Skip to content

William B. Holmes, M.D.

NPI 1528001815ActiveIndividual· Internal Medicine· Fresno, CA

Internal Medicine (M.D.) in Fresno, California, trained at Ohio State University College of Medicine (class of 1975). Their prescriptions cost Medicare Part D more than their services did: $323,897 for 4,161 claims, against $54,415 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 20 companies reporting payments in 2025, $1,742 in all, mostly food and beverage.

Overview

NPI1528001815
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJun 14, 2006
Last updated in NPPESAug 11, 2010

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XG32816CA

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 - Internal Medicine (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients292
Services billed2,605 across 39 procedure codes
Paid by Medicare$54,415

Part D prescriptions in 2024

Prescriptions (claims)4,161 · 9,332 30-day fills
Patients465
Total drug cost$323,897
Generic share89% of claims

Medicare sources and data years

Education and affiliations

Medical schoolOhio State University College of Medicine
Graduation year1975
Medicare specialtyInternal Medicine
TelehealthOffers telehealth

Medical group

Hospital affiliation

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,742 · 80 payments from 20 companies
  • 2024$1,546 · 52 payments from 19 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$1,742 · 80 payments

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

Other Internal Medicine providers in Fresno

All Internal Medicine providers in California →