Quick answers
- Which hospitals does Sandra Isnasious work at?
- Medicare's official clinician data lists Sandra Isnasious at 2 hospitals: PIH Health Hospital-Whittier and Torrance Memorial Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sandra Isnasious see patients?
- Medicare's clinician data lists 4 practice locations, including Downey, CA, Whittier, CA and El Segundo, CA. Call before your visit to confirm the address.
- What is Sandra Isnasious's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Sandra Isnasious accept Medicare assignment?
- Yes. Medicare's clinician data says Sandra Isnasious 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 Sandra Isnasious?
- (562) 904-5000, as listed in official Medicare / NPI Registry data.
- What is Sandra Isnasious's NPI number?
- 1174908685. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sandra Isnasious works
Medicare's Facility Affiliation Data lists Sandra Isnasious at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- PIH Health Hospital-WhittierWhittier, CA · Acute Care Hospital · CCN 050169
- Torrance Memorial Medical CenterTorrance, CA · Acute Care Hospital · CCN 050351
Practice locations
Addresses where Sandra Isnasious is enrolled with Medicare (CMS data updated 2026-10-02).
- 11500 Brookshire AveDowney, CA 90241 (562) 904‑5000
- 12401 Washington BlvdWhittier, CA 90602 (562) 698‑0811
- 2110 E El Segundo Blvd, Suite 100El Segundo, CA 90245 (310) 517‑7010
- 2900 Lomita BlvdTorrance, CA 90505 (310) 257‑7260
Group practices
Medicare enrollment lists Sandra Isnasious as a member of these groups (CMS data updated 2026-10-02).
- Torrance Health Association Inc299 clinicians in the group
- Intercommunity Emergency Medical Group67 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Downey
Clinicians with the same Medicare primary specialty in Downey, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 2015 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1174908685 |
| 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