Quick answers
- Which hospitals does Mark P. Peterson work at?
- Medicare's official clinician data lists Mark P. Peterson at 3 hospitals: Benefis Hospitals Inc, Hilo Benioff Medical Center and The Monroe Clinic. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mark P. Peterson see patients?
- Medicare's clinician data lists 3 practice locations, including Great Falls, MT, Hilo, HI and Monroe, WI. Call before your visit to confirm the address.
- What is Mark P. Peterson's specialty?
- Medicare lists Anesthesiology as the primary specialty, and also Pain Management.
- Does Mark P. Peterson accept Medicare assignment?
- Yes. Medicare's clinician data says Mark P. Peterson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Mark P. Peterson?
- (406) 455-5000, as listed in official Medicare / NPI Registry data.
- What is Mark P. Peterson's NPI number?
- 1841391000. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mark P. Peterson works
Medicare's Facility Affiliation Data lists Mark P. Peterson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Benefis Hospitals IncGreat Falls, MT · Acute Care Hospital · CCN 270012
- Hilo Benioff Medical CenterHilo, HI · Acute Care Hospital · CCN 120005
- The Monroe ClinicMonroe, WI · Acute Care Hospital · CCN 520028
Practice locations
Addresses where Mark P. Peterson is enrolled with Medicare (CMS data updated 2026-10-02).
- 1101 26th St SGreat Falls, MT 59405 (406) 455‑5000
- 1190 Waianuenue AveHilo, HI 96720 (808) 932‑3000
- 515 22nd AveMonroe, WI 53566 (608) 324‑2000
Group practices
Medicare enrollment lists Mark P. Peterson as a member of these groups (CMS data updated 2026-10-02).
- Benefis Hospitals Inc384 clinicians in the group
- The Monroe Clinic, Inc.199 clinicians in the group
- Hilo Benioff Medical Center129 clinicians in the group
Specialties
- Anesthesiologyprimary
- Pain Managementalso
Other anesthesiologists in Great Falls
Clinicians with the same Medicare primary specialty in Great Falls, MT — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Minnesota Medical School |
| Graduation year | 1978 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1841391000 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians