Thai Quang Nguyen, M.D.
Cardiovascular Disease Physician · Westminster, CA
Thai Quang Nguyen, M.D. is a cardiovascular disease physician with a practice address in Westminster, California, and NPI 1447293493, issued on Jun 14, 2006. Check the license (California A39322, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thai Quang Nguyen
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- A39322 CA
Self-reported in NPPES; status is on the state search - Practice location
- 14558 Brookhurst St, Westminster, CA 92683
- Phone
- (174) 531-5056
- Enumerated
- Jun 14, 2006
- Record last updated
- Jul 30, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (174) 531-3488
- Medicare enrollment
- Enrolled (PECOS I20100917000763); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Verify Thai Quang Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A39322Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
2,799 Medicare Part D claims for 154 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Atorvastatin Calcium426 claims
- Amlodipine Besylate246 claims
- Metformin Hcl195 claims
- Losartan Potassium169 claims
- Ezetimibe149 claims
- Gabapentin103 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: $326.65
8 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 16,686 providers of this specialty with any payment received $3,819.56 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.
Thai Quang Nguyen among 2,574 cardiovascular disease physician records in California
Thai Quang Nguyen, M.D. is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 45% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1978 · median 1999 among the 1,742 with a school on file
- Record last updated2010 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in Westminster → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Tao Duong, M.D.Westminster, CA 926831235163726
- Dan Le, M.D.Westminster, CA 926831912214347
- Luc Nguyen, M.D.Westminster, CA 926831720083181
- Tung Nguyen, M.D.Westminster, CA 926831700038577
- James Tran, M.D.Westminster, CA 926831598781346
- Christine Theard, M.D.Laguna Niguel, CA 926771356410740
- Stephen Ehrlich, M.D.Mission Viejo, CA 926911700862547
- Daniel Fortmann, M.D.San Juan Capistrano, CA 926751114197142
Common questions
What is Thai Quang Nguyen, M.D.'s NPI number?
Thai Quang Nguyen, M.D.'s National Provider Identifier (NPI) is 1447293493, issued on Jun 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thai Quang Nguyen, M.D. located?
The NPPES record lists a practice address at 14558 Brookhurst St, Westminster, CA, 92683. Phone: (174) 531-5056. Providers update this record themselves, so call before visiting.
How can I verify Thai Quang Nguyen, M.D.'s license?
NPPES lists California license number A39322, 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 Thai Quang Nguyen, M.D. prescribe under Medicare Part D?
In 2024, Thai Quang Nguyen, M.D. had 2,799 Medicare Part D claims for 154 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.