Quick answers
- Does Sophia L. Ambruso accept Medicare assignment?
- Yes. Medicare's clinician data says Sophia L. Ambruso 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 Sophia L. Ambruso's NPI number?
- 1518250174. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sophia L. Ambruso works
Medicare's Facility Affiliation Data lists Sophia L. Ambruso 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.
- Saint Alphonsus Medical Center - NampaNampa, ID · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 130013
- Saint Alphonsus Regional Medical CenterBoise, ID · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 130007
- St Luke's Nampa Medical CenterNampa, ID · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 130071
- St Luke's Regional Medical CenterBoise, ID · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 130006
- Wallowa Memorial HospitalEnterprise, OR · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 381306
Practice locations
Addresses where Sophia L. Ambruso is enrolled with Medicare (CMS data updated October 2, 2026).
- 515 E Ln SOntario, OR 97914 (208) 501‑8955
- 5610 W Gage St, Suite ABoise, ID 83706 (208) 367‑3370
Group practices
Medicare enrollment lists Sophia L. Ambruso as a member of this group (CMS data updated October 2, 2026).
- St Clair Specialty Physicians PC36 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Oregon
Clinicians with the same Medicare primary specialty in Oregon — not a recommendation.
Other clinicians in St Clair Specialty Physicians PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Kansas City University Of Med & Biosciences, College Of Osteo Med |
| Graduation year | 2011 (15 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518250174 |
| 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