Quick answers
- Which hospitals does Thomas B. Choi work at?
- Medicare's official clinician data lists Thomas B. Choi at 1 hospital: PIH Health Downey Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Thomas B. Choi see patients?
- Medicare's clinician data lists 1 practice location in Downey, CA. Call before your visit to confirm the address.
- What is Thomas B. Choi's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Thomas B. Choi accept Medicare assignment?
- Yes. Medicare's clinician data says Thomas B. Choi 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 Thomas B. Choi?
- (562) 622-3937, as listed in official Medicare / NPI Registry data.
- What is Thomas B. Choi's NPI number?
- 1477555985. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Thomas B. Choi works
Medicare's Facility Affiliation Data lists Thomas B. Choi at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- PIH Health Downey HospitalDowney, CA · Acute Care Hospital · CCN 050393
Practice locations
Addresses where Thomas B. Choi is enrolled with Medicare (CMS data updated 2026-10-02).
- 11480 Brookshire Ave, Suite 205Downey, CA 90241 (562) 622‑3937
Specialties
- Ophthalmologyprimary
Other ophthalmologists 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 | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1477555985 |
| 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