NPPES file of Aug 9, 2026

Niels R. Harden, M.D.

Emergency Medicine Physician · Bozeman, MT

Niels R. Harden, M.D. is an emergency medicine physician with a practice address in Bozeman, Montana, and NPI 1083819445, issued on Jun 18, 2007. Check the license (Montana 83193, 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
1083819445
Name
Niels R. Harden
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
83193 MT
50844 MN
Self-reported in NPPES; status is on the state search
Practice location
915 Highland Blvd, Bozeman, MT 59715
Phone
(406) 414-5000
Enumerated
Jun 18, 2007
Record last updated
Apr 9, 2025
Medicare enrollment
Enrolled (PECOS I20200317002037); accepts Medicare assignment
Medical or professional school
Sanford School Of Medicine Of University Of South Dakota, 2007
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. James Attarian, MDInternal Medicine Physician1144209198
  6. Michelle Bailey, RN, CS, FNPFamily Nurse Practitioner1134546781

Verify Niels R. Harden 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 83193
    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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51% fewer Medicare Part D claims than the average emergency medicine physician in 2024

111 Medicare Part D claims for 92 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 28 claims were for opioids.

  1. Niels Harden111
  2. Specialty average226

Most prescribed

  1. Hydrocodone-Acetaminophen21 claims
  2. Methylprednisolone11 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.

One hospital affiliation

  1. Bozeman Health Deaconess HospitalBozeman, 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.

Niels R. Harden among 243 emergency medicine physician records in Montana

Niels R. Harden, M.D. is one of 243 emergency medicine physician records with a practice address in Montana. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 45% of them.

  • NPI issued2007 · 45% of these records are older, 48% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2007 · median 2009 among the 144 with a school on file
  • Record last updated2025 · 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 207P00000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

32 emergency medicine physician records list a practice address in Bozeman

They are 32 of the 2,433 NPPES records with a practice address in Bozeman, and 243 emergency medicine physician records in Montana.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Jesse Coil, DOBozeman, MT 597151770789323
  2. Mary Drake, MDBozeman, MT 597151831109362
  3. Douglas Elson, DOBozeman, MT 597151063422889
  4. Charles Fritz, MDBozeman, MT 597151659381473
  5. Steven Gipe, DOBozeman, MT 597151134132988
  6. Joshua Holexa, M.D.Bozeman, MT 597151740443407
  7. Harry Kelleher, M.D.Bozeman, MT 597151467644765
  8. Tiffany Kuehl, M.D.Bozeman, MT 597151538241096

Common questions

What is Niels R. Harden, M.D.'s NPI number?

Niels R. Harden, M.D.'s National Provider Identifier (NPI) is 1083819445, issued on Jun 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Niels R. Harden, M.D. located?

The NPPES record lists a practice address at 915 Highland Blvd, Bozeman, MT, 59715. Phone: (406) 414-5000. Providers update this record themselves, so call before visiting.

How can I verify Niels R. Harden, M.D.'s license?

NPPES lists Montana license number 83193, 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.

How much does Niels R. Harden, M.D. prescribe under Medicare Part D?

In 2024, Niels R. Harden, M.D. had 111 Medicare Part D claims for 92 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.