Registry data as of Aug 27, 2026

Tammy Chambers, FNP

Family Nurse Practitioner · Bozeman, MT

Tammy Chambers, FNP is a family nurse practitioner with a practice address in Bozeman, Montana, and NPI 1407151574, issued on Jan 20, 2011. Check the license (Montana 100765, as entered in NPPES) with the Montana board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1407151574
Name
Tammy Chambers
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
100765 MT
Self-reported in NPPES; status is on the state search
Practice location
1006 W Main St, Bozeman, MT 59715
Phone
(406) 414-4800
Enumerated
Jan 20, 2011
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 1006 W Main St

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

  1. Kristen Anderson, PAMedical Physician Assistant1962891036
  2. Mary Boscamp, PA-CMedical Physician Assistant1992743330
  3. Leslie Carlson, NPFamily Nurse Practitioner1639130560
  4. Nyla Chandler, FNPFamily Nurse Practitioner1417926148
  5. Jenny Combs, MDPsychiatry Physician1497383210
  6. Justine Derousse, PA-CMedical Physician Assistant1609843168

Verify Tammy Chambers in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Montana board licenses this profession
    Search for license 100765
    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
Find 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.

84% fewer Medicare Part D claims than the average family nurse practitioner in 2024

204 Medicare Part D claims for 159 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Tammy Chambers204
  2. Specialty average1,305

Most prescribed

  1. Azithromycin19 claims
  2. Cefuroxime18 claims
  3. Cefdinir17 claims
  4. Prednisone16 claims
  5. Doxycycline Hyclate13 claims
  6. Paxlovid12 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.

3 hospitals and group practices

  1. Bozeman Health Deaconess HospitalBelgrade, MT · Acute Care Hospitals4 of 5 stars
  2. Bozeman Health Convenience Care LLCBozeman, MT
  3. Bozeman Health Urgent CareBozeman, MT

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.

78 family nurse practitioner records list a practice address in Bozeman

They are 78 of the 2,433 NPPES records with a practice address in Bozeman, and 815 family nurse practitioner records in Montana.

Other family nurse practitioner records in Montana

  1. Ellen Absher, FNP-CBillings, MT1609709997
  2. Lorraine Ackerman, FNPColumbus, MT1457301830
  3. Brooke Adams, APRNWhitefish, MT1790258358
  4. Marybeth Adams, NPBelgrade, MT1093814923
  5. Kara Addison, DNP-CHelena, MT1295090983
  6. Maggie Ahmad, CRNPKalispell, MT1396253704
  7. Betsy Akin, FNPGreat Falls, MT1720525991
  8. Catherine Akin, NPLivingston, MT1124738166
  9. Patricia Alderson, FNPHavre, MT1831647619
  10. Jacquelyn Alexander, FNPWhitefish, MT1427579473

Common questions

What is Tammy Chambers, FNP's NPI number?

Tammy Chambers, FNP's National Provider Identifier (NPI) is 1407151574, issued on Jan 20, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Tammy Chambers, FNP located?

The NPPES record lists a practice address at 1006 W Main St, Bozeman, MT, 59715. Phone: (406) 414-4800. Providers update this record themselves, so call before visiting.

How can I verify Tammy Chambers, FNP's license?

NPPES lists Montana license number 100765, as entered by the provider. Search the Montana board that licenses this profession; the NPPES record confirms identity only.

How much does Tammy Chambers, FNP prescribe under Medicare Part D?

In 2024, Tammy Chambers, FNP had 204 Medicare Part D claims for 159 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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) 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 27, 2026.