Tammy Thu Nguyen, PA-C
Physician Assistant · Santa Ana, CA
Tammy Thu Nguyen, PA-C is a physician assistant with a practice address in Santa Ana, California, and NPI 1073980843, issued on Aug 28, 2015. Check the license (California 52707, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tammy Thu Nguyen
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 52707 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1610 W Edinger Ave, Santa Ana, CA 92704
- Phone
- (714) 641-1610
- Enumerated
- Aug 28, 2015
- Record last updated
- Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (714) 641-1146
- Medicare enrollment
- Enrolled (PECOS I20190416002306); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 1610 W Edinger Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chul Byun, DDSDentist1346319803
- Maidiana English, PA-CPhysician Assistant1487906715
- Pat Kouwabunpat, MDFamily Medicine Physician1063625069
Verify Tammy Thu Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 52707Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% fewer Medicare Part D claims than the average physician assistant in 2024
470 Medicare Part D claims for 237 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Azelastine Hcl108 claims
- Ciprofloxacin-Dexamethasone38 claims
- Fluticasone Propionate38 claims
- Fluocinonide34 claims
- Ipratropium Bromide29 claims
- Omeprazole18 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: $20.51
1 payment: food and beverage; the largest payer was Gilead Sciences, Inc. The 64,719 providers of this specialty with any payment received $841.65 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
- Southern California Permanente Medical GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tammy Thu Nguyen among 14,451 physician assistant records in California
Tammy Thu Nguyen, PA-C is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 41% of them.
- NPI issued2015 · 41% of these records are older, 56% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2015 · median 2018 among the 7,214 with a school on file
- Record last updated2021 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
124 physician assistant records list a practice address in Santa Ana
They are 124 of the 8,904 NPPES records with a practice address in Santa Ana, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Santa Ana → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Michele Burns, PASanta Ana, CA 927041437248572
- Michelle Davis, PA-CSanta Ana, CA 927041275648842
- Maidiana English, PA-CSanta Ana, CA 927041487906715
- Robert Gibson, P.A.Santa Ana, CA 927041457634008
- Elizabeth Herbst-Collins, PASanta Ana, CA 927041821320185
- Jaime Luna, PA-CSanta Ana, CA 927041962615369
- Roberto Marin, PA-CSanta Ana, CA 927041134544125
- Jigna Mehta, PA-CSanta Ana, CA 927041174638738
Common questions
What is Tammy Thu Nguyen, PA-C's NPI number?
Tammy Thu Nguyen, PA-C's National Provider Identifier (NPI) is 1073980843, issued on Aug 28, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Tammy Thu Nguyen, PA-C located?
The NPPES record lists a practice address at 1610 W Edinger Ave, Santa Ana, CA, 92704. Phone: (714) 641-1610. Providers update this record themselves, so call before visiting.
How can I verify Tammy Thu Nguyen, PA-C's license?
NPPES lists California license number 52707, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Tammy Thu Nguyen, PA-C prescribe under Medicare Part D?
In 2024, Tammy Thu Nguyen, PA-C had 470 Medicare Part D claims for 237 beneficiaries; the average among physician assistant prescribers was 830. 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.