Gastroenterology
Erik Holzwanger, M.D.
Director, Endoluminal Surgery and Bariatric Endoscopy; Assistant Professor, Gastroenterology, Tufts University School of Medicine
Dr. Erik Holzwanger is a board-certified gastroenterologist and advanced endoscopist practicing at Tufts Medical Center in Boston, Massachusetts. He serves as Director of Endoluminal Surgery and Bariatric Endoscopy, specializing in complex endoscopic procedures including ERCP, EUS, luminal stenting, EMR, ESD, and POEM. His clinical expertise encompasses pancreatic disease, esophageal disorders, gastrointestinal cancer, and bariatric medicine. Dr. Holzwanger has extensive experience treating cond
12+
Years in Practice
Credentials
Board Certifications
- Gastroenterology (ABIM)
- Internal Medicine (ABIM)
- Obesity Medicine (ABOM)
Education & Training
- Beth Israel Deaconess Medical Center/Harvard Medical School — Fellowship, Advanced Endoscopy, 2022-2023
- Tufts Medical Center — Fellowship, Gastroenterology, 2019-2022
- UMass Chan Medical School/UMass Memorial Medical Center — Residency, Internal Medicine/Chief Medical Resident, 2015-2018
- Ross University School of Medicine — M.D., 2014
Peer Recognition
- Castle Connolly — Top Doctor
2025-2026 (2 years)
2023, 2025 (2 years)
2024
- Tufts Medical Center — Fellow Teacher of the Year
2019
Clinical Focus
Subspecialties
Conditions & Treatments
Practice Details
Hospital Affiliations
- Tufts Medical Center
Languages
English, Spanish
Experience
12+ years in practice