NPPES file of Aug 9, 2026

Andrew A. Barber, D.O.

Emergency Medicine Physician · Great Falls, MT

Andrew A. Barber, D.O. is an emergency medicine physician with a practice address in Great Falls, Montana, and NPI 1588776355, issued on Aug 31, 2006. Check the license (Montana 10821, 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
1588776355
Name
Andrew A. Barber
Credential
D.O.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
10821 MT
Self-reported in NPPES; status is on the state search
Practice location
1101 26TH St S, Great Falls, MT 59405
Phone
(406) 455-5200
Enumerated
Aug 31, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20130807000272); accepts Medicare assignment
Medical or professional school
At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 2001
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 1101 26TH St S

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

  1. Joie Abner, DOEmergency Medicine Physician1881036119
  2. Michael Adams, MDEmergency Medicine Physician1770576555
  3. Graig Aders, M.D.Psychiatry Physician1265758734
  4. Khansa AliStudent in an Organized Health Care Education/Training Program1497632277
  5. Jeffrey Allen, CRNACertified Registered Nurse Anesthetist1245256916
  6. Batool Alnahar, MBBSStudent in an Organized Health Care Education/Training Program1447137310

Verify Andrew A. Barber 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 10821
    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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36% fewer Medicare Part D claims than the average emergency medicine physician in 2024

145 Medicare Part D claims for 100 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 16 claims were for opioids.

  1. Andrew Barber145
  2. Specialty average226

Most prescribed

  1. Cephalexin23 claims
  2. Hydrocodone-Acetaminophen14 claims
  3. Naproxen12 claims
  4. Prednisone12 claims
  5. Ondansetron Hcl11 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. Emergency Physicians Integrated Care LLCSalt Lake City, UT

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

Andrew A. Barber among 243 emergency medicine physician records in Montana

Andrew A. Barber, D.O. 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 2006, is newer than 1% of them.

  • NPI issued2006 · 1% of these records are older, 55% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2001 · median 2009 among the 144 with a school on file
  • Record last updated2007 · 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).

29 emergency medicine physician records list a practice address in Great Falls

They are 29 of the 1,798 NPPES records with a practice address in Great Falls, and 243 emergency medicine physician records in Montana.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Michael Adams, MDGreat Falls, MT 594051770576555
  2. Nicholas Burnham, DOGreat Falls, MT 594051962795559
  3. Philip Donahue, FNPGreat Falls, MT 594051770691214
  4. Gerald Geiszler, M.D.Great Falls, MT 594051841344132
  5. Robert Harper, D.O.Great Falls, MT 594051649382581
  6. Michael Jasumback, MDGreat Falls, MT 594051114947843
  7. Justin MadillGreat Falls, MT 594051578534715
  8. Helenka Marcinek, MDGreat Falls, MT 594051740385053

Common questions

What is Andrew A. Barber, D.O.'s NPI number?

Andrew A. Barber, D.O.'s National Provider Identifier (NPI) is 1588776355, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Andrew A. Barber, D.O. located?

The NPPES record lists a practice address at 1101 26TH St S, Great Falls, MT, 59405. Phone: (406) 455-5200. Providers update this record themselves, so call before visiting.

How can I verify Andrew A. Barber, D.O.'s license?

NPPES lists Montana license number 10821, 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 Andrew A. Barber, D.O. prescribe under Medicare Part D?

In 2024, Andrew A. Barber, D.O. had 145 Medicare Part D claims for 100 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.