Quick answers
- Does Yen H. Nguyen accept Medicare assignment?
- Yes. Medicare's clinician data says Yen H. 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.
- How many Medicare patients does Yen H. Nguyen see?
- In 2024, CMS data shows 640 Original Medicare patients and 6,572 services for Yen H. Nguyen. This counts Original Medicare only and measures volume, not quality.
- What is Yen H. Nguyen's NPI number?
- 1528169711. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Yen H. Nguyen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 640 |
|---|---|
| Services billed to Medicare | 6,572 |
| Different services or procedures | 18 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Removal of cataract with insertion of prosthetic lens (66984)3,739 services
- Photography of the retina (92250)592 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)502 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)108 services
- Exam of visual field with extended testing (92083)95 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis43%
- Diabetes34%
- Ischemic heart disease24%
- Chronic kidney disease23%
Practice locations
Addresses where Yen H. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).
- 9 Medical DrGreenville, NC 27834 (252) 816‑9700
Group practices
Medicare enrollment lists Yen H. Nguyen as a member of this group (CMS data updated October 2, 2026).
- Vidant Medical Group LLC1,012 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Greenville
Clinicians with the same Medicare primary specialty in Greenville, NC — not a recommendation.
Other clinicians in Vidant Medical Group LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | Pennsylvania College Of Optometry |
| Graduation year | 2006 (20 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1528169711 |
| 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
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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