Lan Nguyen, M.D.
NPI 1174516264 · Specialist · San Jose, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lan Nguyen, M.D. is a Specialist provider in San Jose, CA (NPI 1174516264).
Provider details
- NPI number
- 1174516264
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A716250 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
21 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
4,592 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 | 1,589 | $108 |
| Photography of the Retina92250 | 893 | $45 |
| Imaging of Optic Nerve92133 | 523 | $44 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 421 | $147 |
| Imaging of Retina92134 | 401 | $49 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 235 | $190 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 35 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azelastine Hcl | 4,436 | 1,384 |
| Latanoprost | 1,568 | 267 |
| Timolol Maleate | 574 | 168 |
| Prednisolone Acetate | 490 | 364 |
| Neomycin/Polymyxin B/Dexamethabrand: Neomycin-Polymyxin-Dexameth | 372 | 306 |
| Ofloxacin | 320 | 254 |
| Bepotastine Besilate | 316 | 134 |
| Bimatoprostbrand: Lumigan |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$414 across 10 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
- 2005-08-24
- Last updated
- 2018-07-26
Frequently asked questions
- What is Lan Nguyen's NPI number?
- Lan Nguyen's National Provider Identifier (NPI) is 1174516264, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lan Nguyen's specialty?
- Lan Nguyen is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Lan Nguyen located?
- Lan Nguyen's practice location on file with NPPES is 135 N Jackson Ave, San Jose, CA 95116.
- What is Lan Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Lan Nguyen is (408) 923-4145.
- Does Lan Nguyen accept Medicare?
- Lan Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lan Nguyen's NPI active?
- Yes — Lan Nguyen's NPI (1174516264) is active in the NPPES registry as of the last update on 2018-07-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.