Zachary A. Gregg, M.D.

Surgery - Colon & Rectal, General Surgery

Gregg Zachary 81302 Gregg Zachary 81302 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