Quick answers
- Does Marianna A. Tolhurst accept Medicare assignment?
- Yes. Medicare's clinician data says Marianna A. Tolhurst accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Marianna A. Tolhurst's NPI number?
- 1821808155. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Marianna A. Tolhurst works
Medicare's Facility Affiliation Data lists Marianna A. Tolhurst at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Memorial Hospital Sweetwater CountyRock Springs, WY · Critical Access Hospital · Emergency services: listed by Medicare · CCN 531318
Practice locations
Addresses where Marianna A. Tolhurst is enrolled with Medicare (CMS data updated October 2, 2026).
- 1180 College DrRock Springs, WY 82901 (307) 352‑8125
- 770 S Washington St, Suite BAfton, WY 83110 (888) 253‑6598
Group practices
Medicare enrollment lists Marianna A. Tolhurst as a member of these groups (CMS data updated October 2, 2026).
- Memorial Hospital of Sweetwater County67 clinicians in the group
- PPM Wyoming LLC2 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Rock Springs
Clinicians with the same Medicare primary specialty in Rock Springs, WY — not a recommendation.
Other clinicians in Memorial Hospital of Sweetwater County
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2025 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821808155 |
| 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 October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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