Lilian Nguyen, MD
NPI 1376958066 · Ophthalmology Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lilian Nguyen, MD is a Ophthalmology Physician provider in San Antonio, TX (NPI 1376958066).
Provider details
- NPI number
- 1376958066
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- S0521 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
876 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Problem Focused Exam of Visual System92012 | 230 | $88 |
| Established Patient Complete Exam of Visual System92014 | 126 | $125 |
| Imaging of Optic Nerve92133 | 126 | $36 |
| Exam of Visual Field With Extended Testing92083 | 113 | $63 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 85 | $129 |
| Measurement of Corneal Pressure92145 | 42 | $12 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 711 | 204 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 441 | 137 |
| Brimonidine Tartrate | 201 | 67 |
| Timolol Maleate | 190 | 61 |
| Prednisolone Acetate | 188 | 104 |
| Moxifloxacin Hclbrand: Moxifloxacin | 100 | 75 |
| Cyclosporinebrand: Restasis | 98 | 36 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$640 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-06-22
- Last updated
- 2019-10-02
Frequently asked questions
- What is Lilian Nguyen's NPI number?
- Lilian Nguyen's National Provider Identifier (NPI) is 1376958066, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lilian Nguyen's specialty?
- Lilian Nguyen is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Lilian Nguyen located?
- Lilian Nguyen's practice location on file with NPPES is 8300 Floyd Curl Dr Fl 6, San Antonio, TX 78229-3931.
- What is Lilian Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Lilian Nguyen is (210) 450-9400.
- Does Lilian Nguyen accept Medicare?
- Lilian Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lilian Nguyen's NPI active?
- Yes — Lilian Nguyen's NPI (1376958066) is active in the NPPES registry as of the last update on 2019-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.