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Gregory C. Mahr, M.D.

NPI 1841350717ActiveIndividual· Psychiatry & Neurology, Psychiatry· Ferndale, MI

Psychiatry & Neurology, Psychiatry (M.D.) in Ferndale, Michigan, trained at Wayne State University School of Medicine (class of 1983). 145 Medicare patients in 2024, $20,770 paid; nearly all of their 428 Part D prescriptions were generic (96%).

Overview

NPI1841350717
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedDec 11, 2006
Last updated in NPPESJul 31, 2018

Specialties and licenses

TaxonomyCodeLicenseState
Psychiatry & Neurology, Psychiatry Primary2084P0800X4301047989MI

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 - Psychiatry (MI)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients145
Services billed216 across 18 procedure codes
Paid by Medicare$20,770

Part D prescriptions in 2024

Prescriptions (claims)428 · 596 30-day fills
Patients37
Total drug cost$7,743
Generic share96% of claims

Medicare sources and data years

Education and affiliations

Medical schoolWayne State University School of Medicine
Graduation year1983
Medicare specialtyPsychiatry
TelehealthOffers telehealth

Medical group

Hospital affiliations

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

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