Dr David Tan

Senior Radiation Oncologist
Asian Alliance Radiation & Oncology

Dr. David Tan is a Consultant Radiation Oncologist at Asian Alliance Radiation & Oncology. His clinical expertise is in the management of gynaecological, gastrointestinal, hepato-biliary and lung cancers, and in the use of Stereotactic Body Radiotherapy (SBRT) in the treatment of liver, pancreas and oligometastatic disease. He is also trained in Brachytherapy for gynaecological cancers.

Dr. Tan graduated from the National University of Singapore in 2005 with a Bachelor of Medicine and Bachelor of Surgery (MBBS), and commenced training in Radiation Oncology in 2007. In 2011, Dr. Tan was awarded a Health and Manpower Development Award by the Singapore Ministry of Health to undergo a Fellowship in Advanced Oncology in the UK. There, at the Mount Vernon Cancer Cancer in Middlesex, he obtained advanced training in general oncology and further subspecialized in the above tumour sites. He also trained under renowned experts in stereotactic radiosurgery and brachytherapy. Dr. Tan subsequently obtained the FRCR in Clinical Oncology in 2013 and was admitted as a Fellow of the Academy of Medicine, Singapore (FAMS) in Radiation Oncology in 2014

Prior to joining AARO, Dr. Tan worked as Consultant Radiation Oncologist at the National Cancer Centre Singapore (NCCS). During his 10 years of service in the public sector, he pioneered the Liver and Pancreas SBRT programs, and oversaw their development from protocol development to patient enrolment and subsequently to treatment of increasingly complex cases such as multiple liver metastases and portal vein thrombosis in hepatocellular carcinoma (HCC). He was a strong advocate of advanced radiotherapy techniques and frequently organized talks and multi-disciplinary discussions to update his peers and surgical & medical oncology colleagues on their applications and benefits.
Dr. Tan is the Singapore National Project Coordinator for the International Atomic Energy Agency (IAEA) Regional Project 6085, which aims to Enhance Stereotactic Body Radiation Therapy for Frequent Cancers in the Asia-Pacific Region. After establishing Singapore as one of the regional training hubs in Asia-Pacific, Dr. Tan conducted the first regional training course of the project in NCCS in 2016, which was attended by participants from 17 member states. He is also council member of the Federation of Asian Organizations for Radiation Oncology (FARO), which is a non-profit scientific organization comprising national radiation oncology societies in Asia to improve the level of radiotherapy in the region.

On the local front, Dr. Tan serves as an executive committee member in the Singapore Radiological Society (SRS) where he holds the office of honorary treasurer, and is also a fellow in the Academy of Medicine. As an active member of the radiation oncology subsection of the SRS, Dr. Tan organizes annual scientific dinner-symposiums for the local oncology community to update them on the latest advances in radiotherapy in common tumor sites such as liver, lung and gynecological tumors, as well as on latest technologies such as proton therapy. Dr. Tan also held position as Adjunct Assistant Professor at the Duke-NUS Graduate Medical School where he hosted and supervised medical students for clinical attachments at NCCS, and was clinical lecturer at the Nanyang Polytechnic School of Radiation Therapy where he gave lectures to budding radiation therapists.

Dr. Tan is actively involved in clinical research and has published in major oncology journals on a wide range of topics including SBRT, brachytherapy, gastrointestinal and gynaecological cancers. He was invited to be guest editor for a focused issue entitled “Advances in Stereotactic Radiosurgery” in the Chinese Clinical Oncology journal in 2017, where with his co-editors he formulated content and collaborated with international experts to publish the latest updates in stereotactic radiotherapy treatments. He frequently contributes as a reviewer in surgical, oncology and radiotherapy journals. Dr. Tan is a member of the following international oncology societies: American Society of Clinical Oncology (ASCO), American Society for Radiation Oncology (ASTRO), European Society for Radiotherapy and Oncology (ESTRO) and the International Stereotactic Radiosurgery Society (ISRS).​

Dr Bala Vellayappan

Senior Consultant Radiation Oncologist
Department of Radiation Oncology
National University Cancer Institute Singapore

Dr Bala graduated from NUS in 2005 with Dean’s List and was conferred the prestigious Wong Poi Kwong Gold Medal for excellence in Clinical Medicine. He then went on to complete his training in Radiation Oncology with the Royal Australian and New Zealand College of Radiologists (RANZCR) and was awarded the C.E. Eddy medal for being the most outstanding candidate (in Australia, New Zealand and Singapore). He has been a RANZCR fellow since 2014 and obtained his Specialist Accreditation in the same year.

Dr Bala worked as a fellow (HMDP) at Liverpool Hospital, Sydney, Australia under the tutelage of Dr Dion Forstner (Dean of RANZCR college). In addition, he was awarded a competitive funded fellowship by University of Ottawa in 2015. He has received formal training in stereotactic radiotherapy, completing a fellowship at The Ottawa Hospital Cyberknife Centre, which is one of the busiest Cyberknife Centres in North America. He has developed a keen interest in neuro-oncology (in particular spine), haematological and gastro-intestinal cancers, but continues to treat a wide range of cancers in his practice.

