Adam Duy Nguyen, PA
Physician Assistant · Santa Ana, CA
Adam Duy Nguyen, PA is a physician assistant with a practice address in Santa Ana, California, and NPI 1336917285, issued on Dec 19, 2023. Check the license (California PA64079, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Adam Duy Nguyen
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA64079 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1530 E Edinger Ave Ste 1, Santa Ana, CA 92705
- Phone
- (714) 442-0600
- Enumerated
- Dec 19, 2023
- Record last updated
- Jan 17, 2026
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 1530 E Edinger Ave Ste 1
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Pierce Sihotang, PTAPhysical Therapy Assistant1487182887
Verify Adam Duy 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 PA64079Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average physician assistant in 2024
140 Medicare Part D claims for 103 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Prednisone20 claims
- Nitrofurantoin Mono-Macro14 claims
- Cephalexin11 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: $18.96
1 payment: food and beverage; the largest payer was Lilly USA, LLC. 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.
Adam Duy Nguyen among 14,451 physician assistant records in California
Adam Duy Nguyen, PA 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 2023, is newer than 80% of them.
- NPI issued2023 · 80% of these records are older, 13% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2026 · 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
- Anne Castle, P.A.Santa Ana, CA 927051669424206
- Robert Cha, PASanta Ana, CA 927051710098165
- Tracy Dau, PASanta Ana, CA 927051104855105
- Jennifer Desby, PA-CSanta Ana, CA 927051740392026
- Carie Ellison, PA-CSanta Ana, CA 927051447496906
- Theresa Henry, P.A-CSanta Ana, CA 927051942316757
- Alysha Henry-Johnson, PA-CSanta Ana, CA 927051659519601
- Bonnie Huckaby, MPAS, PA-CSanta Ana, CA 927051932109204
Common questions
What is Adam Duy Nguyen, PA's NPI number?
Adam Duy Nguyen, PA's National Provider Identifier (NPI) is 1336917285, issued on Dec 19, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Adam Duy Nguyen, PA located?
The NPPES record lists a practice address at 1530 E Edinger Ave Ste 1, Santa Ana, CA, 92705. Phone: (714) 442-0600. Providers update this record themselves, so call before visiting.
How can I verify Adam Duy Nguyen, PA's license?
NPPES lists California license number PA64079, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Adam Duy Nguyen, PA prescribe under Medicare Part D?
In 2024, Adam Duy Nguyen, PA had 140 Medicare Part D claims for 103 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.