Tammy Chambers, FNP
NPI 1407151574 · Family Nurse Practitioner · Bozeman, MT
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammy Chambers, FNP is a Family Nurse Practitioner provider in Bozeman, MT (NPI 1407151574).
Provider details
- NPI number
- 1407151574
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 100765 (MT)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
288 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 101 | $76 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 74 | $93 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 39 | $107 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 30 | $50 |
| Detection Test By Multiplex Amplified Probe Technique for Severe Acute Respiratory Syndrome Coronavirus 2 (sars-Cov-2) (covid-19) and Influenza Virus Types a and B87636 | 19 | $140 |
| Automated Urinalysis Test |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 19 | 19 |
| Cefuroxime Axetilbrand: Cefuroxime | 18 | 17 |
| Cefdinir | 17 | 16 |
| Prednisone | 16 | 16 |
| Doxycycline Hyclate | 13 | 13 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 12 | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (3)
- 206 Alaska Frontage RdBelgrade, MT 59714-7909Phone: (406) 414-3334
- 100 Beaverhead TrailBig Sky, MT 59716-0000Phone: (406) 995-6650
- 1805 Oak St Ste 3Bozeman, MT 59715-8847Phone: (406) 414-4890
Registry dates
- Enumerated
- 2011-01-20
- Last updated
- 2025-04-09
- Certified
- 2025-04-09
Frequently asked questions
- What is Tammy Chambers's NPI number?
- Tammy Chambers's National Provider Identifier (NPI) is 1407151574, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Chambers's specialty?
- Tammy Chambers is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tammy Chambers located?
- Tammy Chambers's practice location on file with NPPES is 1006 W Main St, Bozeman, MT 59715-3219.
- What is Tammy Chambers's phone number?
- The practice phone number listed in the NPPES registry for Tammy Chambers is (406) 414-4800.
- Does Tammy Chambers accept Medicare?
- Tammy Chambers is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammy Chambers's NPI active?
- Yes — Tammy Chambers's NPI (1407151574) is active in the NPPES registry as of the last update on 2025-04-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.