Skip to content

Erin K. Ly, M.D.

NPI 1740638725ActiveIndividual· Internal Medicine, Gastroenterology· Buffalo, NY

Internal Medicine, Gastroenterology (M.D.) in Buffalo, New York, trained at State University of New York at Buffalo School of Medicine (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $771,195 for 200 claims, against $3,141 paid for services in 2024. Janssen Biotech, Inc. was the largest of 6 companies reporting payments in 2025, $25,342 in all, mostly speaking and faculty fees.

Overview

NPI1740638725
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedMay 31, 2016
Last updated in NPPESFeb 3, 2023
Certified by providerFeb 3, 2023

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Gastroenterology Primary207RG0100X320787NY

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Gastroenterology (NY)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients25
Services billed41 across 13 procedure codes
Paid by Medicare$3,141

Part D prescriptions in 2024

Prescriptions (claims)200 · 284 30-day fills
Patients52
Total drug cost$771,195
Generic share70% of claims

Medicare sources and data years

Education and affiliations

Medical schoolState University of New York at Buffalo School of Medicine
Graduation year2016
Medicare specialtyGastroenterology
Secondary specialtiesInternal Medicine

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$25,342 · 38 payments from 6 companies
  • 2024$2,542 · 2 payments from 1 company

Top paying companies in 2025

What the 2025 payments were for

  • Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$22,591 · 12 payments
  • Food and Beverage$1,454 · 24 payments
  • Travel and Lodging$1,297 · 2 payments

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other gastroenterologists in Buffalo

All 26 gastroenterologists in Buffalo · All gastroenterologists in New York