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William Francis Barker, DO

NPI 1245868157ActiveIndividual· Internal Medicine· Springfield, MO

Internal Medicine (DO) with Lester E Cox Medical Centers, practicing in Springfield, Missouri. In 2024 Medicare paid $49,330 for 334 patients, and Part D covered 163 of their prescriptions, 87% of them generic. Lists Citizens Memorial Hospital and 1 other hospital as hospital affiliations.

Overview

NPI1245868157
StatusActive
Entity typeIndividual
CredentialDO
Sole proprietorYes
NPI issuedMar 28, 2020
Last updated in NPPESOct 10, 2023
Certified by providerOct 10, 2023

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X2023013570MO

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 (MO)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients334
Services billed669 across 9 procedure codes
Paid by Medicare$49,330

Part D prescriptions in 2024

Prescriptions (claims)163 · 172 30-day fills
Patients74
Total drug cost$10,620
Generic share87% of claims

Medicare sources and data years

Education and affiliations

Graduation year2020
Medicare specialtyInternal Medicine

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

Other Internal Medicine providers in Springfield

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