Kevin Siwei Chen
Physician Assistant · Corona, CA
Kevin Siwei Chen is a physician assistant with a practice address in Corona, California, and NPI 1184269284, issued on Nov 12, 2019. Check the license (California 57501, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Kevin Siwei Chen
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 57501 CA
Self-reported in NPPES; status is on the state search - Practice location
- 341 Magnolia Ave Ste 201, Corona, CA 92879
- Phone
- (951) 735-6969
- Enumerated
- Nov 12, 2019
- Record last updated
- May 1, 2024
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 341 Magnolia Ave Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Thao Tomczyk, PA-CMedical Physician Assistant1306245519
Verify Kevin Siwei Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 57501Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% fewer Medicare Part D claims than the average physician assistant in 2024
678 Medicare Part D claims for 88 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 12 claims were for opioids.
Most prescribed
- Atorvastatin Calcium49 claims
- Ibuprofen30 claims
- Fluticasone Propionate24 claims
- Lisinopril22 claims
- Albuterol Sulfate Hfa20 claims
- Amlodipine Besylate18 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: $57.57
3 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme 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.
Kevin Siwei Chen among 14,451 physician assistant records in California
Kevin Siwei Chen 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 2019, is newer than 56% of them.
- NPI issued2019 · 56% of these records are older, 38% 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).
56 physician assistant records list a practice address in Corona
They are 56 of the 3,731 NPPES records with a practice address in Corona, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Corona → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Taviana Barajas, PA-CCorona, CA 928791710640180
- Lilia Bustamante, P.A.-CCorona, CA 928791578602744
- Richard Dalessandro, MDCorona, CA 928791467470450
- Amy Heller, MPACorona, CA 928791366770927
- Steven Hinojos, PA-CCorona, CA 928791447532320
- Hillary Houseman, PA-CCorona, CA 928791952469371
- Sean JacksonCorona, CA 928791861059784
- Tuyet-Khanh Nguyen, PACorona, CA 928791316221567
Common questions
What is Kevin Siwei Chen's NPI number?
Kevin Siwei Chen's National Provider Identifier (NPI) is 1184269284, issued on Nov 12, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Kevin Siwei Chen located?
The NPPES record lists a practice address at 341 Magnolia Ave Ste 201, Corona, CA, 92879. Phone: (951) 735-6969. Providers update this record themselves, so call before visiting.
How can I verify Kevin Siwei Chen's license?
NPPES lists California license number 57501, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Kevin Siwei Chen prescribe under Medicare Part D?
In 2024, Kevin Siwei Chen had 678 Medicare Part D claims for 88 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.