Mary Chung-Ning Duong, PAC
Physician Assistant · Los Angeles, CA
Mary Chung-Ning Duong, PAC is a physician assistant with a practice address in Los Angeles, California, and NPI 1386607638, issued on Apr 8, 2006. Check the license (California PA15424, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary Chung-Ning Duong
- Credential
- PAC
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA15424 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12414 Exposition Blvd, Los Angeles, CA 90064
- Phone
- (310) 272-7640
- Enumerated
- Apr 8, 2006
- Record last updated
- Jul 7, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (310) 272-7656
- Medicare enrollment
- Enrolled (PECOS I20070920000381); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 12414 Exposition Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mary Chung-Ning 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 PA15424Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average physician assistant in 2024
428 Medicare Part D claims for 45 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.
Most prescribed
- Abiraterone Acetate86 claims
- Xtandi58 claims
- Prednisone49 claims
- Orgovyx47 claims
- Nubeqa28 claims
- Lynparza25 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: $1,358.23
6 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals 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
- Providence Saint Johns Medical FoundationLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary Chung-Ning Duong among 14,451 physician assistant records in California
Mary Chung-Ning Duong, PAC 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 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 87% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2000 · 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).
935 physician assistant records list a practice address in Los Angeles
They are 935 of the 69,537 NPPES records with a practice address in Los Angeles, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Los Angeles → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jacqueline Chu, PALos Angeles, CA 900641295314342
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- Kelly Santoro, PALos Angeles, CA 900641982960340
- Amanda SimanLos Angeles, CA 900641497423552
- Brenda Siman, PALos Angeles, CA 900641598474686
- Shokoor Abrahim, P.A.Los Angeles, CA 900631912083924
- Bung Joo Choi, PALos Angeles, CA 900631851615371
Common questions
What is Mary Chung-Ning Duong, PAC's NPI number?
Mary Chung-Ning Duong, PAC's National Provider Identifier (NPI) is 1386607638, issued on Apr 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mary Chung-Ning Duong, PAC located?
The NPPES record lists a practice address at 12414 Exposition Blvd, Los Angeles, CA, 90064. Phone: (310) 272-7640. Providers update this record themselves, so call before visiting.
How can I verify Mary Chung-Ning Duong, PAC's license?
NPPES lists California license number PA15424, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mary Chung-Ning Duong, PAC prescribe under Medicare Part D?
In 2024, Mary Chung-Ning Duong, PAC had 428 Medicare Part D claims for 45 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.