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Mary B. Herner, MD

NPI 1477884187ActiveIndividual· Internal Medicine· Alameda, CA

Internal Medicine (MD) in Alameda, California, trained at University of California, San Francisco School of Medicine (class of 2007). Part D covered 4,260 prescriptions written in 2024, 93% of them generic.

Overview

NPI1477884187
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJan 19, 2010
Last updated in NPPESDec 22, 2021

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XA107080CA

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)Enrolled Practitioner - Internal Medicine (CA)

Part D prescriptions in 2024

Prescriptions (claims)4,260 · 10,018 30-day fills
Patients674
Total drug cost$212,244
Generic share93% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of California, San Francisco School of Medicine
Graduation year2007
Medicare specialtyInternal Medicine

Medical group

Source: CMS Care Compare

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 Alameda

All 42 internal medicine physicians in Alameda · All internal medicine physicians in California