Quick answers
- Which hospitals does Andrew Chon work at?
- Medicare's official clinician data lists Andrew Chon at 4 hospitals: Kaiser Foundation Hospital-Moreno Valley, Memorialcare Orange Coast Medical Center, St Bernardine Medical Center and St Mary Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Andrew Chon see patients?
- Medicare's clinician data lists 3 practice locations, including Santa Ana, CA, Long Beach, CA and Moreno Valley, CA. Call before your visit to confirm the address.
- What is Andrew Chon's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Andrew Chon accept Medicare assignment?
- Yes. Medicare's clinician data says Andrew Chon 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 Andrew Chon?
- (714) 835-3555, as listed in official Medicare / NPI Registry data.
- What is Andrew Chon's NPI number?
- 1528563905. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Andrew Chon works
Medicare's Facility Affiliation Data lists Andrew Chon at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kaiser Foundation Hospital-Moreno ValleyMoreno Valley, CA · Acute Care Hospital · CCN 050765
- Memorialcare Orange Coast Medical CenterFountain Valley, CA · Acute Care Hospital · CCN 050678
- St Bernardine Medical CenterSan Bernardino, CA · Acute Care Hospital · CCN 050129
- St Mary Medical CenterLong Beach, CA · Acute Care Hospital · CCN 050191
Practice locations
Addresses where Andrew Chon is enrolled with Medicare (CMS data updated 2026-10-02).
- 1001 N Tustin AveSanta Ana, CA 92705 (714) 835‑3555
- 1050 Linden AveLong Beach, CA 90813 (562) 491‑9000
- 27300 Iris AveMoreno Valley, CA 92555 (651) 243‑0811
Group practices
Medicare enrollment lists Andrew Chon as a member of this group (CMS data updated 2026-10-02).
- Cep America - California1,292 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Santa Ana
Clinicians with the same Medicare primary specialty in Santa Ana, CA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1528563905 |
| 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