Christine Nguyen, M.D.
NPI 1780017897 · Ophthalmology Physician · Fountain Valley, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christine Nguyen, M.D. is a Ophthalmology Physician provider in Fountain Valley, CA (NPI 1780017897).
Provider details
- NPI number
- 1780017897
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A134102 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
3,326 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 Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,395 | $139 |
| Exam of Visual Field With Extended Testing92083 | 361 | $71 |
| Photography of the Retina92250 | 324 | $41 |
| Imaging of Optic Nerve92133 | 318 | $39 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 182 | $98 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 132 | $179 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cyclosporinebrand: Restasis | 1,030 | 259 |
| Cyclosporine | 904 | 281 |
| Bimatoprostbrand: Lumigan | 746 | 144 |
| Latanoprost | 453 | 125 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 389 | 102 |
| Timolol Maleate | 239 | 57 |
| Netarsudil Mesylatebrand: Rhopressa | 192 | 36 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$64 across 3 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 (2)
- 625 S Fair Oaks Ave Ste 280Pasadena, CA 91105-2670Phone: (626) 817-4747
- 8341 Westminster Blvd Ste 202Westminster, CA 92683-8339Phone: (714) 725-8989
Registry dates
- Enumerated
- 2013-08-12
- Last updated
- 2020-10-20
- Certified
- 2020-10-20
Frequently asked questions
- What is Christine Nguyen's NPI number?
- Christine Nguyen's National Provider Identifier (NPI) is 1780017897, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christine Nguyen's specialty?
- Christine Nguyen is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Christine Nguyen located?
- Christine Nguyen's practice location on file with NPPES is 18111 Brookhurst St Ste 6400, Fountain Valley, CA 92708-6728.
- What is Christine Nguyen's phone number?
- The practice phone number listed in the NPPES registry for Christine Nguyen is (714) 963-1444.
- Does Christine Nguyen accept Medicare?
- Christine Nguyen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christine Nguyen's NPI active?
- Yes — Christine Nguyen's NPI (1780017897) is active in the NPPES registry as of the last update on 2020-10-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.