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Ron Dunchok, MD

NPI 1356331730ActiveIndividual· Internal Medicine· San Dimas, CA

Internal Medicine (MD) in San Dimas, California, licensed in CA, with an NPI issued in October 2005. Part D covered 40 prescriptions written in 2024, 80% of them generic.

Overview

NPI1356331730
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorYes
NPI issuedOct 26, 2005
Last updated in NPPESJan 7, 2017

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XA42469CA

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)Not in the public enrollment file of Oct 1, 2026

Part D prescriptions in 2024

Prescriptions (claims)40 · 101 30-day fills
Patients17
Total drug cost$4,387
Generic share80% of claims

Medicare sources and data years

Industry payments (Open Payments)

None reported for 2025 or 2024.

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

Other Internal Medicine providers in San Dimas

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