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Marc Stephen Posner, M.D.

NPI 1114930211ActiveIndividual· Family Medicine· Baltimore, MD

Family Medicine (M.D.) in Baltimore, Maryland, trained at University of Maryland School of Medicine (class of 1976). Their prescriptions cost Medicare Part D more than their services did: $356,332 for 2,678 claims, against $44,193 paid for services in 2024. Pfizer Inc. was the largest of 3 companies reporting payments in 2025, $105.54 in all, mostly food and beverage.

Overview

NPI1114930211
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedAug 14, 2006
Last updated in NPPESDec 19, 2007

Specialties and licenses

TaxonomyCodeLicenseState
Family Medicine Primary207Q00000XD19640MD

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 - Family Practice (MD)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients108
Services billed726 across 17 procedure codes
Paid by Medicare$44,193

Part D prescriptions in 2024

Prescriptions (claims)2,678 · 5,797 30-day fills
Patients161
Total drug cost$356,332
Generic share83% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Maryland School of Medicine
Graduation year1976
Medicare specialtyFamily Practice

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$105.54 · 4 payments from 3 companies
  • 2024$215.40 · 12 payments from 5 companies

Top paying companies in 2025

CompanyAmountPayments
Pfizer Inc.$46.642
Astrazeneca Pharmaceuticals LP$30.041
Novo Nordisk Inc$28.861

What the 2025 payments were for

  • Food and Beverage$105.54 · 4 payments

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

Other family medicine physicians in Baltimore

All 344 family medicine physicians in Baltimore · All family medicine physicians in Maryland