USF Health Department of Pediatrics, Division of General Pediatrics

Merlyn Thomas is a family nurse practitioner with more than 20 years of experience in nursing. With strong leadership/management skills and hands-on clinical expertise, she excels in providing compassionate, comprehensive care to patients. Thomas has worked as a family nurse practitioner for at least five years with Tampa General and Palm River Medical Center. Her self-directed approach and resourcefulness also has been utilized as a longtime registered nurse in Tampa General Hospital's emergency room, and transplant, telemetry and medical surgical floors.
Thomas received her Master of Science in nursing from the University of South Florida. Her nursing career started in India, where she earned a master's degree in hospital administration from Mahatma Gandhi University after completing a Bachelor of Science in nursing from the University of Mangalore. She is a member of the Trained Nurses Association of India and the Indian Nurses Association of Central Florida.

Dr. Atreyi Chakrabarti is a board-certified family medicine physician. She attended medical school at Netaji Subhash Chandra Bose Medical College in Jabalpur, India. After earning her medical degree, Dr. Chakrabarti completed her residency trainings in internal medicine and family medicine at the North Wales University Hospital in Wales, U.K., and Rotherham Hospital NHS Trust, U.K. She worked as a general practitioner in Rotherham and Stoke on Trent for two years before moving to the United States. During her time in Massachusetts, she was also appointed as an assistant professor in the Department of Family Medicine at the University of Massachusetts Medical School. Dr. Chakrabarti is a member of the American Association of Family Practice and the Massachusetts Medical Society. Dr. Chakrabarti speaks English, Hindi, Bengali, Urdu and Punjabi. Dr. Chakrabarti sees patients of all ages.

Dr. Farrales is a medical graduate of Manila Central University in the Philipines and completed his family practice residency at Howard University Hospital in Washington, D.C. He relocated to Florida after his residency and for over 15 years worked as a hospital-employed physician and a private practitioner in Ocala and Williston prior to joining the Tampa General Medical Group in January of 2013. His experience includes comprehensive, robust family care practice delivery in rural health clinic settings and excellent treatment of patients from all groups and diverse backgrounds. Dr. Farrales is board certified by the American Board of Family Practice and is a member in good standing of the American Academy of Family Physicians.

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

Nathan Devabose, M.D., provides patient-centered, compassionate, preventative care to patients while focusing on maintaining overall health. Dr. Devabose is board-certified in Intermal Medicine and a registered physician in vascular interpretation and vascular technology with the American Registry for Diagnostic Medical Sonography (ARDMS). As a primary care physician and a vascular internist, he specializes in stroke, blood clots in veins and arteries, and diabetes, high blood pressure and diseases of the veins and arteries.

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.

Dr. Walgampaya is a board-certified internal medicine physician. After completing his undergraduate studies in biology and pre-medicine, Dr. Walgampaya received his medical degree from St. George's University School of Medicine in Grenada, West Indies. He completed his internal medicine residency program at Seton Hall University/St. Michael's Medical Center in Newark, NJ. Previously, Dr. Walgampaya served as a medical director, chief medical officer and coroner, worked in an emergency room, and practiced both traditional and outpatient internal medicine. In his spare time, he enjoys volunteering, reading, traveling, gardening, cycling and running. Treats patients 18 years of age and older.