Jason Nghia Duong, M.D., D.C.
Family Medicine Physician · West Covina, CA
Jason Nghia Duong, M.D., D.C. is a family medicine physician with a practice address in West Covina, California, and NPI 1235462656, issued on Sep 16, 2009. Check the license (California A109049, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jason Nghia Duong
- Credential
- M.D., D.C.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A109049 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1249 S Sunset Ave, West Covina, CA 91790
- Phone
- (626) 813-2242
- Enumerated
- Sep 16, 2009
- Record last updated
- Dec 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20101201000637); 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 →
Also registered at 1249 S Sunset Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nayely Cruz, NPFamily Nurse Practitioner1366204018
- Mitchell Ducett, DOFamily Medicine Physician1336716679
- Lily Huang, PHARMDPharmacist1538608146
- Steven HuangPharmacist1881132702
- Jane Lau, PHARM DPharmacist1720526106
- Melissa Lew, DOFamily Medicine Physician1184039661
Verify Jason Nghia Duong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A109049Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average family medicine physician in 2024
8,631 Medicare Part D claims for 1,243 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 267 claims were for opioids.
Most prescribed
- Atorvastatin Calcium839 claims
- Amlodipine Besylate514 claims
- Lisinopril470 claims
- Rosuvastatin Calcium328 claims
- Losartan Potassium313 claims
- Atenolol243 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupWest Covina, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jason Nghia Duong among 17,133 family medicine physician records in California
Jason Nghia Duong, M.D., D.C. 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 2009, is newer than 58% of them.
- NPI issued2009 · 58% of these records are older, 40% 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 updated2021 · 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).
69 family medicine physician records list a practice address in West Covina
They are 69 of the 2,450 NPPES records with a practice address in West Covina, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in West Covina → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Fe Advincula, M.D.West Covina, CA 917901235162272
- Melody Angeles-Riparip, M.D.West Covina, CA 917901093752248
- Van Duong, M.D.West Covina, CA 917901497705289
- Teresita Belen Gan, MDWest Covina, CA 917901114028727
- John Koumas, D.O.West Covina, CA 917901134111958
- Zaida Obeso, M.D.West Covina, CA 917901881790616
- Jose Pilpa, MDWest Covina, CA 917901760439012
- Adriana Pollak Lazzaro, DOWest Covina, CA 917901306923974
Common questions
What is Jason Nghia Duong, M.D., D.C.'s NPI number?
Jason Nghia Duong, M.D., D.C.'s National Provider Identifier (NPI) is 1235462656, issued on Sep 16, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Jason Nghia Duong, M.D., D.C. located?
The NPPES record lists a practice address at 1249 S Sunset Ave, West Covina, CA, 91790. Phone: (626) 813-2242. Providers update this record themselves, so call before visiting.
How can I verify Jason Nghia Duong, M.D., D.C.'s license?
NPPES lists California license number A109049, 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 Jason Nghia Duong, M.D., D.C. prescribe under Medicare Part D?
In 2024, Jason Nghia Duong, M.D., D.C. had 8,631 Medicare Part D claims for 1,243 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.