NPPES file of Aug 9, 2026

Thomas P. O'Brien, M.D.

Family Medicine Physician · Bozeman, MT

Thomas P. O'Brien, M.D. is a family medicine physician with a practice address in Bozeman, Montana, and NPI 1467807842, issued on May 4, 2016. Check the license (Montana 90743, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1467807842
Name
Thomas P. O'Brien
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
90743 MT
Self-reported in NPPES; status is on the state search
Practice location
3905 Wellness Way, Bozeman, MT 59718
Phone
(406) 898-1300
Enumerated
May 4, 2016
Record last updated
Nov 20, 2025
Fax
(406) 898-1309
Medicare enrollment
Enrolled (PECOS I20201030001338); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3905 Wellness Way

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Maria Ballesteros Bono, RN, RD, CDCES, MSDiabetes Educator Registered Nurse1053427211
  2. Ellen Frazier, DOFamily Medicine Physician1467941633
  3. Matthew Hustad, DPTPhysical Therapist1184086894
  4. Jaime June, IBCLCLactation Consultant (Non-RN)1982456257
  5. Niamh Linehan, MPAS, PA-CPhysician Assistant1275936254
  6. Kristen Prewitt, DOFamily Medicine Physician1396979118

Verify Thomas P. O'Brien in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMontana Board of Medical Examiners
    Search for license 90743    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Montana license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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One hospital affiliation

  1. Billings ClinicBozeman, MT · Acute Care Hospitals4 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.

55 family medicine physician records list a practice address in Bozeman

They are 55 of the 2,433 NPPES records with a practice address in Bozeman, and 775 family medicine physician records in Montana.

All 55 in Bozeman → All 775 in Montana → Every provider in Bozeman →

Other family medicine physician records in Montana

  1. Marc Adams, MDShelby, MT1265449482
  2. Dale Agner, M.D.Billings, MT1861486490
  3. Marjorie AlbersMiles City, MT1174029086
  4. Brandon Allen, MDEnnis, MT1215499421
  5. Hans Amen, D.O.Malmstrom Afb, MT1538426507
  6. Beth Ammons, MDMissoula, MT1780623926
  7. Bjorn Anderson, DOStevensville, MT1770146037
  8. Emily AndersonRonan, MT1750744942
  9. Jonathan Anderson, MDKalispell, MT1356397533
  10. Leah Anderson, M.D.Bozeman, MT1851504195

Common questions

What is Thomas P. O'Brien, M.D.'s NPI number?

Thomas P. O'Brien, M.D.'s National Provider Identifier (NPI) is 1467807842, issued on May 4, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Thomas P. O'Brien, M.D. located?

The NPPES record lists a practice address at 3905 Wellness Way, Bozeman, MT, 59718. Phone: (406) 898-1300. Providers update this record themselves, so call before visiting.

How can I verify Thomas P. O'Brien, M.D.'s license?

NPPES lists Montana license number 90743, 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.