Dr Bala strongly believes research and education are integral parts of clinical improvement. He is appointed as an undergraduate examiner by NUS and a postgraduate examiner by RANZCR. He was awarded a scholarship by Ministry of Health and has since completed his Master of Clinical Investigation. His research interests include the use of radiosurgery/SBRT and the interaction between radiation, the immune system and the vasculature.. He has won several competitive grants and is currently conducting a prospective clinical trial in Stereotactic Body Radiotherapy for spinal metastases.

Dr Bala’s treatment philosophy focuses on patient-centric care and evidence-based decision making. Away from work, he enjoys spending time with his family and Indie music.

Leadership Positions
2011 – 2012: Chief Resident
2012 – 2013: RANZCR Trainee’s committee Singapore Representative
Singapore Radiological Society – co-opted EXCO member

Dr Lim Ming Yann

Deputy head and Senior Consultant
ENT Surgeon
Otolaryngology Department
Tan Tock Seng Hospital

Dr Lim Ming Yann is a senior consultant in the department of Otolaryngology. He is a subspecialist in head and neck oncology, and did his fellowship in Advanced Head and Neck Surgical Oncology Surgery at MD Anderson Cancer Centre, Texas, USA from 2014-2015.

Besides clinical care, Dr Lim is actively involved in research and has published widely in several peer reviewed journals. He is also currently International Editor of the Journal of Otolarynoglogy Head and Neck Surgery (OTOHNS), the official peer reviewed journal of the American Academy of Otolaryngology-Head and Neck Surgery (AAO-HNS).

Dr Lim believes in the education and training of the next generation of doctors. He is currently a member of the Core Faculty for the NHG Otolaryngology residency, and is actively involved in the surgical training of Otolaryngology residents in the National Healthcare Group (NHG). He is also Senior Clinical lecturer for National University of Singapore medical school and Core Tutor for the Lee Kong Chian/ NTU medical school.

Dr Julian Goh

Senior Consultant Head & Neck Radiologist
Department of Diagnostic Radiology
Tan Tock Seng Hospital

Dr Goh graduated from the National University of Singapore in 1991, and obtained his Radiology degree from the Royal College of Radiologists (UK) in 1999. He joined the Department of Radiology, Tan Tock Seng Hospital, Singapore, in 1999, and was trained in Head and Neck Imaging by Dr Tan Tiong Yong.

He did a fellowship at The University of Iowa in Head and Neck Imaging under the supervision of Professor Wendy Smoker. Dr Goh also had a short attachment in 2012 at the University of Leuven, Belgium, under Dr Vincent Vandecaveye.

Dr Goh currently works as a Head and Neck radiologist at Tan Tock Seng Hospital, Singapore. His main interests are in nasopharyngeal, laryngeal and hypopharyngeal cancer, and in imaging of the temporal bone.

Dr Robert Malyapa

Director of Proton Therapy Singapore
Proton Therapy Pte Ltd

Dr. Robert Malyapa is a radiation oncologist in Baltimore, Maryland and is affiliated with University of Maryland Medical Center. He received his medical degree from Jawaharlal Institute of Postgraduate Medical Education and Research and has been in practice for more than 20 years.

Dr Lester Leong

Adj Associate Professor
Senior Consultant Radiologist
Singapore General Hospital

Dr Lester Leong is a Senior Consultant with the Department of Diagnostic Radiology ＆ Interventional Imaging at the Singapore General Hospital. Dr Leong is an Adjunct Assistant Professor with the Radiological Sciences Academic Clinical Program, SingHealth Services, Duke-NUS Medical School.
He completed his specialty traineeship in Diagnostic Radiology in Singapore. His subspecialty interest is breast imaging and he underwent a fellowship in breast imaging under the auspices of the SingHealth’s Human Resource Development Program Scholarship at the Brigham and Women’s Hospital, Boston, Massachusetts, United States of America in 2010. He did another fellowship in breast imaging at the St Bartholomew’s Hospital in London, UK. He has special research interests in breast cancer screening, breast MRI imaging, ultrasound breast elastography, and imaging evaluation of axillary nodes.

Dr Leong is the Immediate Past Chairperson of the Chapter of Diagnostic Radiologists, College of Radiologists, Singapore and the Immediate Past Chair of the Breast Imaging Subsection, Singapore Radiological Society, Singapore. In addition, Dr Leong is an active contributor to teaching and continuing medical education in radiology. He serves as Core Faculty and Audit Director of the SingHealth Diagnostic Radiology Residency Programme. He is also a founding member and Chairperson of the biennial BreastDay Multidisciplinary Meeting.

Dr Veronique Tan

Clin. Assoc Professor and Senior Consultant
Head, Department of Breast Surgery
Singapore General Hospital

Clinical Associate Professor Veronique Tan is a Senior Consultant and Chief of Breast Surgery at National Cancer Centre Singapore and Singapore General Hospital. She also Heads the SingHealth Duke-NUS Breast Centre. As one of the few breast surgeons in Singapore formally trained in oncoplastic breast surgery, A/Prof Tan believes that the appearance of the breast after cancer resection is important, and that every patient should have a tailored, individualised surgical solution. She works within a dynamic multidisciplinary team to deliver precise, high quality and effective treatment. A/Prof Tan’s practice covers benign breast conditions, the diagnosis and surgical treatment of symptomatic and screen-detected breast cancer, oncoplastic breast surgery and breast reconstruction. Active in research and teaching, A/Prof Tan has published numerous articles in peer-reviewed journals and contributed several book chapters on oncoplastic and reconstructive breast surgery.

