NPPES file of Aug 9, 2026

James H. Attarian, MD

Internal Medicine Physician · Bozeman, MT

James H. Attarian, MD is an internal medicine physician with a practice address in Bozeman, Montana, and NPI 1144209198, issued on Jan 10, 2006. Check the license 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
1144209198
Name
James H. Attarian
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
33021 MN
Self-reported in NPPES; status is on the state search
Practice location
915 Highland Blvd, Bozeman, MT 59715
Phone
(406) 522-2400
Enumerated
Jan 10, 2006
Record last updated
Oct 12, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20070801000486); accepts Medicare assignment
Medical or professional school
University Of Michigan Medical School, 1987
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 915 Highland Blvd

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

  1. Stephanie Abraham, M.D.Emergency Medicine Physician1306135785
  2. Adeola Adelayo, M.D.Child & Adolescent Psychiatry Physician1205996907
  3. Linda Altans, RPHPharmacist1912117748
  4. Kara Arvin, MDNeonatal-Perinatal Medicine Physician1083605976
  5. Michelle Bailey, RN, CS, FNPFamily Nurse Practitioner1134546781
  6. Fraser Ball, PMHNPPsychiatric/Mental Health Nurse Practitioner1770349219

Verify James H. Attarian in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMontana Board of Medical ExaminersCheck 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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79% fewer Medicare Part D claims than the average internal medicine physician in 2024

663 Medicare Part D claims for 156 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 27 claims were for opioids.

  1. James Attarian663
  2. Specialty average3,176

Most prescribed

  1. Levofloxacin44 claims
  2. Prednisone32 claims
  3. Furosemide28 claims
  4. Potassium Chloride27 claims
  5. Amlodipine Besylate21 claims
  6. Losartan Potassium19 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.

Bills Medicare through one group practice

  1. Unity Family HealthcareLittle Falls, MN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

James H. Attarian among 324 internal medicine physician records in Montana

James H. Attarian, MD is one of 324 internal medicine physician records with a practice address in Montana. 72% 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 7% of them.

  • NPI issued2006 · 7% of these records are older, 44% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1987 · median 2006 among the 191 with a school on file
  • Record last updated2007 · 52% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

35 internal medicine physician records list a practice address in Bozeman

They are 35 of the 2,433 NPPES records with a practice address in Bozeman, and 324 internal medicine physician records in Montana.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Timothy Adams, MDBozeman, MT 597151891706537
  2. David Crites, MDBozeman, MT 597151164457453
  3. Robert Hathaway, MDBozeman, MT 597151427068295
  4. Michael Herring, MDBozeman, MT 597151104840842
  5. Pamela Hiebert, MDBozeman, MT 597151023030079
  6. Thomas Kelly, MDBozeman, MT 597151437148194
  7. James Loeffelholz, MDBozeman, MT 597151861416331
  8. Mary O'Rourke, MDBozeman, MT 597151033125091

Common questions

What is James H. Attarian, MD's NPI number?

James H. Attarian, MD's National Provider Identifier (NPI) is 1144209198, issued on Jan 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James H. Attarian, MD located?

The NPPES record lists a practice address at 915 Highland Blvd, Bozeman, MT, 59715. Phone: (406) 522-2400. Providers update this record themselves, so call before visiting.

How can I verify James H. Attarian, MD's license?

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.

How much does James H. Attarian, MD prescribe under Medicare Part D?

In 2024, James H. Attarian, MD had 663 Medicare Part D claims for 156 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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.