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Stephan Philip Leonhardt Altmayer, MD

NPI 1437728821ActiveIndividual· Internal Medicine· Framingham, MA

Internal Medicine (MD) in Framingham, Massachusetts, licensed in MA, with an NPI issued in June 2021.

Overview

NPI1437728821
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJun 21, 2021
Last updated in NPPESJun 21, 2021
Certified by providerJun 21, 2021

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X289784MA

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

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 physicians in Framingham

All 102 internal medicine physicians in Framingham · All internal medicine physicians in Massachusetts