Dr Michael Stauder

Associate Professor
Radiation Oncologist
MD Anderson Cancer Center

Dr. Stauder is an Associate Professor of Radiation Oncology and a member of the Morgan Welch Inflammatory Breast Cancer Research Program and Clinic at MD Anderson Cancer Center in Houston, Texas. Dr. Stauder earned his undergraduate degree from The University of Chicago and earned his medical degree from University of Wisconsin School of Medicine and Public Health. He then completed his clinical internship year at The University of Illinois-Chicago and a clinical residency in Radiation Oncology at Mayo Clinic, Rochester, MN.

Dr. Stauder’s research focus centers on the design and development of prospective clinical trials for evaluation of immunotherapy in combination with radiation especially in triple negative, inflammatory and (oligo) metastatic hormone positive breast cancer. He is also interested in the development of novel radio sensitizers, new image guided radiotherapy techniques and functional imaging for the effective treatment of breast cancer and other solid tumors. Dr. Stauder is a member of several national and international radiation-therapy related societies and organizations. Dr. Stauder has authored many articles, editorials, abstracts and book chapters. He has been involved with several educational and mentorship activities including resident training and global academic programs.

Dr Robert Chen

Senior Consultant NeuroRadiologist
Singapore General Hospital

Dr. Chen is trained in both Neuroradiology and Emergency Radiology, where he was a fellow and subsequent staff at Massachusetts General Hospital, Harvard Medical School. He is board certified in the USA with a Certificate of Added Qualification (CAQ) in Neuroradiology and is currently the Director of Neuroradiology at SGH.

His interests include all facets of neuroimaging, resident education, operations, and wellness.

Dr Eddie Tan

Consultant Neurosurgeon
National Neuroscience Institute

Dr Eddie Tan completed his neurosurgical training in 2018, and was awarded the College of Surgeon’s Gold Medal 2019 as the best performing advanced surgical trainee in Neurosurgery. He is currently a Consultant Neurosurgeon at the National Neuroscience Institute in Singapore. He has subspecialty interest in brain tumour surgery, particular in tumours of the skull base.

Dr Joshua Palmer

Associate Professor
Director of CNS and pediatrics radiation oncology
Radiation Oncologist
The Ohio State University Wexner Medical Center

Dr. Palmer is a radiation oncologist specializing in the treatment of central nervous system (CNS) malignancies, such as primary and secondary brain tumors as well as cancers of the spine. I am also a committed physician-scientist, devoting a significant portion of my professional time to prospective clinical trials and strategies to improve the efficacy of radiation. I have published over 100 manuscripts, book chapters and abstracts, including publications in such leading medical journals as Cancer Cell, Lancet Oncology, NEJM, JAMA Oncology, Radiotherapy and Oncology, Journal of Neuro-Oncology and Neurology.

My research focuses on translational oncology, biomarker discovery and the interaction of diet on cancer therapy. I serve as a national co-PI on three brain metastasis trials in the NRG Oncology and ALLIANCE for Clinical Trials groups, including the ALLIANCE A071801 study investigating single fraction vs fractionated radiosurgery for resected brain metastasis. I am also a member of the International Guideline Harmonization Group for neurocognitive problems and colorectal cancer, and a committee member on the National Comprehensive Cancer Network’s pediatric CNS tumors national guidelines.

Dr Colin Tan

Consultant Nuclear Medicine Physician and Radiologist
ParkwayHealth Radiology
Mount Elizabeth Novena Hospital

​Dr. Colin Tan is a dual-accredited consultant in Radiology and Nuclear
Medicine, practicing at Mount Elizabeth Novena Hospital. His area of
interest oncological imaging, with emphasis on abdomino-pelvic neoplasm
imaging with CT and MRI, and PET, utilising both conventional and novel
tracers. In addition to PET/CT,  ParkwayHealth Radiology operates the sole
clinical PET/MRI service in Singapore, which is seeing increasing utility in
clinical practice.

Dr Timothy Lim

Gynecologic Oncologist
Obstetrics and Gynaecology Specialist
Timothy Lim Clinic for Women & Cancer Surgery

Dr Timothy Lim Yong Kuei is a Specialist in Obstetrics and Gynaecology with a special interest in the management of gynaecological cancers. He is currently in private practice at Mount Alvernia Hospital in Singapore. His key interests are in laparoscopic surgery, complex pelvic surgery and the prevention and treatment of gynaecological cancers.

He graduated from the National University of Singapore in 1998 and obtained his post-graduate qualifications in O&G from the Royal College of O&G, London in 2003. He started his gynaecological oncology fellowship training in the Department of Gynaecological Oncology, KKH in 2006 and was awarded the Health Manpower Development Programme of MOH(HMDP) award to train in minimally invasive gynaecological cancer surgery in France in 2008. He also obtained the Masters in Law (LLM) in Medical Law and Ethics at the University of Edinburgh in 2016.

