Quick answers
- Does Diana L. Ortiz-Castro accept Medicare assignment?
- Yes. Medicare's clinician data says Diana L. Ortiz-Castro 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 Diana L. Ortiz-Castro's NPI number?
- 1285828509. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Diana L. Ortiz-Castro works
Medicare's Facility Affiliation Data lists Diana L. Ortiz-Castro 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.
- Lac/Harbor-Ucla Medical CenterTorrance, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050376
Practice locations
Addresses where Diana L. Ortiz-Castro is enrolled with Medicare (CMS data updated October 2, 2026).
- 1108 N Oleander AveCompton, CA 90222 (310) 763‑2244
- 1325 Broad AveWilmington, CA 90744 (562) 753‑2315
Group practices
Medicare enrollment lists Diana L. Ortiz-Castro as a member of this group (CMS data updated October 2, 2026).
- County of Los Angeles397 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Compton
Clinicians with the same Medicare primary specialty in Compton, CA — not a recommendation.
Other clinicians in County of Los Angeles
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 1997 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285828509 |
| 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