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William Barker, D.O.

NPI 1275554073ActiveIndividual· Family Medicine· Chesterfield, MI

Family Medicine (D.O.) in Chesterfield, Michigan, trained at Michigan State University College of Osteopathic Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $572,392 for 7,296 claims, against $27,978 paid for services in 2024.

Overview

NPI1275554073
StatusActive
Entity typeIndividual
CredentialD.O.
Sole proprietorNo
NPI issuedJul 21, 2006
Last updated in NPPESMar 11, 2021
Certified by providerMar 11, 2021

Specialties and licenses

TaxonomyCodeLicenseState
Family Medicine Primary207Q00000X5101013935MI

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 4, 2026No match—
New York OMIG · Nov 4, 2026No match—
Ohio Medicaid · Nov 4, 2026No match—
Pennsylvania Medicheck · Nov 4, 2026No match—
Washington HCA · Nov 4, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Family Practice (MI)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients135
Services billed629 across 28 procedure codes
Paid by Medicare$27,978

Part D prescriptions in 2024

Prescriptions (claims)7,296 · 14,244 30-day fills
Patients561
Total drug cost$572,392
Generic share87% of claims

Medicare sources and data years

Education and affiliations

Medical schoolMichigan State University College of Osteopathic Medicine
Graduation year1998
Medicare specialtyFamily Practice
TelehealthOffers telehealth

Medical groups

Hospital affiliations

Other facilities

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 Family Medicine providers in Chesterfield

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