Ngoc Nguyen, M.D.
NPI 1609935113 · Ophthalmology Physician · San Jose, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ngoc Nguyen, M.D. is a Ophthalmology Physician provider in San Jose, CA (NPI 1609935113).
Provider details
- NPI number
- 1609935113
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- G070053 (CA)
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
19 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
7,619 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 | 2,245 | $114 |
| Exam of the Internal Drainage System of Eye92020 | 1,152 | $34 |
| Established Patient Complete Exam of Visual System92014 | 1,064 | $160 |
| Exam of Visual Field With Extended Testing92083 | 951 | $83 |
| Imaging of Optic Nerve92133 | 609 | $43 |
| Imaging of Retina92134 | 551 | $49 |
| New Patient Complete Exam of Visual System92004 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 49 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 3,790 | 891 |
| Timolol Maleate | 1,993 | 522 |
| Erythromycin Basebrand: Erythromycin | 1,667 | 650 |
| Bimatoprostbrand: Lumigan | 1,616 | 406 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 1,514 | 372 |
| Azelastine Hcl | 1,298 | 358 |
| Netarsudil Mesylatebrand: Rhopressa | 1,178 | 320 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$867 across 35 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
- 2006-12-08
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ngoc Nguyen's NPI number?
- Ngoc Nguyen's National Provider Identifier (NPI) is 1609935113, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ngoc Nguyen's specialty?
- Ngoc Nguyen is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Ngoc Nguyen located?
- Ngoc Nguyen's practice location on file with NPPES is 2380 Montpelier Dr Ste 300, San Jose, CA 95116-1620.
- What is Ngoc Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Ngoc Nguyen is (408) 272-3706.
- Does Ngoc Nguyen accept Medicare?
- Ngoc Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ngoc Nguyen's NPI active?
- Yes — Ngoc Nguyen's NPI (1609935113) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.