Thao M. Duong, PA
Physician Assistant · Irvine, CA
Thao M. Duong, PA is a physician assistant with a practice address in Irvine, California, and NPI 1326326570, issued on Jul 21, 2011. Check the license (California 22273, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Thao M. Duong
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 22273 CA
Self-reported in NPPES; status is on the state search - Practice location
- 16 Bel Spgs, Irvine, CA 92602
- Phone
- (901) 289-7856
- Enumerated
- Jul 21, 2011
- Record last updated
- Jan 9, 2025
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Verify Thao M. Duong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 22273Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
38% fewer Medicare Part D claims than the average physician assistant in 2024
511 Medicare Part D claims for 174 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Atorvastatin Calcium53 claims
- Albuterol Sulfate Hfa40 claims
- Amlodipine Besylate24 claims
- Levothyroxine Sodium24 claims
- Metformin Hcl21 claims
- Lisinopril20 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.
Thao M. Duong among 14,451 physician assistant records in California
Thao M. Duong, 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 2011, is newer than 30% of them.
- NPI issued2011 · 30% of these records are older, 67% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2025 · 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).
120 physician assistant records list a practice address in Irvine
They are 120 of the 7,778 NPPES records with a practice address in Irvine, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Irvine → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Laila Ayaz, PAIrvine, CA 926021417108861
- William Sullivan, PA-CIrvine, CA 926021053662924
- Summer Walker, PA-CIrvine, CA 926021912604307
- Rosmarie Ahsan, PA-CIrvine, CA 926031275084089
- Darlene Vuong, PA-CIrvine, CA 926031730553173
- Kelsey Chan, PAIrvine, CA 926041003284811
- Kevin Haley, P.A.Irvine, CA 926041730235383
- Elika Kamdar, PA-C, MMSIrvine, CA 926041578998589
Common questions
What is Thao M. Duong, PA's NPI number?
Thao M. Duong, PA's National Provider Identifier (NPI) is 1326326570, issued on Jul 21, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Thao M. Duong, PA located?
The NPPES record lists a practice address at 16 Bel Spgs, Irvine, CA, 92602. Phone: (901) 289-7856. Providers update this record themselves, so call before visiting.
How can I verify Thao M. Duong, PA's license?
NPPES lists California license number 22273, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Thao M. Duong, PA prescribe under Medicare Part D?
In 2024, Thao M. Duong, PA had 511 Medicare Part D claims for 174 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.