Quick answers
- Which hospitals does Matthew Maunu work at?
- Medicare's official clinician data lists Matthew Maunu at 3 hospitals: Barrett Hospital & Healthcare, McKenzie County Healthcare Systems Inc and St Peters Health. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Matthew Maunu see patients?
- Medicare's clinician data lists 5 practice locations, including Williston, ND and Watford City, ND. Call before your visit to confirm the address.
- What is Matthew Maunu's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Matthew Maunu accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew Maunu 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 Matthew Maunu?
- (701) 577-6337, as listed in official Medicare / NPI Registry data.
- What is Matthew Maunu's NPI number?
- 1881684546. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Matthew Maunu works
Medicare's Facility Affiliation Data lists Matthew Maunu at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Barrett Hospital & HealthcareDillon, MT · Critical Access Hospital · CCN 271318
- McKenzie County Healthcare Systems IncWatford City, ND · Critical Access Hospital · CCN 351302
- St Peters HealthHelena, MT · Acute Care Hospital · CCN 270003
Practice locations
Addresses where Matthew Maunu is enrolled with Medicare (CMS data updated 2026-10-02).
- 3 4th St EWilliston, ND 58801 (701) 577‑6337
- 3 4th St E, Suite 2Williston, ND 58801 (701) 577‑6337
- 509 16th St NEWatford City, ND 58854 (701) 444‑7814
- 509 16th St NE, Suite 3Watford City, ND 58854 (701) 444‑7814
- 709 4th Ave NEWatford City, ND 58854 (701) 842‑3000
Group practices
Medicare enrollment lists Matthew Maunu as a member of this group (CMS data updated 2026-10-02).
- McKenzie County Healthcare Systems Inc66 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Williston
Clinicians with the same Medicare primary specialty in Williston, ND — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Minnesota Medical School |
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1881684546 |
| 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