Elizabeth V. Nguyen, D.O.
Ophthalmology Physician · Fountain Valley, CA
Elizabeth V. Nguyen, D.O. is an ophthalmology physician with a practice address in Fountain Valley, California, and NPI 1689891640, issued on Apr 19, 2007. Check the license (California 20A 10810, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Elizabeth V. Nguyen
- Credential
- D.O.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- 20A 10810 CA
5101016090 MI
Self-reported in NPPES; status is on the state search - Practice location
- 17010 Magnolia St Ste A, Fountain Valley, CA 92708
- Phone
- (714) 839-2077
- Enumerated
- Apr 19, 2007
- Record last updated
- Jul 3, 2024
- Fax
- (714) 839-9692
- Medicare enrollment
- Enrolled (PECOS I20111117000184); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 17010 Magnolia St Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Tran, M.D.Ophthalmology Physician1801888110
Verify Elizabeth V. Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A 10810Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% more Medicare Part D claims than the average ophthalmology physician in 2024
2,547 Medicare Part D claims for 551 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 57% of claims. 60 claims were for opioids.
Most prescribed
- Erythromycin347 claims
- Lumigan328 claims
- Latanoprost244 claims
- Restasis228 claims
- Cyclosporine210 claims
- Simbrinza135 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,146.35
38 payments; by number, the most common kind was food and beverage; the largest payer was Glaukos Corporation. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Michael K Tran M D IncWestminster, CA
- Orange County Ophthalmology Medical Group.Garden Grove, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Elizabeth V. Nguyen among 2,899 ophthalmology physician records in California
Elizabeth V. Nguyen, D.O. is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 55% of them.
- NPI issued2007 · 55% of these records are older, 33% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2004 · median 2001 among the 1,907 with a school on file
- Record last updated2024 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Fountain Valley → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Arpine BarsegianFountain Valley, CA 927081780070649
- Benjamin Bert, M.D.Fountain Valley, CA 927081518129964
- Mark Bronstein, M.D.Fountain Valley, CA 927081750457404
- Brian Francis, M.D.Fountain Valley, CA 927081427118348
- Vicki Lin, M.D.Fountain Valley, CA 927081326146937
- Lincoln Manzi, MD, INCFountain Valley, CA 927081376592188
- Trung Nguyen, M.D.Fountain Valley, CA 927081316941966
- Tri Nguyen, M.D.Fountain Valley, CA 927081669436002
Common questions
What is Elizabeth V. Nguyen, D.O.'s NPI number?
Elizabeth V. Nguyen, D.O.'s National Provider Identifier (NPI) is 1689891640, issued on Apr 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Elizabeth V. Nguyen, D.O. located?
The NPPES record lists a practice address at 17010 Magnolia St Ste A, Fountain Valley, CA, 92708. Phone: (714) 839-2077. Providers update this record themselves, so call before visiting.
How can I verify Elizabeth V. Nguyen, D.O.'s license?
NPPES lists California license number 20A 10810, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Elizabeth V. Nguyen, D.O. prescribe under Medicare Part D?
In 2024, Elizabeth V. Nguyen, D.O. had 2,547 Medicare Part D claims for 551 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Elizabeth V. Nguyen, D.O.'s MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.