Catherine Kityi Yaw Huynh, PA-C
Physician Assistant · Pomona, CA
Catherine Kityi Yaw Huynh, PA-C is a physician assistant with a practice address in Pomona, California, and NPI 1285123653, issued on May 1, 2018. Check the license (California PA55866, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Catherine Kityi Yaw Huynh
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA55866 CA
Self-reported in NPPES; status is on the state search - Practice location
- 450 E 2ND St, Pomona, CA 91766
- Phone
- (909) 469-5378
- Enumerated
- May 1, 2018
- Record last updated
- Jul 10, 2023
- Medicare enrollment
- Enrolled (PECOS I20181015000401); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 450 E 2ND St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Catherine Kityi Yaw Huynh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA55866Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% fewer Medicare Part D claims than the average physician assistant in 2024
661 Medicare Part D claims for 380 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 30 claims were for opioids.
Most prescribed
- Prednisone67 claims
- Amoxicillin-Clavulanate Potass51 claims
- Albuterol Sulfate Hfa36 claims
- Azithromycin36 claims
- Ciprofloxacin Hcl30 claims
- Cefadroxil29 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 GroupSanta Ana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Catherine Kityi Yaw Huynh among 14,451 physician assistant records in California
Catherine Kityi Yaw Huynh, 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 2018, is newer than 52% of them.
- NPI issued2018 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2018 · median 2018 among the 7,214 with a school on file
- Record last updated2023 · 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).
186 physician assistant records list a practice address in Pomona
They are 186 of the 5,102 NPPES records with a practice address in Pomona, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Pomona → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Lidia AlvarezPomona, CA 917661477004265
- Parvaneh Darvish, P.A.-CPomona, CA 917661295946697
- Timothy Foster, PAPomona, CA 917661427505296
- Hailey GarrisonPomona, CA 917661629590732
- Cynthia Hoang, PA-CPomona, CA 917661245548874
- Jonathan LeePomona, CA 917661609329424
- Miguel Medina, PACPomona, CA 917661447232640
- Reynaldo Obrero, P.A.-CPomona, CA 917661275784852
Common questions
What is Catherine Kityi Yaw Huynh, PA-C's NPI number?
Catherine Kityi Yaw Huynh, PA-C's National Provider Identifier (NPI) is 1285123653, issued on May 1, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Catherine Kityi Yaw Huynh, PA-C located?
The NPPES record lists a practice address at 450 E 2ND St, Pomona, CA, 91766. Phone: (909) 469-5378. Providers update this record themselves, so call before visiting.
How can I verify Catherine Kityi Yaw Huynh, PA-C's license?
NPPES lists California license number PA55866, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Catherine Kityi Yaw Huynh, PA-C prescribe under Medicare Part D?
In 2024, Catherine Kityi Yaw Huynh, PA-C had 661 Medicare Part D claims for 380 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.