He was the Head and Senior Consultant Gynaecologist of the Department of Gynaecological Oncology, KKH from 2014 to 2019 as well as the Deputy Chairman of the Division of O&G, KKH from October 2015 to 2019. He was an Associate Professor (Adj) at the YLL Medical School, National University of Singapore, Duke-NUS Medical School, Singapore and the LKC School of Medicine, Singapore from 2017 to 2019. He was a Physician Faculty member of the Singhealth O&G Residency Program from 2012 to 2019 and was the course director of the colposcopy and management of preinvasive diseases program in the Singhealth O&G ACP from 2016 to 2019.

He was instrumental in developing minimally invasive gynae-cancer surgery to be a standard of care in KKH as well as pioneering the use of ICG-NIR for sentinel lymph node biopsy services in endometrial cancers since 2016. He started performing laparoscopic Wertheim’s radical hysterectomy for cervical cancer in Singapore since 2009, as well as ICG- NIR sentinel lymph node biopsy for early endometrial cancer in Dec 2015. He also introduced digital colposcopy services in the management of preinvasive diseases in the colposcopy suites, KKH in 2016. He has also successfully managed several pregnancies for Stage IB cervical cancer survivors who have undergone fertility sparing radical trachelectomies.

He was the Academic Vice-Chair of Research in the Singhealth O&G Academic Clinical Program (ACP) from April 2018 to 2019. As a clinical researcher, he has authored and co-authored more than 40 peer reviewed papers. He was also the principal investigator in several multicentre HPV vaccine clinical trials as well as co-investigator in several multicentre chemotherapy trials in KK hospital. He is an associate editor of the Singapore Journal of O&G.

He has a strong passion in public education especially in the prevention and treatment of gynaecological cancers and has helped organise numerous public health talks and activities for the last decade. He has been a volunteer doctor in the Singapore Cancer Society for many years and is the current Chairman of the Women’s Gynaecological Cancer Awareness committee in SCS since 2014. He also dedicates his time to professional education by serving in the councils of the O&G Society of Singapore (OGSS) and Society for Colposcopy and Cervical Pathology of Singapore (SCCPS) for the last 10 years and was the President of OGSS from 2019 to 2021. He is the current Honorary President of SCCPS since March 2019. He also served as the section head for gynaecologic oncology in the College of O&G Singapore from 2016 to 2018.

He has garnered numerous awards including the best clinical teacher award (NUS) in 2007, Service with a Heart awards, Singheath service quality (Star) award in 2011 & 2018, NUS commendation award (role model) in 2013 & 2014, Outstanding faculty award in Singhealth O&G residency program 2014, 2015,2016 and 2018 as well as the best scientific abstract award (Gynaecologic Oncology) at the 10th RCOG international Scientific Congress in 2012 and the best surgical video presentation award at the 10th Singapore O&G Congress 2015.

Dr Sushil Beriwal

Professor of Radiation Oncology & Academic Chief
Allegheny Health Network 
Pittsburgh PA

I specialize in gynecologic, breast, and prostate cancers, with an emphasis on high dose rate brachytherapy for cervix, uterine, vagina, and breast cancers, along with prostate seed implantation, image-guided radiation therapy, and intensity modulated radiation therapy. I am actively involved with clinical research with more than 175 peer reviewed publications. I am also ABR board examiner and on the editorial board of Brachytherapy and also senior editor for Red journal. I provide oversight and supervision of clinical radiation oncology at UPMC Magee and UPMC Mercy Hospital. I am actively involved in residency and medical student teaching and research as program director. My research interests are 3D image-based brachytherapy, IMRT and IGRT, outcome analysis for breast prostate and gynecological cancers, Clinical Pathways, and NCDB data analysis.

Dr James Hallinan

Consultant Radiologist
National University Hospital

Dr. James Hallinan has been practicing in Singapore since 2008 and is a Consultant at the Department of Diagnostic Imaging, National University Hospital, Singapore. He also serves under Diagnostic Imaging Services at Alexandra Hospital. He obtained his medical degree (MBChB) from Bristol University, United Kingdom, and underwent radiology training at the National University Hospital, Singapore. He is a Fellow of the Royal College of Radiologists, United Kingdom. His subspeciality interests are in musculoskeletal and neuroradiology. He was awarded the Academic Medicine Development Award (AMDA) in 2018 and underwent a 6-month clinical observership in musculoskeletal radiology with Professor Donald Resnick at UCSD, California, USA.

Dr Naresh Kumar

Associate Professor and Senior Consultant
Orthopedic Surgeon
National University Hospital

A/Prof Naresh Kumar practiced in the University of Birmingham & New Cross Hospital in United Kingdom. He was appointed as a consultant after he finished his fellowship at Haborview Medical Centre, Seattle in 2001. He has now been established as senior consultant and successful spinal surgeon for the last twelve years with effect from February 2007.

