Anhtuan Nguyen, MD
NPI 1821403510 · Ophthalmology Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anhtuan Nguyen, MD is a Ophthalmology Physician provider in San Antonio, TX (NPI 1821403510).
Provider details
- NPI number
- 1821403510
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- S0755 (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
11 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
6,785 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 Complete Exam of Visual System92014 | 1,265 | $122 |
| Established Patient Problem Focused Exam of Visual System92012 | 1,249 | $86 |
| Exam of Visual Field With Extended Testing92083 | 955 | $61 |
| Imaging of Optic Nerve92133 | 769 | $34 |
| Photography of the Retina92250 | 453 | $34 |
| Exam of the Internal Drainage System of Eye92020 | 316 | $26 |
| Imaging of Retina92134 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 1,060 | 324 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 1,011 | 305 |
| Brimonidine Tartrate | 563 | 194 |
| Prednisolone Acetate | 425 | 230 |
| Timolol Maleate | 396 | 145 |
| Moxifloxacin Hclbrand: Moxifloxacin | 271 | 199 |
| Dorzolamide Hcl | 191 | 63 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$718 across 15 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
- 2026-03-16
- Certified
- 2026-03-16
Frequently asked questions
- What is Anhtuan Nguyen's NPI number?
- Anhtuan Nguyen's National Provider Identifier (NPI) is 1821403510, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anhtuan Nguyen's specialty?
- Anhtuan Nguyen is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Anhtuan Nguyen located?
- Anhtuan Nguyen's practice location on file with NPPES is 5430 Fredericksburg Rd Ste 100, San Antonio, TX 78229.
- What is Anhtuan Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Anhtuan Nguyen is (210) 340-1212.
- Does Anhtuan Nguyen accept Medicare?
- Anhtuan Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anhtuan Nguyen's NPI active?
- Yes — Anhtuan Nguyen's NPI (1821403510) is active in the NPPES registry as of the last update on 2026-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.