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William Mark Barnett, M.D.

NPI 1982990214ActiveIndividual· Family Medicine· Rolla, MO

Family Medicine (M.D.) with Mercy Clinic Springfield Communities, practicing in Rolla, Missouri. Their prescriptions cost Medicare Part D more than their services did: $1,056,758 for 13,966 claims, against $68,259 paid for services in 2024. Lists Mercy Hospital Lebanon and 2 other hospitals as hospital affiliations.

Overview

NPI1982990214
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJun 24, 2011
Last updated in NPPESJul 16, 2014

Specialties and licenses

TaxonomyCodeLicenseState
Family Medicine Primary207Q00000X2014011573MO
Family Medicine207Q00000X2011018665MO

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 (MO)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients222
Services billed876 across 35 procedure codes
Paid by Medicare$68,259

Part D prescriptions in 2024

Prescriptions (claims)13,966 · 24,820 30-day fills
Patients688
Total drug cost$1,056,758
Generic share89% of claims

Medicare sources and data years

Education and affiliations

Graduation year2011
Medicare specialtyFamily Practice

Medical group

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 Rolla

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