Quick answers
- Which hospitals does Mariah Kellam work at?
- Medicare's official clinician data lists Mariah Kellam at 4 hospitals: Benefis Hospitals Inc, Billings Clinic Hospital, Great Falls Clinic Hospital and Northern Montana Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mariah Kellam see patients?
- Medicare's clinician data lists 1 practice location in Chinook, MT. Call before your visit to confirm the address.
- What is Mariah Kellam's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Mariah Kellam accept Medicare assignment?
- Yes. Medicare's clinician data says Mariah Kellam 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 Mariah Kellam?
- (406) 357-2294, as listed in official Medicare / NPI Registry data.
- What is Mariah Kellam's NPI number?
- 1083230304. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mariah Kellam works
Medicare's Facility Affiliation Data lists Mariah Kellam 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
- Billings Clinic HospitalBillings, MT · Acute Care Hospital · CCN 270004
- Great Falls Clinic HospitalGreat Falls, MT · Acute Care Hospital · CCN 270086
- Northern Montana HospitalHavre, MT · Critical Access Hospital · CCN 271348
Practice locations
Addresses where Mariah Kellam is enrolled with Medicare (CMS data updated 2026-10-02).
- 419 Pennsylvania StChinook, MT 59523 (406) 357‑2294
Group practices
Medicare enrollment lists Mariah Kellam as a member of this group (CMS data updated 2026-10-02).
- Bighorn Valley Health Center Incorporated79 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Chinook
Clinicians with the same Medicare primary specialty in Chinook, MT — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083230304 |
| 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