Quick answers
- Does Lisa Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Lisa Nguyen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Lisa Nguyen's NPI number?
- 1699495937. 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 Lisa Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 210 W Main StGreenville, IL 62246 (618) 664‑9101
- 4182 Nameoki RdGranite City, IL 62040 (618) 876‑2438
Group practices
Medicare enrollment lists Lisa Nguyen as a member of these groups (CMS data updated October 2, 2026).
- Greenville Eye Glass and Contacts Inc7 clinicians in the group
- Granite City Vision, Inc.6 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Greenville
Clinicians with the same Medicare primary specialty in Greenville, IL — not a recommendation.
Other clinicians in Greenville Eye Glass and Contacts Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| School | New England College Of Optometry |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1699495937 |
| 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