He did his spinal fellowships at Queen’s Medical Center Nottingham, UK (for degenerative spinal problems and spinal trauma); St. James Hospital, Leeds, UK (for spinal deformity correction) and at Harborview Medical Centre, Seattle USA (for cervical spine, spinal trauma & metastatic spine disease). His training has helped him to deal with the whole spectrum of spinal problems successfully. He has moved to Singapore to be a part of the University Spine Center at the National University Hospital. He has a keen interest in key-hole and minimal access surgery. He practices the whole spectrum of spinal surgery which include: degenerative conditions of the spine, spine trauma, spine tumour & spinal deformity corrections. He has developed a full spectrum of treatment of degenerative spinal conditions. His main interest is development of treatment for the cancer involvement of spinal column. He specialises in surgical and comprehensive management of secondary spread from another cancer in the body to the spine, as well as primary spine tumours He has published extensively in this field, reaching appreciable heights.

A/Prof Kumar completed his medical degree from All India Institute of Medical Sciences, New Delhi in 1986 with a distinction. He completed his Master of Surgery in Orthopaedics in 1989 from the same institute and got appointed as an Associate Consultant in Orthopaedics. The burning desire to learn and excel made him move from India to the United Kingdom. He became the fellow of the Royal College of Surgeons of Edinburgh in 1992. He was appointed on the registrar rotation in Leeds, upon the completion of which he became a fellow of the intercollegiate board in Orthopaedics in 1997. He was awarded the FRCS (Orthopaedics & trauma). He was then awarded a DM (Orthopaedics & Spinal Surgery) by the University of Nottingham in 2006 for his research he conducted comparing human and animal spine.

A/Prof Naresh Kumar has been trained by some eminent spinal surgeons from the United Kingdom and USA. For the six years from 2001 onwards he has been a successful consultant at Wolver Hampton in the United Kingdom and a Senior Lecturer in Orthopaedics for the University of Birmingham. He has successfully finished twelve years at National University Hospital, Singapore. He has published widely on contemporary ideas and techniques pertaining to spinal surgery.

Dr Simon Lo

Professor of Neurological Surgery and Vice Chair for Strategic Planning
Director of SBRT
Radiation Oncologist
University of Washington Medical Center

Dr. Simon Lo is Professor and Vice Chair of Strategic Planning at the University of Washington Department of Radiation Oncology and also Professor of Neurological Surgery. He is also Director of SBRT at UW. Dr. Lo has edited 5 comprehensive textbooks in SRS/ SBRT in addition to 3 other comprehensive textbooks and has published over 230 full peer-reviewed papers, a majority of which on SRS/ SBRT for all body sites and has led the SBRT programs in 3 NCI-designated Comprehensive Cancer Centers. He is a member of the Board of Directors and the medical director of the Distinction in Practice of Stereotactic Radiotherapy Accreditation Program for Radiosurgery Society. Dr. Lo has led or participated in numerous guidelines in CNS tumors, spinal metastasis, bone metastasis, SRS, and SBRT. He is a Fellow of ACR and ASTRO. In 2019, he was granted the Lifetime Achievement Award by the Society for Palliative Radiation Oncology. He is the Immediate Past President of the Radiation Oncology Chapter of American College of Radiology. He is also a cofounder of IROCK (consortium for SBRT for renal cell carcinoma).

Dr Damian Khor

Consultant Nuclear Medicine Physician and Radiologist
Head of Department, Nuclear Medicine
Advanced Medicine Imaging

Dr Khor obtained his basic medical degree from the National University of Singapore, following which he obtained his postgraduate qualification (FRCR) in 2011. He is the first dual accredited Nuclear Medicine and Diagnostic Radiologist in Singapore.

Dr Khor was formerly a consultant at the National Cancer Institute of Singapore and Department of Diagnostic Imaging, NUHS, where he was involved in numerous research work and has published in many peer review journals. He currently sits on the MOH advisory committee for Nuclear Medicine practice and is a National Examiner for post-graduate training in Diagnostic Radiology in Singapore.

Dr Khor has trained at the Peter MacCallum cancer centre and The Austin Hospital in Melbourne in the field of Nuclear Medicine Theranostics and PET neuroimaging. He has special interests in Oncologic PET imaging, PET Neuroimaging and targeted radionuclide therapy.

Dr Lee Lui Shiong

Adj Associate Professor
Head & Senior Consultant
Department of Urology
Sengkang General Hospital

Dr Lee Lui Shiong completed undergraduate education at the National University of Singapore in 2002 and obtained postgraduate qualifications of MRCS (Edinburgh) and MMed (Surgery) in 2005. In 2010, he was awarded the College of Surgeons Gold Medal in Urology, as the most outstanding urology trainee.

He is a Senior Consultant in the Urology Service, Department of General Surgery, Sengkang General Hospital. He is a Visiting Consultant in the Department of Surgical Oncology, NCC, and is a core member of the Pelvic Oncology workgroup and a co-chairman of the Urology Cancer Service Line Development.

