Dr. Gavin B. Grant

Katrina Kretsinger is a primary care provider, practicing in Internal Medicine in Decatur, Georgia. Dr. Kretsinger is rated as a Distinguished provider by MediFind in the treatment of ADULT Syndrome. Her top areas of expertise are Measles, Togaviridae Disease, Rubella, and Parainfluenza.

Sylvanus Fiakpornoo is a primary care provider, practicing in Internal Medicine in Hiram, Georgia. Dr. Fiakpornoo is rated as an Advanced provider by MediFind in the treatment of ADULT Syndrome. His top areas of expertise are SAPHO Syndrome, End-Stage Renal Disease (ESRD), Severe Acute Respiratory Syndrome (SARS), and Heart Failure with Preserved Ejection Fraction (HFpEF). Dr. Fiakpornoo is currently accepting new patients.

Melissa Rienstra, M.D., earned her medical degree at Mercer University School of Medicine. She then completed a residency in internal medicine at Kennestone Hospital.Dr. Rienstra specializes in internal medicine. She offers comprehensive preventive care as well as the diagnosis and treatment of acute and chronic diseases such as diabetes, hypertension, COPD, heart disease and arthritis. Her special interests include preventative care and women's health.In her spare time, Dr. Rienstra enjoys running, riding bikes and spending time with friends and family. Dr. Rienstra is accepting new patients and welcomes most major insurance plans. Dr. Rienstra is rated as an Advanced provider by MediFind in the treatment of ADULT Syndrome. Her top areas of expertise are Folate Deficiency, Multiple Carboxylase Deficiency, Vitamin B12 Deficiency Anemia, and Subacute Combined Degeneration.