Michael P. Gruber, MD
Critical Care Medicine (Internal Medicine) Physician · Bozeman, MT
Michael P. Gruber, MD is a critical care medicine (internal medicine) physician with a practice address in Bozeman, Montana, and NPI 1578671699, issued on Aug 28, 2006. Check the license (Montana 159933, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Michael P. Gruber
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License numbers
- 159933 MT
40529 CO
Self-reported in NPPES; status is on the state search - Practice location
- 915 Highland Blvd, Bozeman, MT 59715
- Phone
- (406) 414-5000
- Enumerated
- Aug 28, 2006
- Record last updated
- Nov 6, 2025
- Medicaid ID
- 37132547 CO
- Medicare enrollment
- Enrolled (PECOS I20251120001565); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 9 in Montana → Look up another NPI →
Also registered at 915 Highland Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Michael P. Gruber in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMontana Board of Medical Examiners
Search for license 159933Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average critical care medicine (internal medicine) physician in 2024
293 Medicare Part D claims for 57 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 54% of claims.
Most prescribed
- Albuterol Sulfate Hfa55 claims
- Trelegy Ellipta35 claims
- Montelukast Sodium28 claims
- Symbicort20 claims
- Breo Ellipta17 claims
- Prednisone15 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 77.9 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- 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.
Critical Care Medicine (Internal Medicine) Physician providers in Montana
There are 9 critical care medicine (internal medicine) physician records in Montana.
All 9 in Montana → Every provider in Bozeman → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Janet Lee, M.D.Bozeman, MT 597181124327762
- Brian Davis, M.D.Missoula, MT 598081205913506
- Justinn Lahaye, MDGreat Falls, MT 594051376003400
- Navpreet Sidhu, M.D.Great Falls, MT 594051336303304
- Holly Strong, M.D.Great Falls, MT 594051548310998
- Scott Deppe, M.D.Great Falls, MT 594041437131422
- Bruno Ferreira RodriguesBillings, MT 591011134570526
- Marjorie Tevlin, M.D.Billings, MT 591011790734382
Common questions
What is Michael P. Gruber, MD's NPI number?
Michael P. Gruber, MD's National Provider Identifier (NPI) is 1578671699, issued on Aug 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael P. Gruber, MD 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 Michael P. Gruber, MD's license?
NPPES lists Montana license number 159933, 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 Michael P. Gruber, MD prescribe under Medicare Part D?
In 2024, Michael P. Gruber, MD had 293 Medicare Part D claims for 57 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. Part D covers Medicare prescriptions only.
What is Michael P. Gruber, MD's MIPS final score?
The 2023 MIPS final score is 77.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.