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John Thomas McMahan, MD

NPI 1518910272ActiveIndividual· Otolaryngology· Appleton, WI

Otolaryngology (MD) in Appleton, Wisconsin, licensed in IL, with an NPI issued in May 2006. 97 Medicare patients in 2024, $19,395 paid; nearly all of their 550 Part D prescriptions were generic (96%).

Overview

NPI1518910272
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedMay 17, 2006
Last updated in NPPESApr 1, 2025
Certified by providerApr 1, 2025

Specialties and licenses

TaxonomyCodeLicenseState
Otolaryngology Primary207Y00000X036051277IL
Otolaryngology, Otolaryngic Allergy207YX0602X036051277IL

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 - Otolaryngology (CA); Practitioner - Otolaryngology (FL); Practitioner - Otolaryngology (IL); Practitioner - Otolaryngology (ME); Practitioner - Otolaryngology (TX); Practitioner - Otolaryngology (WI)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients97
Services billed372 across 22 procedure codes
Paid by Medicare$19,395

Part D prescriptions in 2024

Prescriptions (claims)550 · 889 30-day fills
Patients184
Total drug cost$18,791
Generic share96% of claims

Medicare sources and data years

Industry payments (Open Payments)

None reported for 2025 or 2024.

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other otolaryngologists in Appleton

All otolaryngologists in Wisconsin