Leadership

Sharon Beth Weissman, MD, is division chief of infectious diseases at Prisma Health in Columbia, South Carolina, where she also serves as a clinical professor of internal medicine at the University of South Carolina School of Medicine. She previously served as program director for the Prisma Health–Midlands Infectious Disease Fellowship Program. Dr. Weissman received her medical degree from Columbia University in New York City and completed her residency at Beth Israel Hospital in Boston. After her residency, she completed a fellowship in infectious diseases at Beth Israel Hospital-Brigham and Women's Hospital, also in Boston. She previously held positions at Case Western Reserve University in Cleveland, where she was director of the HIV/Infectious Disease Clinic at the Louis Stoke Cleveland VAMC, and Yale University School of Medicine in New Haven, Connecticut, where she also served as director of HIV services at the Hospital of Saint Raphael. 

Training

• Palmetto Health/University of South Carolina School of Medicine – Fellowship, Endocrinology Diabetes and Metabolism
• Palmetto Health-University of South Carolina School of Medicine – Residency, Internal Medicine
• University of South Carolina School of Medicine – Medical School/Dental School, Doctor of Medicine

Board certifications

• Endocrinology Diabetes and Metabolism, American Board of Internal Medicine
• Internal Medicine, American Board of Internal Medicine

Mary Beth Poston, MD, is a clinical professor of internal medicine at Prisma Health. She received her medical degree from the University of South Carolina School of Medicine and completed her residency at Palmetto Health Richland, both in Columbia. She then completed an academic general internal medicine fellowship at the Medical University of South Carolina in Charleston and is board certified in internal medicine.

Academically, Dr. Poston is interested in graduate medical education and is the Internal Medicine Residency Program Director. Her additional interests include ultrasound in medical education and increasing physical activity in primary care.