Quick answers
- Where does Eugene W. Tsai see patients?
- Medicare's clinician data lists 2 practice locations, including San Pedro, CA and Los Alamitos, CA. Call before your visit to confirm the address.
- What is Eugene W. Tsai's specialty?
- Medicare lists Allergy/Immunology as the primary specialty.
- Does Eugene W. Tsai accept Medicare assignment?
- Yes. Medicare's clinician data says Eugene W. Tsai 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.
- Does Eugene W. Tsai offer telehealth?
- Medicare's clinician data says Eugene W. Tsai offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Eugene W. Tsai?
- (310) 241-0822, as listed in official Medicare / NPI Registry data.
- What is Eugene W. Tsai's NPI number?
- 1053301200. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Eugene W. Tsai is enrolled with Medicare (CMS data updated 2026-10-02).
- 1360 W 6th St, Suite 310San Pedro, CA 90732 (310) 241‑0822
- 3801 Katella Ave, Suite 222Los Alamitos, CA 90720 (562) 594‑8831
Specialties
- Allergy/Immunologyprimary
Other allergist and immunologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albany Medical College Of Union University |
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1053301200 |
| 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
- 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