TGH/TGMG - Nephrology 409 Bayshore Blvd

Dr. Jeffrey Lester graduated from the University of South Florida with a bachelor degree in finance in 1996. He returned to USF in 1997 to earn a degree in chemistry, completed in 2004. Dr. Lester attended Ross University School of Medicine and graduated with a doctor of medicine degree in June 2004. In July 2004 he started his internal medicine residency at the University of Oklahoma in Tulsa and became board certified in internal medicine in 2007. He completed his training in medical genetics at the University of Miami in 2009. In November 2009 Dr. Lester moved to Maryland and worked for Family Health Centers of Baltimore, a small community health center serving with the National Health Service Corps for three years treating low income, indigent patients in internal medicine. In September 2013 Dr. Lester joined the Tampa General Medical Group to open the Sun City Center location. He is a general internist and sees patients 18 years of age and older.

Dr. Lester treats patients 18 years of age and older.
Dr. Lester is recognized by the NCQA Diabetes Recognition Program.

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.

Dr. Petrus is board certified in family medicine. He attended medical school at Southeastern University in North Miami Beach, Florida, where he earned his doctorate degree in osteopathy. Dr. Petrus completed his residency at Suncoast Hospital in Largo, Florida. As an undergraduate, he earned his bachelor of science degree in biology from the University of South Florida in Tampa, Florida. Dr. Petrus is a member of the American College of Osteopathic Family Physicians and the American Osteopathic Association.

Dr. Petrus treats patients 18 years of age and older.

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. Castro is a board-certified family medicine physician. He attended medical school at Arizona College of Osteopathic Medicine in Glendale, AZ and completed his residency at Largo Medical Center in Largo, FL. Dr. Castro's professional research experience includes multiple studies at the University of Michigan Cancer Center in the diagnosis and treatment of head and neck cancer. Dr. Castro's special areas of focus include:
- osteopathic manipulation and trigger point injections
- sports medicine and joint infection
- dermatologic procedures

Dr. Castro is a member of the American College of Osteopathic Family Physicians (ACOFP).

Dr. Castro treats patients of all ages.