Susan Petersen, MD
NPI 1861434037 · Family Medicine Physician · Billings, MT
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Susan Petersen, MD is a Family Medicine Physician provider in Billings, MT (NPI 1861434037).
Provider details
- NPI number
- 1861434037
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 8399 (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
1,286 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 | 545 | $73 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 259 | $16 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 233 | $42 |
| Administration of Influenza Virus VaccineG0008 | 64 | $32 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 51 | $66 |
| Automated Urinalysis Test |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 154 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 634 | 153 |
| Atorvastatin Calcium | 372 | 106 |
| Potassium Chloride | 324 | 88 |
| Losartan Potassium | 297 | 85 |
| Amlodipine Besylate | 280 | 78 |
| Lisinopril | 243 | 66 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-12
- Last updated
- 2014-01-09
Frequently asked questions
- What is Susan Petersen's NPI number?
- Susan Petersen's National Provider Identifier (NPI) is 1861434037, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Susan Petersen's specialty?
- Susan Petersen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Susan Petersen located?
- Susan Petersen's practice location on file with NPPES is 2019 Broadwater Ave, Billings, MT 59102-4810.
- What is Susan Petersen's phone number?
- The practice phone number listed in the NPPES registry for Susan Petersen is (406) 237-5200.
- Does Susan Petersen accept Medicare?
- Susan Petersen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Susan Petersen's NPI active?
- Yes — Susan Petersen's NPI (1861434037) is active in the NPPES registry as of the last update on 2014-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.