John Thomas McMahan, MD
Otolaryngology Physician · Appleton, WI
John Thomas McMahan, MD is an otolaryngology physician with a practice address in Appleton, Wisconsin, and NPI 1518910272, issued on May 17, 2006. Check the license on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- John Thomas McMahan
- Credential
- MD
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- 036051277 IL
Self-reported in NPPES; status is on the state search - Practice location
- 247 S Nicolet RD, Appleton, WI 54914
- Phone
- (888) 938-3838
- Enumerated
- May 17, 2006
- Record last updated
- Apr 1, 2025
- Fax
- (888) 919-1083
- Medicaid ID
- 036051277 IL
- Medicare enrollment
- Enrolled (PECOS I20250416002420); may accept Medicare assignment
- Medical or professional school
- Medical University Of South Carolina College Of Medicine, 1973
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 231 in Wisconsin → Look up another NPI →
Also registered at 247 S Nicolet RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kathryn Dahlinger, PA-CPhysician Assistant1942790365
- Dawn Dymond-Rebman, APNPNurse Practitioner1184189755
- Ryan Funk, M.D.Otolaryngology Physician1720460363
- Alethia Hughes, PA-CPhysician Assistant1669649919
- Alexandra Linnabary, PA-CPhysician Assistant1922683176
- Nicole McIntyre, PA-CPhysician Assistant1053067025
Verify John Thomas McMahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% more Medicare Part D claims than the average otolaryngology physician in 2024
550 Medicare Part D claims for 184 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Omeprazole124 claims
- Montelukast Sodium93 claims
- Fluticasone Propionate80 claims
- Prednisone42 claims
- Azelastine Hcl36 claims
- Pantoprazole Sodium28 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 63.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
John Thomas McMahan among 231 otolaryngology physician records in Wisconsin
John Thomas McMahan, MD is one of 231 otolaryngology physician records with a practice address in Wisconsin. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 45% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1973 · median 2004 among the 147 with a school on file
- Record last updated2025 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Wisconsin
There are 231 otolaryngology physician records in Wisconsin.
All 231 in Wisconsin → Every provider in Appleton → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Ryan Funk, M.D.Appleton, WI 549141720460363
- Rahul Subbarayan, M.DAppleton, WI 549141801281415
- Gregory Swanson, MDAppleton, WI 549151710971783
- Matthew Bettag, M.D.Appleton, WI 549111487646675
- Kent Schaefer, M.D.Appleton, WI 549111801888011
- Steven Vandenberg, M.D.Appleton, WI 549111295727345
- Benjamin Johnson, MDOshkosh, WI 549041508420647
- Suhail Hariri, MDFond Du Lac, WI 549351942281068
Common questions
What is John Thomas McMahan, MD's NPI number?
John Thomas McMahan, MD's National Provider Identifier (NPI) is 1518910272, issued on May 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Thomas McMahan, MD located?
The NPPES record lists a practice address at 247 S Nicolet RD, Appleton, WI, 54914. Phone: (888) 938-3838. Providers update this record themselves, so call before visiting.
How can I verify John Thomas McMahan, MD's license?
Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Thomas McMahan, MD prescribe under Medicare Part D?
In 2024, John Thomas McMahan, MD had 550 Medicare Part D claims for 184 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is John Thomas McMahan, MD's MIPS final score?
The 2023 MIPS final score is 63.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.