Quick answers
- Which hospitals does Sienna Tanner work at?
- Medicare's official clinician data lists Sienna Tanner at 2 hospitals: Kootenai Health and Prov Sacred HRT Med Ctr & Childs Hosp.. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sienna Tanner see patients?
- Medicare's clinician data lists 3 practice locations, including Spokane, WA, Orofino, ID and Coeur D Alene, ID. Call before your visit to confirm the address.
- What is Sienna Tanner's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Sienna Tanner accept Medicare assignment?
- Yes. Medicare's clinician data says Sienna Tanner 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 Sienna Tanner?
- (877) 346-2211, as listed in official Medicare / NPI Registry data.
- What is Sienna Tanner's NPI number?
- 1275211336. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sienna Tanner works
Medicare's Facility Affiliation Data lists Sienna Tanner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kootenai HealthCoeur D'alene, ID · Acute Care Hospital · CCN 130049
- Prov Sacred HRT Med Ctr & Childs Hosp.Spokane, WA · Acute Care Hospital · CCN 500054
Practice locations
Addresses where Sienna Tanner is enrolled with Medicare (CMS data updated 2026-10-02).
- 101 W 8th AveSpokane, WA 99204 (877) 346‑2211
- 1055 Riverside AveOrofino, ID 83544 (208) 476‑5777
- 2003 Kootenai Health WayCoeur D Alene, ID 83814
Group practices
Medicare enrollment lists Sienna Tanner as a member of these groups (CMS data updated 2026-10-02).
- Kootenai Health Inc399 clinicians in the group
- Spokane Emergency Physicians PS45 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Spokane
Clinicians with the same Medicare primary specialty in Spokane, WA — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Medical school | Washington State University Elson S Floyd College Of Medicine |
| Graduation year | 2023 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1275211336 |
| 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