Maren Dunn, DO
NPI 1376538512 · Family Medicine Physician · Big Sky, MT
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maren Dunn, DO is a Family Medicine Physician provider in Big Sky, MT (NPI 1376538512).
Provider details
- NPI number
- 1376538512
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- Yes
- License
- 11561 (MT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
580 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 193 | $126 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 167 | $88 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 55 | $124 |
| Administration of Influenza Virus VaccineG0008 | 50 | $24 |
| Admn Sarscov2 Vacc 1 Dose90480 | 46 | $35 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 20 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 49 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 200 | 59 |
| Lisinopril | 108 | 29 |
| Levothyroxine Sodium | 96 | 28 |
| Losartan Potassium | 83 | 28 |
| Gabapentin | 73 | 19 |
| Amlodipine Besylate | 71 | 23 |
| Rosuvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-14
- Last updated
- 2025-07-09
- Certified
- 2025-07-09
Frequently asked questions
- What is Maren Dunn's NPI number?
- Maren Dunn's National Provider Identifier (NPI) is 1376538512, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maren Dunn's specialty?
- Maren Dunn is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Maren Dunn located?
- Maren Dunn's practice location on file with NPPES is 334 Town Center Ave, Big Sky, MT 59716-1713.
- What is Maren Dunn's phone number?
- The practice phone number listed in the NPPES registry for Maren Dunn is (406) 995-6995.
- Does Maren Dunn accept Medicare?
- Maren Dunn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maren Dunn's NPI active?
- Yes — Maren Dunn's NPI (1376538512) is active in the NPPES registry as of the last update on 2025-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.