Tammy Jean Chambers, FNP
Family Nurse Practitioner · Bozeman, MT
Tammy Jean 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.
- Name
- Tammy Jean 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
- Record last updated
- Apr 9, 2025
- Medicare enrollment
- Enrolled (PECOS I20110922000004); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 815 in Montana → Look up another NPI →
Also registered at 1006 W Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mary Boscamp, PA-CMedical Physician Assistant1992743330
- Leslie Carlson, NPFamily Nurse Practitioner1639130560
- Nyla Chandler, FNPFamily Nurse Practitioner1417926148
- Jenny Combs, MDPsychiatry Physician1497383210
- Justine Derousse, PA-CMedical Physician Assistant1609843168
Verify Tammy Jean Chambers in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Montana board licenses this profession
Search for license 100765Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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.
Most prescribed
- Azithromycin19 claims
- Cefuroxime18 claims
- Cefdinir17 claims
- Prednisone16 claims
- Doxycycline Hyclate13 claims
- 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
- Bozeman Health Deaconess HospitalBelgrade, MT · Acute Care Hospitals4 of 5 stars
- Bozeman Health Convenience Care LLCBozeman, MT
- 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.
Tammy Jean Chambers among 815 family nurse practitioner records in Montana
Tammy Jean Chambers, FNP is one of 815 family nurse practitioner records with a practice address in Montana. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 28% of them.
- NPI issued2011 · 28% of these records are older, 70% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2010 · median 2018 among the 505 with a school on file
- Record last updated2025 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Montana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
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.
All 815 in Montana → Every provider in Bozeman → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Cynthia Bacon, NPBozeman, MT 597151821013160
- Leslie Carlson, NPBozeman, MT 597151639130560
- Nyla Chandler, FNPBozeman, MT 597151417926148
- Mary Cook, ARNPBozeman, MT 597151861639619
- Barbara Eckstein, NPBozeman, MT 597151134334204
- Kristi King, FNPBozeman, MT 597151841525607
- Margaret Marsh, CFNPBozeman, MT 597151851569438
- Anna McCracken, F.N.P.Bozeman, MT 597151164554184
Common questions
What is Tammy Jean Chambers, FNP's NPI number?
Tammy Jean 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 Jean 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 Jean 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 Jean Chambers, FNP prescribe under Medicare Part D?
In 2024, Tammy Jean 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), 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.