Maria Rennaker, PA
NPI 1215521331 · Physician Assistant · Darby, MT
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Rennaker, PA is a Physician Assistant provider in Darby, MT (NPI 1215521331).
Provider details
- NPI number
- 1215521331
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- 91830 (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 tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 128 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 288 | 85 |
| Levothyroxine Sodium | 274 | 68 |
| Losartan Potassium | 252 | 70 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 223 | 39 |
| Omeprazole | 215 | 63 |
| Amlodipine Besylate | 173 | 47 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-03-01
- Last updated
- 2023-07-03
- Certified
- 2023-07-03
Frequently asked questions
- What is Maria Rennaker's NPI number?
- Maria Rennaker's National Provider Identifier (NPI) is 1215521331, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Rennaker's specialty?
- Maria Rennaker is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Maria Rennaker located?
- Maria Rennaker's practice location on file with NPPES is 3334 Dvn Ln, Darby, MT 59829-9736.
- What is Maria Rennaker's phone number?
- The practice phone number listed in the NPPES registry for Maria Rennaker is (406) 375-4142.
- Does Maria Rennaker accept Medicare?
- Maria Rennaker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Rennaker's NPI active?
- Yes — Maria Rennaker's NPI (1215521331) is active in the NPPES registry as of the last update on 2023-07-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.