Registry data as of Aug 27, 2026

Susan Petersen, MD

Family Medicine Physician · Billings, MT

Susan Petersen, MD is a family medicine physician with a practice address in Billings, Montana, and NPI 1861434037, issued on Jun 12, 2006. Check the license (Montana 8399, as entered in NPPES) on the Montana Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1861434037
Name
Susan Petersen
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
8399 MT
Self-reported in NPPES; status is on the state search
Practice location
2019 Broadwater Ave, Billings, MT 59102
Phone
(406) 237-5200
Enumerated
Jun 12, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2019 Broadwater Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Steve Bents, PACPhysician Assistant1740224450
  2. Doris BiersdorfRegistered Dietitian1407005309
  3. Claire Buckingham, NPNurse Practitioner1598230724
  4. Jon Bullman, MDFamily Medicine Physician1255373411
  5. Taylor Chaffin, FNPNurse Practitioner1073229787
  6. Alexander Garner, PAPhysician Assistant1942806153

Verify Susan Petersen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMontana Board of Medical Examiners
    Search for license 8399
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the Montana license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

2.9 times the Medicare Part D claims of the average family medicine physician in 2024

10,213 Medicare Part D claims for 572 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 640 claims were for opioids.

  1. Susan Petersen10,213
  2. Specialty average3,519

Most prescribed

  1. Levothyroxine Sodium634 claims
  2. Atorvastatin Calcium372 claims
  3. Potassium Chloride324 claims
  4. Losartan Potassium297 claims
  5. Amlodipine Besylate280 claims
  6. Lisinopril243 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.

One hospital or facility affiliation

  1. Scl Health Medical Group - Billings LLCBillings, MT

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

107 family medicine physician records list a Billings practice address

They are 107 of the 4,035 NPPES records with a Billings practice address, and 766 family medicine physician records in Montana.

Other family medicine physician records in Montana

  1. Marc Adams, MDShelby, MT1265449482
  2. Dale Agner, M.D.Billings, MT1861486490
  3. Cynthia Alarcon, PA-CHelena, MT1386981686
  4. Brandon Allen, MDEnnis, MT1215499421
  5. Hans Amen, D.O.Malmstrom Afb, MT1538426507
  6. Beth Ammons, MDMissoula, MT1780623926
  7. Robert Amrine, MDMissoula, MT1366640484
  8. Bjorn Anderson, DOStevensville, MT1770146037
  9. Jonathan Anderson, MDKalispell, MT1356397533
  10. Leah Anderson, M.D.Bozeman, MT1851504195

Common questions

What is Susan Petersen, MD's NPI number?

Susan Petersen, MD's National Provider Identifier (NPI) is 1861434037, issued on Jun 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Susan Petersen, MD located?

The NPPES record lists a practice address at 2019 Broadwater Ave, Billings, MT, 59102. Phone: (406) 237-5200. Providers update this record themselves, so call before visiting.

How can I verify Susan Petersen, MD's license?

NPPES lists Montana license number 8399, as entered by the provider. Search the Montana Board of Medical Examiners at https://ebiz.mt.gov/POL/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Susan Petersen, MD prescribe under Medicare Part D?

In 2024, Susan Petersen, MD had 10,213 Medicare Part D claims for 572 beneficiaries; the average among family medicine physician prescribers was 3,519. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.