Quick answers
- Does Monica Santamaria-Fries accept Medicare assignment?
- Yes. Medicare's clinician data says Monica Santamaria-Fries 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 Monica Santamaria-Fries's NPI number?
- 1225102536. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Monica Santamaria-Fries works
Medicare's Facility Affiliation Data lists Monica Santamaria-Fries 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.
- El Camino HealthMountain View, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050308
Practice locations
Addresses where Monica Santamaria-Fries is enrolled with Medicare (CMS data updated October 2, 2026).
- 2500 Grant RdMountain View, CA 94040 (650) 616‑2951
- 815 Pollard RdLos Gatos, CA 95032 (650) 616‑2951
Group practices
Medicare enrollment lists Monica Santamaria-Fries as a member of this group (CMS data updated October 2, 2026).
- Peninsula Pathologists Medical Group Inc17 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Mountain View
Clinicians with the same Medicare primary specialty in Mountain View, CA — not a recommendation.
Other clinicians in Peninsula Pathologists Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1981 (45 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225102536 |
| 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