Dr Chad Tang

Assistant Professor
Radiation Oncologist
MD Anderson Center Center

Dr. Tang received his BS and MS in Biomedical Engineering from Case Western Reserve University and his MD from Stanford University. He completed a residency in radiation oncology at MD Anderson Cancer Center. His clinical interests are in the treatment of patients with genitourinary malignancies including prostate cancer, kidney cancer, bladder cancer, and testicular cancer with image-guided (IGRT) conventional external beam radiation therapy, proton therapy, stereotactic body radiation therapy (SBRT), and brachytherapy. His research interests are in translational and clinical trials for both genitourinary malignancies and in the utilization of radiation in conjunction with new molecularly targeted agents for the treatment of metastatic disease.

Dr Jonathan Teh

Senior Radiation Oncologist
Asian Alliance and Radiation Oncology

Dr Jonathan Teh Yi Hui is a radiation oncologist at Farrer Park Hospital, as well as the Asian Alliance Radiation & Oncology. Prior to joining AARO, he was a consultant at the National Cancer Centre Singapore (NCCS), where he had served in various roles since 2006. He specialises in genitourinary and gastrointestinal cancers, as well as bone and soft tissue sarcomas and paediatric cancers.  After completing his MBBS at the National University of Singapore (NUS) in 2002, Dr Teh commenced a Radiation Oncology residency at NCCS in 2007. He received the Singhealth Health Manpower Development Programme Award for Advanced Training in Clinical Oncology in 2009 and was an Honorary Clinical Fellow in the University College Hospital London Oncology department from 2009 to 2011. He was also active in the London Sarcoma Service, providing patient care and participating in clinical trials.

In 2011, he received the Fellowship of the Royal College of Radiologists (FRCR UK) in Clinical Oncology. Upon returning to Singapore, Dr Teh was admitted as a Fellow of the Academy of Medicine of Singapore’s (FAMS) Chapter of Radiation Oncology and commenced work as a Consultant Radiation Oncologist at NCCS. In 2012, he joined the NCCS Blood Transfusion Committee until July 2017 and also received the Singhealth Doctor’s Long Service Award.  Dr Teh’s research interests include advanced radiotherapy for prostate cancer treatment. He was the Principal Investigator of a Phase II Trial in Stereotactic Ablative Body Radiotherapy for Low-Intermediate Risk Prostate Cancer from 2013 to 2017, which was Southeast Asia’s first trial of this non-invasive technique.

Dr Teh’s work has been presented at international conferences, and he has also been invited to speak on these subjects in regional meetings. He has written and published extensively on the subject of sarcoma treatment.

Dr Brendan Chia

Consultant Radiation Oncologist
National Cancer Centre

Dr Chia is a Consultant Radiation Oncologist, with subspecialty interest in Lung and Brain Cancers as well as Stereotactic Body Radiotherapy and Stereotactic Radiosurgery.

In 2016, Dr Chia completed his training specialty training and obtained is fellowship in Clinical Oncology from the Royal College of Radiologist, UK. He concurrent had completed his Masters in Clinical Investigation for performing biomarker research in Lung cancer. Subsequent to this he obtained SingHealth Overseas Training Award in 2016 where he trained in St. Bartholomew’s Hospital, UK for a year in Lung and Brain Clinical Oncology as well as CyberKnife applications.

Dr Chia is interested in improving patients outcomes and is actively involved in research related to both lung and brain radiotherapy. He is involved in teaching medical students, nurses, radiotherapy staff and residents. He is also certified to perform Stereotactic Body Radiotherapy to Lung and bone lesions as well as perform Stereotactic Radiosurgery for brain lesions.

Dr Timothy Cheo

Consultant Radiation Oncologist

National University Cancer Institute Singapore (NCIS)

Dr Timothy Cheo obtained his medical degree from the National University of Singapore (MBBS). He later completed his specialist training with the Royal Australian and New Zealand College of Radiologists (RANZCR) in radiation oncology. As part of his training, he spent 6 months with PeterMacallum Cancer Centre in Melbourne, Australia.

Dr Pittaya Dankulchai

Associate Professor
Head of division of Radiation Oncology
Department of Radiology, Faculty of Medicine Siriraj Hospital, Mahidol University

Dr Pittaya Dankulchai is the head of the division of radiation oncology in the department of radiology, faculty of medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.

He completed his MD in the Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand in 2001, following which he proceeded to complete his residency in radiation oncology in 2007. He has special interests in image guided brachytherapy in gynaecologic malignancy and radiotherapy in prostate cancer and has completed research and clinical observer fellowships in Mount Vernon Cancer Centre, Northwood, Middlesex, United Kingdom and General Hospital of Vienna, Medical University of Vienna, Austria.

