Quick answers
- Where does Nancy Tsui see patients?
- Medicare's clinician data lists 2 practice locations, including Costa Mesa, CA and Anaheim, CA. Call before your visit to confirm the address.
- What is Nancy Tsui's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Nancy Tsui accept Medicare assignment?
- Yes. Medicare's clinician data says Nancy Tsui 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 Nancy Tsui?
- (949) 873-5352, as listed in official Medicare / NPI Registry data.
- What is Nancy Tsui's NPI number?
- 1841785037. 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 Nancy Tsui is enrolled with Medicare (CMS data updated 2026-10-02).
- 1640 Newport Blvd, Suite 220Costa Mesa, CA 92627 (949) 873‑5352
- 500 S Anaheim Hills Rd, Suite 234Anaheim, CA 92807 (714) 921‑0232
Group practices
Medicare enrollment lists Nancy Tsui as a member of this group (CMS data updated 2026-10-02).
- Retina Institute of California Medical Group, a California Medical Par77 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Costa Mesa
Clinicians with the same Medicare primary specialty in Costa Mesa, CA — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1841785037 |
| 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