Thomas J. McMahon, MD
Surgery Physician · Anaconda, MT
Thomas J. McMahon, MD is a surgery physician with a practice address in Anaconda, Montana, and NPI 1558399709, issued on Jun 28, 2006. Check the license (Montana 8098, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Thomas J. McMahon
- Credential
- MD
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 8098 MT
Self-reported in NPPES; status is on the state search - Practice location
- 305 W Pennsylvania Ave, Anaconda, MT 59711
- Phone
- (406) 563-8571
- Enumerated
- Jun 28, 2006
- Record last updated
- Jan 12, 2024
- Fax
- (406) 563-8523
- Medicare enrollment
- Enrolled (PECOS I20031215000339); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 136 in Montana → Look up another NPI →
Also registered at 305 W Pennsylvania Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Stacie Connors, NPFamily Nurse Practitioner1508939505
- Maria Cook, M.D.Pediatrics Physician1003158551
Verify Thomas J. McMahon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 8098Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $111.40
2 payments; by number, the most common kind was food and beverage; the largest payer was Orthofix Medical, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- Community Hospital OF AnacondaAnaconda, MT · Critical Access Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Thomas J. McMahon among 136 surgery physician records in Montana
Thomas J. McMahon, MD is one of 136 surgery physician records with a practice address in Montana. 75% 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 11% of them.
- NPI issued2006 · 11% of these records are older, 49% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1989 · median 2003 among the 92 with a school on file
- Record last updated2024 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Montana
There are 136 surgery physician records in Montana.
All 136 in Montana → Every provider in Anaconda → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- John Weber, MDAnaconda, MT 597111760576904
- Kelly Banks, MDBozeman, MT 597151487651766
- Jacob Breeding, M.DBozeman, MT 597151891733366
- Anthony Goodman, M.D.Bozeman, MT 597151043465313
- Andrew Grace, MDBozeman, MT 597151437154291
- Robin Hape, MDBozeman, MT 597151639371818
- Richard Lesperance, M.D.Bozeman, MT 597151194927228
- Garth Olds, MDBozeman, MT 597151164427928
Common questions
What is Thomas J. McMahon, MD's NPI number?
Thomas J. McMahon, MD's National Provider Identifier (NPI) is 1558399709, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas J. McMahon, MD located?
The NPPES record lists a practice address at 305 W Pennsylvania Ave, Anaconda, MT, 59711. Phone: (406) 563-8571. Providers update this record themselves, so call before visiting.
How can I verify Thomas J. McMahon, MD's license?
NPPES lists Montana license number 8098, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.