He was awarded the ‘Siriraj Ring Cap’ first runner-up award from national innovation in 2017 and ‘Siriraj Ring Cap’ Innovation awards from both routine to research (R2R) Thailand and Office of the Public Sector Development Commission in 2016. Dr Pittaya Dankulchai was speaker for radiotherapy status in Thailand during the 2010 Radiation oncology in Asia and role of japan, International forum of nuclear cooperation in Asia meeting

Dr Yuan Taize

Chief physician, Deputy Medical director
Guangzhou Concord Cancer Center

He graduated from Sun-Yat Sen university Cancer Center in 2008。He had been in Iowa University Cancer Center and University of Florida Proton Therapy Institute for one year as a visiting scholar from July 2015 to July 2016. He got proton therapy training in Mayo Clinic for 6 months for Nov. 2019 to – May 2020.
Member of radiotherapy professional committee of Guangdong doctor’s Association,
Member of NPC special committee of Guangdong Anti-cancer Association,
Member of NPC special committee of Guangdong Clinical Association

Dr Joe Chang

Consultant Radiation Oncologist
Liverpool Hospital Sydney

Dr Joe Chang is a Consultant Radiation Oncologist at Liverpool Hospital in Sydney, Australia, subspecialising in central nervous system, head and neck, skin, and sarcoma. He completed radiation oncology specialist training at the Peter MacCallum Cancer Centre in Melbourne, and completed his PhD in functional and molecular imaging at the University of Melbourne in 2015. He completed a clinical fellowship at the Sunnybrook Odette Cancer Centre in Toronto, Canada from 2015 to 2016, where he obtained further specialist training in lung and CNS oncology. He has a special interest in stereotactic ablative body radiotherapy (SABR), for which he has multiple publications. He currently chairs the Sydney SABR Consortium.

Dr Sergey Usychkin

Head of Radiation Oncology Department
Hadassah Medical Moscow

Dr. Sergey Usychkin is Head of Radiation Oncology Department at Hadassah Medical Moscow.

Dr. Usychkin graduated from the Far-Eastern State Medical University in Khabarovsk, Russia in 2006 with honors. In 2008 he completed his training in the Department of Radiation Oncology and Radiology of Khabarovsk Regional Cancer Center and entered Fellowship Program at the Russian Research Cancer Center named after N.N.Blokhin in Moscow, Russia. His research was focused on the advanced techniques of radiation therapy of head and neck cancers.
In 2009 Dr. Usychkin was awarded the Clinical Research Travel Grant from the European Society for Medical Oncology (ESMO) and spent two years in the Instituto Madrileño de Oncología (Grupo IMO), Madrid, Spain. During his fellowship Dr. Usychkin obtained a Master’s degree in The First International Master on Advanced Technological Applications in Radiation Oncology in the University of Murcia, Spain. At that time, he conducted retrospective studies on the intraoperative radiation therapy (IORT) in gliomas under the supervision of renowned Spanish radiation oncologist, Prof. Felipe Calvo. As a fellowship researcher Dr. Usychkin rotated through several Clinics of GrupoIMO in Madrid and Castilla La Mancha, including Tomotherapy and CyberKnife Units.
In 2012 Dr. Usychkin returned to Moscow and joined the team of the JSC Medicina Clinic. In this clinic Dr. Usychkin worked as a consultant radiation oncologist under the supervision of Prof. Zvi Fuks, the chairman of Radiation Oncology Department at Memorial-Sloan Kettering Cancer Center in New York and Medical Director of the Champalimaud Center for the Uknown in Lisbon, Portugal. In 2014 Dr. Usychkin introduced an institutional clinical protocol of extremely- hypofractionated image-guided radiation therapy for localized prostate cancer utilizing a special technique of prostate immobilization with air-filled endorectal balloon at the JSC Medicina Clinic.

In 2016 Dr. Usychkin became Head of Radiation Oncology Department at Medscan Clinic in Moscow. The department was created in collaboration with the Asian American Radiation Oncology Group from Singapore. In 2016 Dr. Usychkin went to the University of Pittsburgh Medical Center (UPMC) at Shadyside Hospital and Hillman Cancer Center for a short fellowship. Later he introduced advanced stereotactic radiation treatment techniques for prostate, lung, and liver tumors in the daily practice of Medscan Clinic.

In 2020 Dr. Usychkin was appointed Head of Radiation Oncology Department of Hadassah Medical Moscow.

Dr Daniel Tan

Senior Radiation Oncologist
Asian Alliance Radiation and Oncology

Dr Daniel Tan Yat Harn is medical director and senior radiation oncologist at Asian American Radiation & Oncology (AARO). He specializes in the use of Stereotactic Radiosurgery (SRS/SBRT) and Advanced Radiation Technologies to treat complex cancers. His clinical interests are in the management of central nervous system (Brain and Spine) tumors, prostate and breast cancers. Prior to entering private practice, Dr Tan was consultant radiation oncologist in the Division of Radiation Oncology, National Cancer Centre Singapore, where he led the development of the first SRS and SBRT programs in Singapore for various organ sites.

After graduating from the National University of Singapore (NUS) in 2002, Dr Tan underwent specialist training at the National Cancer Center Singapore (NCCS) and was awarded a Health Manpower Development (HMDP) award by the Ministry of Health (MOH) in 2008 for training in Clinical Oncology. He obtained his Fellowship of the Royal College of Radiologists in the UK (FRCR) in Clinical Oncology in 2011 and was given another HMDP Award for training in brachytherapy, stereotactic radiosurgery and body irradiation (SRS/SBRT) in 2012.

