Anh Nguyen-Liang, O.D.
NPI 1437209103 · Optometrist · Lancaster, PA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anh Nguyen-Liang, O.D. is a Optometrist provider in Lancaster, PA (NPI 1437209103).
Provider details
- NPI number
- 1437209103
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Female
- Sole proprietor
- No
- License
- OEG000277 (PA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
744 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 | 208 | $118 |
| Established Patient Problem Focused Exam of Visual System92012 | 167 | $83 |
| Exam of Visual Field With Extended Testing92083 | 91 | $59 |
| Imaging of Optic Nerve92133 | 91 | $32 |
| New Patient Complete Exam of Visual System92004 | 63 | $140 |
| Imaging of Retina92134 | 51 | $37 |
| Photography of the Retina92250 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 103 | 29 |
| Cyclosporinebrand: Restasis | 65 | 27 |
| Timolol Maleate | 38 | — |
| Cyclosporine | 22 | — |
| Prednisolone Acetate | 21 | 16 |
| Bimatoprostbrand: Lumigan | 21 | — |
| Cyclosporinebrand: Cequa | 18 | — |
| Brimonidine Tartrate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,815 across 42 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
Additional practice locations (1)
- 155 N Reading RdEphrata, PA 17522-1671Phone: (717) 299-9232
Registry dates
- Enumerated
- 2007-01-12
- Last updated
- 2019-04-11
Frequently asked questions
- What is Anh Nguyen-Liang's NPI number?
- Anh Nguyen-Liang's National Provider Identifier (NPI) is 1437209103, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anh Nguyen-Liang's specialty?
- Anh Nguyen-Liang is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Anh Nguyen-Liang located?
- Anh Nguyen-Liang's practice location on file with NPPES is 2110 Harrisburg Pike, Lancaster, PA 17601-2644.
- What is Anh Nguyen-Liang's phone number?
- The practice phone number listed in the NPPES registry for Anh Nguyen-Liang is (717) 299-9232.
- Does Anh Nguyen-Liang accept Medicare?
- Anh Nguyen-Liang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anh Nguyen-Liang's NPI active?
- Yes — Anh Nguyen-Liang's NPI (1437209103) is active in the NPPES registry as of the last update on 2019-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.