Oi Y. Chung, P.A.,N.P.
Physician Assistant · Monterey Park, CA
Oi Y. Chung, P.A.,N.P. is a physician assistant with a practice address in Monterey Park, California, and NPI 1104085893, issued on Jun 6, 2008. Check the license (California PA19610, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Oi Y. Chung
- Credential
- P.A.,N.P.
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- PA19610 CA
NP584426 CA
Self-reported in NPPES; status is on the state search - Practice location
- 525 N Garfield Ave, Monterey Park, CA 91754
- Phone
- (626) 573-2222
- Enumerated
- Jun 6, 2008
- Record last updated
- Sep 17, 2024
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 525 N Garfield Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alex Alexani, CRT, RCP, AOSPulmonary Diagnostics Certified Respiratory Therapist1396267936
- Htoo Htoo Aung, MDInternal Medicine Physician1942615075
- Connie Chan, D.O.Emergency Medicine Physician1639105745
- Randall Chan, MDInternal Medicine Physician1265969273
- Adeline ChiangCritical Care Medicine Registered Nurse1922942531
- Cynthia Chinn, MDAnesthesiology Physician1427355981
Verify Oi Y. Chung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA19610Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% more Medicare Part D claims than the average physician assistant in 2024
1,120 Medicare Part D claims for 466 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims.
Most prescribed
- Vemlidy178 claims
- Gavilyte-G136 claims
- Tenofovir Disoproxil Fumarate96 claims
- Sod Sulf-Potass Sulf-Mag Sulf71 claims
- Omeprazole62 claims
- Clenpiq45 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: $1,250.73
33 payments; by number, the most common kind was 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.
Oi Y. Chung among 14,451 physician assistant records in California
Oi Y. Chung, P.A.,N.P. 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 2008, is newer than 22% of them.
- NPI issued2008 · 22% of these records are older, 75% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2024 · 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).
21 physician assistant records list a practice address in Monterey Park
They are 21 of the 948 NPPES records with a practice address in Monterey Park, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Monterey Park → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Freddy Chan, P.A.Monterey Park, CA 917541639289614
- Renee Chong, P.A.Monterey Park, CA 917541629014873
- Coleman Ho, PA-CMonterey Park, CA 917541245580273
- Christine HuynhMonterey Park, CA 917541386365344
- Jason Lam, PA-CMonterey Park, CA 917541770346371
- Xiuhua Liang, MSPA-CMonterey Park, CA 917541710175625
- Catherine Liu, MSPACMonterey Park, CA 917541285960070
- Levi Newman, PA-CMonterey Park, CA 917541710429048
Common questions
What is Oi Y. Chung, P.A.,N.P.'s NPI number?
Oi Y. Chung, P.A.,N.P.'s National Provider Identifier (NPI) is 1104085893, issued on Jun 6, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Oi Y. Chung, P.A.,N.P. located?
The NPPES record lists a practice address at 525 N Garfield Ave, Monterey Park, CA, 91754. Phone: (626) 573-2222. Providers update this record themselves, so call before visiting.
How can I verify Oi Y. Chung, P.A.,N.P.'s license?
NPPES lists California license number PA19610, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Oi Y. Chung, P.A.,N.P. prescribe under Medicare Part D?
In 2024, Oi Y. Chung, P.A.,N.P. had 1,120 Medicare Part D claims for 466 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.