Quick answers
- Which hospitals does Mariah E. Peterson work at?
- Medicare's official clinician data lists Mariah E. Peterson at 3 hospitals: Avera Flandreau Hospital - CAH, Avera McKennan Hospital & University Health Center and Brookings Health System. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mariah E. Peterson see patients?
- Medicare's clinician data lists 3 practice locations, including Elkton, SD and Flandreau, SD. Call before your visit to confirm the address.
- What is Mariah E. Peterson's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Mariah E. Peterson accept Medicare assignment?
- Yes. Medicare's clinician data says Mariah E. 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 Mariah E. Peterson?
- (605) 542-7701, as listed in official Medicare / NPI Registry data.
- What is Mariah E. Peterson's NPI number?
- 1245019694. 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 E. Peterson works
Medicare's Facility Affiliation Data lists Mariah E. Peterson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Avera Flandreau Hospital - CAHFlandreau, SD · Critical Access Hospital · CCN 431310
- Avera McKennan Hospital & University Health CenterSioux Falls, SD · Acute Care Hospital · CCN 430016
- Brookings Health SystemBrookings, SD · Acute Care Hospital · CCN 430008
Practice locations
Addresses where Mariah E. Peterson is enrolled with Medicare (CMS data updated 2026-10-02).
- 203 N Elk StElkton, SD 57026 (605) 542‑7701
- 212 N Prairie StFlandreau, SD 57028
- 214 N Prairie StFlandreau, SD 57028 (605) 997‑2433
Group practices
Medicare enrollment lists Mariah E. Peterson as a member of this group (CMS data updated 2026-10-02).
- Avera McKennan959 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in South Dakota
Clinicians with the same Medicare primary specialty in South Dakota — 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) | 1245019694 |
| 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