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Cathie Gantner Overmyer, M.D.

NPI 1760437263ActiveIndividual· Internal Medicine· Jackson, WY

Internal Medicine (M.D.) in Jackson, Wyoming, trained at University of Wisconsin School of Medicine (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $64,229 for 1,195 claims, against $7,523 paid for services in 2024.

Overview

NPI1760437263
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedMay 23, 2006
Last updated in NPPESJan 21, 2025
Certified by providerJan 21, 2025

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X16939AWY
Internal Medicine207R00000X036083495IL

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 - Internal Medicine (IL); Practitioner - Internal Medicine (WY)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients39
Services billed98 across 23 procedure codes
Paid by Medicare$7,523

Part D prescriptions in 2024

Prescriptions (claims)1,195 · 3,127 30-day fills
Patients342
Total drug cost$64,229
Generic share87% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Wisconsin School of Medicine
Graduation year1985
Medicare specialtyInternal Medicine

Medical group

Hospital affiliation

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 Internal Medicine providers in Jackson

All Internal Medicine providers in Wyoming →