Dr Tan was admitted as a Fellow of the Academy of Medicine of Singapore (Radiation Oncology) in 2012.
His sub-specialty training was with a focus on neurooncology at international premier centres, including Proton Therapy at University of Pennsylvania’s Roberts Proton Therapy Center in USA, Spine

Professor Stephanie E. Combs

Radiation Oncologist
TUM School Of Medicine

Professor Combs (*1976) is a leading expert in the field of radiation oncology and radiation therapy. Her key expertise is highly conformal radiation therapy (stereotactic treatment, IMRT/IGRT/ART, protons and carbon ions). Her scientific work includes areas including treatment optimization for brain and skull base tumors, biomarkers in radiation oncology, pediatric oncology, gastrointestinal oncology, uro-oncology, gynecological oncology, radiochemotherapy and radioimmunotherapy.

Prof. Combs studied medicine in Heidelberg, and in Norfolk and San Antonio, USA. After her graduation and promotion 2003, she worked as research associate in Heidelberg. Following her postdoctoral lecture qualification 2009, she was promoted in 2011 to vice chair of the radiation oncology department in Heidelberg. 2014, Prof. Combs was appointed professor and chair of the TUM department of radiation oncology. In 2015, she also took over the institute of radiation medicine of the Helmholtz Zentrum. Since 2019, Prof. Combs heads the TUM senate.

AWARDS

• Basic/Translational Senior Science of the American Society of Radiation Oncology (2019)
• Robert Janker Award for Palliative Medicine (2012)
• Award of the Behnken-Berger-Foundation Berlin (2010)
• Herrmann Holthusen Award of the German Society of Radiation Oncology (DEGRO) (2010)
• Sigrid and Karl-Georg Hengstenberger Award of the University of Heidelberg (2006)

Mr Tay Guan Heng

Software Sales Specialist, SEA/Korea
Varian Medical Systems Pacific, Inc.

Education:
Nanyang Technological University, Singapore
B.Sc, Applied Physics, School of Physical and Mathematical Sciences

Experience:
Radiation Physicist
National Cancer Centre Singapore

Affiliation:
Member of Society of Medical Physics Singapore (SMPS)

Dr Grace Kusumawidjaja

Consultant Radiation Oncologist
National Cancer Centre

Specialty: Radiation Oncology

Dr Ivy Ng

Associate Consultant Radiation Oncologist
National University Cancer Institute, Singapore

Dr Ivy Ng  graduated from the Yong Loo Lin School of Medicine, National University of Singapore  (NUS) in 2010. She obtained her post-graduate qualification from the Royal College of Physicians (UK) and her Masters of Medicine (Internal Medicine) from NUS before embarking on her specialist training with the Royal Australian and New Zealand College of Radiologists (RANZCR) in Radiation Oncology. As part of her training, she spent 3 months with Peter MacCallum Cancer Centre in Melbourne, Australia.

During her training, she served as the Chief Resident and was a member of the RANZCR Radiation Oncology Trainees Committee (ROTC) and Research Committee.

She also has keen interest in teaching and was awarded the National Healthcare Group (NHG) Outstanding Teaching Award as a house officer in 2011. She now contributes to undergraduate teaching as a tutor for Yong Loo Lin School of Medicine and Singapore Institute of Technology.

Mr William Starbuck

Clinical Marketing Manager – TPS/RAP
Elekta

William Starbuck is the Clinical Marketing Manager for Region Asia Pacific at Elekta.

Working across Asia, William works with our various portfolios in providing expert technical support, customer partnerships and high-end utilisation opportunities for customers.

Prior to this role, he was the clinical product specialist for treatment planning systems within ANZ.

William has a background in the implementation of SBRT programs and general dosimetry, having worked in Radiation Oncology in various countries for over 15 years.

Mr Dean Wilkinson

Medical Physicist
TROG, Illawarra Cancer Care Centre 

Dean Wilkinson is a medical physicist at the Illawarra Cancer Care Centre in Wollongong, Australia.  He completed his undergraduate degree and MSc at the University of Wollongong and obtained his certification in radiation oncology medical physics at The Canberra Hospital, Australia before moving to the United Kingdom to work at Mount Vernon Hospital, London in 2011.

During his time in the United Kingdom (U.K) he was part of a team who undertook a national dosimetry audit of rotational radiotherapy techniques (VMAT and Tomotherapy).  The study incorporated 34 institutions and 43 treatment delivery systems.

Dean’s main clinical interests are in the implementation of advanced treatment techniques such as VMAT and SBRT as well as the development of novel detectors for radiation dosimetry.  He has a passion for clinical trials and is involved in various work with the Trans-Tasman Radiation Oncology Group (TROG).  He also holds an Honorary Fellow position with the School of Physics at the University of Wollongong where he enjoys teaching undergraduate and postgraduate students as well as collaborating on research activities.

Mr Matthew Price

Global Head of Planning Automation
Genesiscare 

Matt is the Global Head of Planning Automation and Centralised Planning for GenesisCare. Working across Australia, UK, Spain and the US, Matt works with our clinical and Executive leadership teams to develop and execute the GenesisCare strategy for Dosimetry services. Matt works closely with software development teams to build automated planning solutions on a scalable level to improve planning quality and ultimately increase access to patients across all regions where GenesisCare operate. Matt has a background in Dosimetry, working in Radiation Oncology for over 20 years.