Quick answers
- Does Diana I. Sandoval-Cortez accept Medicare assignment?
- Yes. Medicare's clinician data says Diana I. Sandoval-Cortez 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.
- How many Medicare patients does Diana I. Sandoval-Cortez see?
- In 2024, CMS data shows 12 Original Medicare patients and 21 services for Diana I. Sandoval-Cortez. This counts Original Medicare only and measures volume, not quality.
- What is Diana I. Sandoval-Cortez's NPI number?
- 1992737076. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Diana I. Sandoval-Cortez, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 12 |
|---|---|
| Services billed to Medicare | 21 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Hospitals where Diana I. Sandoval-Cortez works
Medicare's Facility Affiliation Data lists Diana I. Sandoval-Cortez 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.
- Scripps Mercy HospitalSan Diego, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050077
Practice locations
Addresses where Diana I. Sandoval-Cortez is enrolled with Medicare (CMS data updated October 2, 2026).
- 3900 Alamo StSimi Valley, CA 93063 (805) 582‑0100
- 4004 Beyer BlvdSan Ysidro, CA 92173 (619) 428‑4463
- 4050 Beyer BlvdSan Ysidro, CA 92173 (619) 662‑4100
Group practices
Medicare enrollment lists Diana I. Sandoval-Cortez as a member of these groups (CMS data updated October 2, 2026).
- Southern California Permanente Medical Group11,293 clinicians in the group
- Centro de Salud de la Comunidad de San Ysidro, Inc.297 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Simi Valley
Clinicians with the same Medicare primary specialty in Simi Valley, CA — not a recommendation.
Other clinicians in Southern California Permanente Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992737076 |
| 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
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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