Thuy Nguyen, M.D.
Family Medicine Physician · Santa Ana, CA
Thuy Nguyen, M.D. is a family medicine physician with a practice address in Santa Ana, California, and NPI 1891015871, issued on Jun 1, 2010. Check the license (California A110589, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thuy Nguyen
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A110589 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3401 W Sunflower Ave., Santa Ana, CA 92704
- Phone
- (714) 619-8777
- Enumerated
- Jun 1, 2010
- Record last updated
- Nov 4, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (714) 619-8770
- Medicare enrollment
- Enrolled (PECOS I20101108000047); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Thuy Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A110589Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.2 times the Medicare Part D claims of the average family medicine physician in 2024
21,881 Medicare Part D claims for 758 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 234 claims were for opioids.
Most prescribed
- Atorvastatin Calcium912 claims
- Amlodipine Besylate703 claims
- Levothyroxine Sodium702 claims
- Gabapentin496 claims
- Losartan Potassium493 claims
- Tamsulosin Hcl471 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: $152.47
9 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 55,478 providers of this specialty with any payment received $902.55 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
- Care Partners California Medical PCCosta Mesa, CA
- Careconnectmd CA PCSan Bernardino, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thuy Nguyen among 17,133 family medicine physician records in California
Thuy Nguyen, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 60% of them.
- NPI issued2010 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2007 · median 2005 among the 10,652 with a school on file
- Record last updated2011 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
177 family medicine physician records list a practice address in Santa Ana
They are 177 of the 8,904 NPPES records with a practice address in Santa Ana, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Santa Ana → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Sura Ark, M.D.Santa Ana, CA 927041285696021
- Rama Bathala-Patel, MDSanta Ana, CA 927041992853774
- Gerardo Canchola, M.D.Santa Ana, CA 927041639185879
- George Fields, DOSanta Ana, CA 927041457387482
- Jorge Galdamez, M.D.Santa Ana, CA 927041710900998
- Sasithorn Jitpakdee, M.D.Santa Ana, CA 927041699871467
- Susan Keisner, MDSanta Ana, CA 927041417954793
- Jorge Lopez, M.D.Santa Ana, CA 927041881705556
Common questions
What is Thuy Nguyen, M.D.'s NPI number?
Thuy Nguyen, M.D.'s National Provider Identifier (NPI) is 1891015871, issued on Jun 1, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Thuy Nguyen, M.D. located?
The NPPES record lists a practice address at 3401 W Sunflower Ave., Santa Ana, CA, 92704. Phone: (714) 619-8777. Providers update this record themselves, so call before visiting.
How can I verify Thuy Nguyen, M.D.'s license?
NPPES lists California license number A110589, 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 Thuy Nguyen, M.D. prescribe under Medicare Part D?
In 2024, Thuy Nguyen, M.D. had 21,881 Medicare Part D claims for 758 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.