NPPES file of Aug 9, 2026

Thomas G. Triehy, DO

Family Medicine Physician · Great Falls, MT

Thomas G. Triehy, DO is a family medicine physician with a practice address in Great Falls, Montana, and NPI 1588656516, issued on Aug 16, 2005. Check the license (Montana 7784, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588656516
Name
Thomas G. Triehy
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
7784 MT
Self-reported in NPPES; status is on the state search
Practice location
1400 29TH St S, Great Falls, MT 59405
Phone
(406) 454-2171
Enumerated
Aug 16, 2005
Record last updated
Aug 8, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(406) 771-3021
Medicaid ID
0015353 MT
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1400 29TH St S

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

  1. Steven Akre, MDRheumatology Physician1114928090
  2. Kevin Allen, CRNACertified Registered Nurse Anesthetist1629415229
  3. James Asthalter, DOFamily Medicine Physician1023019908
  4. Crystal Bahnson, CPNPPediatric Nurse Practitioner1932621240
  5. Sandra Bailey, D.O.Obstetrics & Gynecology Physician1396772067
  6. Kylee BakkerPediatric Nurse Practitioner1619453552

Verify Thomas G. Triehy 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 7784
    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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Industry payments in 2024: $17.65

1 payment: food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Triehy$17.65
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Thomas G. Triehy among 775 family medicine physician records in Montana

Thomas G. Triehy, DO is one of 775 family medicine 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 91% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 60% of these records are
  • Record last updated2011 · 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 207Q00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

35 family medicine physician records list a practice address in Great Falls

They are 35 of the 1,798 NPPES records with a practice address in Great Falls, and 775 family medicine physician records in Montana.

The 8 family medicine physician records with the nearest ZIP codes

  1. James Asthalter, DOGreat Falls, MT 594051023019908
  2. Marcella Barker, MDGreat Falls, MT 594051265433148
  3. Daniel Gordon, MDGreat Falls, MT 594051821020686
  4. Joseph Lee, MDGreat Falls, MT 594051326029851
  5. Melchisedek Margaris, MDGreat Falls, MT 594051265544183
  6. Michele Marler, M.D.Great Falls, MT 594051396736047
  7. Charles Marler, M.D.Great Falls, MT 594051407847155
  8. Kevin McCrea, MDGreat Falls, MT 594051326081860

Common questions

What is Thomas G. Triehy, DO's NPI number?

Thomas G. Triehy, DO's National Provider Identifier (NPI) is 1588656516, issued on Aug 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Thomas G. Triehy, DO located?

The NPPES record lists a practice address at 1400 29TH St S, Great Falls, MT, 59405. Phone: (406) 454-2171. Providers update this record themselves, so call before visiting.

How can I verify Thomas G. Triehy, DO's license?

NPPES lists Montana license number 7784, 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.