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John David Culbertson, M.D.

NPI 1649219833ActiveIndividual· Internal Medicine· San Anselmo, CA

Internal Medicine (M.D.) in San Anselmo, California, trained at Medical University of South Carolina College of Medicine (class of 1998). Part D covered 7,242 prescriptions written in 2024, 88% of them generic. Novo Nordisk Inc was the largest of 4 companies reporting payments in 2025, $141.93 in all, mostly food and beverage.

Overview

NPI1649219833
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJun 5, 2006
Last updated in NPPESJan 22, 2025
Certified by providerJan 22, 2025

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XA99250CA
Internal Medicine207R00000X23216AL
Internal Medicine207R00000X26725SC

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 4, 2026No match—
New York OMIG · Nov 4, 2026No match—
Ohio Medicaid · Nov 4, 2026No match—
Pennsylvania Medicheck · Nov 4, 2026No match—
Washington HCA · Nov 4, 2026No match—

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Internal Medicine (CA)

Part D prescriptions in 2024

Prescriptions (claims)7,242 · 18,094 30-day fills
Patients766
Total drug cost$366,918
Generic share88% of claims

Medicare sources and data years

Education and affiliations

Medical schoolMedical University of South Carolina College of Medicine
Graduation year1998
Medicare specialtyInternal Medicine

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$141.93 · 6 payments from 4 companies

Top paying companies in 2025

CompanyAmountPayments
Novo Nordisk Inc$46.152
Lilly USA, LLC$44.022
Heartflow, Inc.$30.311
Amgen Inc.$21.451

What the 2025 payments were for

  • Food and Beverage$141.93 · 6 payments

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

Other Internal Medicine providers in San Anselmo

All Internal Medicine providers in California →