Thao P. Nguyen, M D
Ophthalmology Physician · San Diego, CA
Thao P. Nguyen, M D is an ophthalmology physician with a practice address in San Diego, California, and NPI 1154352185, issued on Jul 6, 2006. Check the license (California G81689, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thao P. Nguyen
- Credential
- M D
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- G81689 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2406 Ulric St, San Diego, CA 92111
- Phone
- (858) 278-9393
- Enumerated
- Jul 6, 2006
- Record last updated
- May 10, 2024
- Fax
- (858) 278-5393
- Medicaid ID
- 00G816890 CA
- Medicare enrollment
- Enrolled (PECOS I20070607000758); accepts Medicare assignment
- Medical or professional school
- University Of Oklahoma College Of Medicine, 1991
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Verify Thao P. Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G81689Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% fewer Medicare Part D claims than the average ophthalmology physician in 2024
1,212 Medicare Part D claims for 206 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 61% of claims.
Most prescribed
- Latanoprost326 claims
- Vyzulta148 claims
- Prednisolone Acetate89 claims
- Lumigan87 claims
- Restasis81 claims
- Xiidra64 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.
Industry payments in 2024: $18.26
1 payment: food and beverage; the largest payer was Bausch & Lomb Americas Inc. 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 one group practice
- Regents OF The University OF CaliforniaSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thao P. Nguyen among 2,899 ophthalmology physician records in California
Thao P. Nguyen, M D 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1991 · 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 San Diego → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Edward Brown, M.D.San Diego, CA 921111124003793
- Raymond Chan, M.D.San Diego, CA 921111730298373
- Sayjal Patel, M.D.San Diego, CA 921111184664443
- Solomon Shaftel, M.D., PH.D.San Diego, CA 921111477788412
- Thomas Eck, M.D.San Diego, CA 921101518221381
- Harry Holcomb, M.D.San Diego, CA 921091679598288
- Louis Kartsonis, M.D.San Diego, CA 921091285637702
- Kourosh Mohammadi, M.D.San Diego, CA 921091164549689
Common questions
What is Thao P. Nguyen, M D's NPI number?
Thao P. Nguyen, M D's National Provider Identifier (NPI) is 1154352185, issued on Jul 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thao P. Nguyen, M D located?
The NPPES record lists a practice address at 2406 Ulric St, San Diego, CA, 92111. Phone: (858) 278-9393. Providers update this record themselves, so call before visiting.
How can I verify Thao P. Nguyen, M D's license?
NPPES lists California license number G81689, 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 Thao P. Nguyen, M D prescribe under Medicare Part D?
In 2024, Thao P. Nguyen, M D had 1,212 Medicare Part D claims for 206 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
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.