Katherine Y. Chen Whang, PA-C
Physician Assistant · San Gabriel, CA
Katherine Y. Chen Whang, PA-C is a physician assistant with a practice address in San Gabriel, California, and NPI 1649941923, issued on Sep 25, 2021. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Y. Chen Whang
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 923 S San Gabriel Blvd, San Gabriel, CA 91776
- Phone
- (626) 286-8700
- Enumerated
- Sep 25, 2021
- Record last updated
- Sep 25, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20220304001233); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 923 S San Gabriel Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- James Chen, M.D.Specialist1609013440
- Betty Cheung, NURSE PRACTITIONERFamily Medicine Physician1023362605
- Sharon Chow, NPNurse Practitioner1245508340
- Alvin Chu, DDSGeneral Practice Dentistry1962823906
- Susan Jung, MDFamily Medicine Physician1962415588
- Wan Ching Law, N.P.Family Nurse Practitioner1033486022
Verify Katherine Y. Chen Whang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
31% fewer Medicare Part D claims than the average physician assistant in 2024
574 Medicare Part D claims for 117 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium55 claims
- Amlodipine Besylate46 claims
- Losartan Potassium40 claims
- Simvastatin27 claims
- Metformin Hcl22 claims
- Triamcinolone Acetonide21 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
- Herald Christian Health CenterSan Gabriel, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Y. Chen Whang among 14,451 physician assistant records in California
Katherine Y. Chen Whang, PA-C 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 2021, is newer than 67% of them.
- NPI issued2021 · 67% of these records are older, 27% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2021 · 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).
11 physician assistant records list a practice address in San Gabriel
They are 11 of the 762 NPPES records with a practice address in San Gabriel, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in San Gabriel → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Jennifer Chan, PASan Gabriel, CA 917761053840272
- An Elowe, PA-CSan Gabriel, CA 917761548443310
- Jennifer Heng, PA-CSan Gabriel, CA 917761356163406
- Chen-Chi Lee, PASan Gabriel, CA 917761841528692
- Winnie TranSan Gabriel, CA 917761447937552
- Luqiu Wang, P.A.C.San Gabriel, CA 917761265469274
- Lihua YangSan Gabriel, CA 917761528492808
- Alexander Gureghian, PA-CSan Gabriel, CA 917751932715059
Common questions
What is Katherine Y. Chen Whang, PA-C's NPI number?
Katherine Y. Chen Whang, PA-C's National Provider Identifier (NPI) is 1649941923, issued on Sep 25, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Y. Chen Whang, PA-C located?
The NPPES record lists a practice address at 923 S San Gabriel Blvd, San Gabriel, CA, 91776. Phone: (626) 286-8700. Providers update this record themselves, so call before visiting.
How can I verify Katherine Y. Chen Whang, PA-C's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Y. Chen Whang, PA-C prescribe under Medicare Part D?
In 2024, Katherine Y. Chen Whang, PA-C had 574 Medicare Part D claims for 117 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.