TGH/TGMG - Radiation Oncology

Dr. Chain is a board-certified family medicine physician. After graduating from Laurentian University in Ontario, Canada, Dr. Chain attended medical school at St. Matthew's University in Grand Cayman, Cayman Islands. He completed both family medicine and primary care sports medicine residency programs at the University of Connecticut/Saint Francis Hospital and Medical Center, where he served as chief resident.

Dr. Chain is a member of the American Academy of Family Physicians (AAFP), American Medical Society for Sports Medicine (AMSSM) and Connecticut Academy of Family Physicians (CAFP). Previously, he volunteered as a member of the medical professional team for the Boston Marathon and as an assistant coach for the North Bay Down Syndrome Society Special Olympic athletes. Dr. Chain is fluent in both English and French.

Dr. Chain treats patients of all ages.
Dr. Chain is recognized by the NCQA Diabetes Recognition Program.

Dr. Sauer Choe is a board-certified internal medicine and pediatrics physician. She attended medical school at the College of Osteopathic Medicine at Kansas City University in Kansas City, MO. She completed her residency at the University of South Florida in Tampa, FL. As an undergraduate, Dr. Sauer Choe received her bachelor of science degree in cellular molecular biology from Southeast Missouri State University in Cape Girardeau, MO.
Dr. Sauer is a member of the American College of Physicians and the American Academy of Pediatrics. She is proficient in medical Spanish.

Dr. Gadea is a board-certified internal medicine physician. He completed his undergraduate degree in biology at the University of South Florida in Tampa, FL. Dr. Gadea went on to complete his medical degree in osteopathic medicine at Nova-Southeastern College of Osteopathic Medicine in Davie, FL and an internal medicine residency at the Philadelphia College of Osteopathic Medicine in Philadelphia, PA.

Dr. Gadea has practiced as a primary care physician in the Tampa Bay area since 1998, providing care for adult and geriatric patients. For over six years, he served as a medical director for a private/public collaboration between the Florida Agency for Health Care Administration (AHCA) and Pfizer pharmaceutical company leading a disease management program specifically designed to help a large group of patients suffering from chronic medical conditions such as congestive heart failure and diabetes to better understand their medical conditions and health needs in order to better care for themselves and improve their quality of life.

Dr. Gadea's professional interests include individualized diabetes care, hypertension, chronic obstructive pulmonary disease and hyperlipidemia. He focuses on preventive health and patient education, and encourages his patients to take an active part in their healthcare plan.

Dr. Gadea has received numerous 'Patients Choice Awards' and was recently recognized as one of 'America's Best Physicians' by the National Consumer Advisory Board. He is a member of the American Osteopathic Association and has received recognition from the National Committee for Quality Assurance for diabetes care. He is fluent in English and Spanish.

Outside of the office, Dr. Gadea enjoys exercising, fishing and travelling with his family.

Dr. Kervin 'Keri' Doctor is a board-certified family medicine physician. After attending the State University of New York to study biology, she received her pre-medical diploma from the University Medical School of Debrecen in Debrecen, Hungary. Dr. Doctor earned her medical degree from the Windsor University School of Medicine in Cayon, St. Kitts. She completed her first year of residency in the LSU Rural Family Medicine Residency Program and the remainder at Cahaba Medical Care Family Medicine Residency Program.

Dr. Doctor has participated in medical mission and international work in India serving rural, tribal and indigent populations and assisting setup of new clinics in these areas. She is a member of several professional organizations including the American Academy of Family Physicians, American Medical Association, Association of American Physicians of Indian Origins and American Medical Women's Association.

Dr. Doctor treats patients of all ages.

Mayer Fishman, MD, PhD, has more than 20 years of experience in medical oncology, specializing in urologic oncology. With a focus on creating longitudinal plans for patient care, Dr. Fishman utilizes emerging therapies and medication options to coordinate chemotherapy, medical therapy, radiation and surgical services. Dr. Fishman's expertise in innovative care is matched by his teaching and administrative experience. In addition to spending more than 18 years on the medical staff and in different committees at H. Lee Moffitt Cancer Center in Tampa, Florida, he also served as a professor in the Department of Internal Medicine at USF Health Morsani College of Medicine in Tampa. Over 80 fellows have rotated through his clinic. Dr. Fishman has more than 100 publications to his credit and has been invited to speak on a variety of oncology topics at lectures and seminars. He is a current member of the American Society of Clinical Oncology (ASCO), European Society for Medical Oncology (ESMO) and American Association for Cancer Research (AACR).

Dr. Ashish Singhal is a fellowship-trained multi-organ transplant surgeon with an affinity for treating patients with end-stage liver diseases and liver cancer and specializes in liver transplantation, liver resection, and living-donor liver transplantation.

Prior to joining Tampa General Hospital, Dr. Singhal served as a senior consultant surgeon at Fortis Hospitals, India. Dr. Singhal brings a wide range of experience and knowledge of the complex living-donor liver transplantation procedure.

Dr. Singhal's extensive experience includes working as an attending surgeon in the Division of Abdominal Organ Transplantation and Hepatobiliary Surgery at Allegheny General Hospital in Pittsburgh. He spent two years as a consultant surgeon in the Division of Liver Transplantation and Hepatobiliary Surgery at Fortis Hospital in Mohali, India, after being an assistant professor of surgery at the University of Cincinnati Medical Center.

In addition to transplantation, Dr. Singhal treats patients with liver disease, cancer of the liver, gallbladder, bile ducts, and other cancers that spread to the liver from other organs. He has an unparalleled commitment to working with patients in complex health circumstances and providing high-quality care to improve the quality of life of patients.

Dr. Singhal is credited with several publications, book chapters, presentations, abstracts, and journal reviews in areas of his expertise. Affiliated with the American Society of Transplant Surgeons and numerous professional organizations, Dr. Singhal has served as a committee member for many professional organizations too. His research interests include living donor liver transplantation, liver cancer, liver regeneration, and transplant immunology/pharmacology.