Quick answers
- Does Niki Nguyen accept Medicare assignment?
- Medicare's clinician data says Niki Nguyen may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- What is Niki Nguyen's NPI number?
- 1205677648. 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 Niki Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 18586 Sigma RdSan Antonio, TX 78258 (210) 490‑6759
- 9091 Fair Oaks Pkwy, Suite 306Fair Oaks Ranch, TX 78015 (210) 698‑6393
Group practices
Medicare enrollment lists Niki Nguyen as a member of these groups (CMS data updated October 2, 2026).
- Stone Oak Ophthalmology Center LLC5 clinicians in the group
- Dennington Collab2 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in San Antonio
Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.
Other clinicians in Stone Oak Ophthalmology Center LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Graduation year | 2023 (3 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1205677648 |
| 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 October 2, 2026, retrieved October 29, 2026
- 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