Gastroenterology

Erin Ly, M.D.

Co-Director of Gastroenterology Services, Erie County Medical Center; Clinical Assistant Professor, University at Buffalo Jacobs School of Medicine; Assistant Program Director, Gastroenterology, Hepatology, and Nutrition Fellowship Program

Dr. Erin K. Ly, MD, is a dual board-certified gastroenterologist and internal medicine physician specializing in inflammatory bowel disease (IBD), including Crohn’s disease and ulcerative colitis. She serves as the only advanced-trained IBD specialist in Western New York, practicing at Erie County Medical Center (ECMC) in Buffalo, NY. Dr. Ly treats patients with complex IBD cases, integrating her expertise in nutritional therapy, psychological factors in chronic GI illnesses, and advanced clinic

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Credentials

Board Certifications

Gastroenterology (ABIM)
Internal Medicine (ABIM)

Education & Training

University at Buffalo Jacobs School of Medicine — M.D.
University of Toronto — Advanced Clinical Fellowship, Inflammatory Bowel Disease
University at Buffalo — Fellowship, Gastroenterology, Hepatology, and Nutrition (Chief GI Fellow)
NYU Long Island School of Medicine — Residency, Internal Medicine
Columbia University — M.S., Nutrition

Years in Practice

10+ years

Peer Recognition

Top Doctors — Top Doctors Award
2025

Clinical Focus

Subspecialties

Inflammatory Bowel Disease

Conditions & Treatments

Crohn's DiseaseUlcerative ColitisInflammatory Bowel Disease

Insurance(s) Accepted

90 Degree BenefitsASR Health Benefits

AetnaAllegiance Health PlansAspirus Health Plan

Please verify your coverage with the provider — plan participation can change.

Practice Details

Hospital Affiliations

Erie County Medical Center

Languages

English

Conditions Dr. Ly treats

Insurance accepted

Frequently asked

Does Dr. Ly accept 90 Degree Benefits insurance?

Erin Ly's public profile lists 90 Degree Benefits, ASR Health Benefits, and Aetna plus 47 more health plans as accepted plans. Plan participation can change — confirm directly with the practice before your visit.

Where does Dr. Ly practice?

Erin Ly practices in Buffalo, NY with hospital affiliations including Erie County Medical Center.

What does Dr. Ly specialize in?

Erin Ly is a board-certified gastroenterology specialist with focus areas in Inflammatory Bowel Disease.

How long has Dr. Ly been practicing?

Erin Ly has 10+ years of clinical experience in gastroenterology.

What is Dr. Ly's medical training?

Public profile training history includes: University at Buffalo Jacobs School of Medicine — M.D.; University of Toronto — Advanced Clinical Fellowship, Inflammatory Bowel Disease; University at Buffalo — Fellowship, Gastroenterology, Hepatology, and Nutrition (Chief GI Fellow).