Skip to content

John W. Butler, M.D.

NPI 1174521264ActiveIndividual· Ophthalmology· Salisbury, MD

Ophthalmology (M.D.) in Salisbury, Maryland, trained at University of Maryland School of Medicine (class of 1995). In 2024 Medicare paid $4,542,345 for 1,330 patients, and Part D covered 236 of their prescriptions, 68% of them generic. Genentech USA, Inc. was the largest of 4 companies reporting payments in 2025, $335.14 in all, mostly food and beverage.

Overview

NPI1174521264
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJul 12, 2005
Last updated in NPPESSep 28, 2020
Certified by providerSep 28, 2020

Specialties and licenses

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Ophthalmology (DE); Practitioner - Ophthalmology (MD)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients1,330
Services billed67,029 across 51 procedure codes
Paid by Medicare$4,542,345

Part D prescriptions in 2024

Prescriptions (claims)236 · 356 30-day fills
Patients92
Total drug cost$13,415
Generic share68% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Maryland School of Medicine
Graduation year1995
Medicare specialtyOphthalmology

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$335.14 · 27 payments from 4 companies
  • 2024$356.80 · 15 payments from 4 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$335.14 · 27 payments

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

Other Ophthalmology providers in Salisbury

All Ophthalmology providers in Maryland →