Zachary A. Gregg, M.D.

Surgery - Colon & Rectal, General Surgery

Gregg Zachary 81302

Sentara Martha Jefferson Medical Group

Clinical Interests

Anorectal Disease, Colon Cancer, Colorectal Surgery, Crohn's Disease, Diverticulitis, Fissures, Fistulas, Hemorrhoids, Inflammatory Bowel Disease, J-Pouch procedures, Pelvic Floor Dysfunction, Rectal Cancer - Sphincter-sparing operations, Rectal Prolapse, Rectal Surgery, Single Incision Laparoscopic Surgery (SILS), Transanal Minimally Invasive Resection (TAMIS), Ulcerative Colitis

Board Certifications

American Board of Colon and Rectal Surgery - Colon & Rectal Surgery

American Board of Surgery - General Surgery



Medical Education

BS : James Madison University, Harrisonburg, VA

M.D. : Rutgers New Jersey Medical School, Newark, NJ

Medical Experience

Residency: Brown University, Providence, RI

Fellowship: Penn State Hershey Medical Center, Hershey, PA