NPPES file of Aug 9, 2026

Ivy Wei Chow, PA-C

Physician Assistant · Chino Hills, CA

Ivy Wei Chow, PA-C is a physician assistant with a practice address in Chino Hills, California, and NPI 1235533670, issued on Oct 14, 2014. Check the license (California 51990, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235533670
Name
Ivy Wei Chow
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
51990 CA
Self-reported in NPPES; status is on the state search
Practice location
13089 Peyton Dr # C468, Chino Hills, CA 91709
Phone
(909) 865-9500
Enumerated
Oct 14, 2014
Record last updated
Dec 8, 2021 (not updated in 5 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Ivy Wei Chow in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 51990
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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83% fewer Medicare Part D claims than the average physician assistant in 2024

142 Medicare Part D claims for 103 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 22 claims were for opioids.

  1. Ivy Chow142
  2. Specialty average830

Most prescribed

  1. Hydrocodone-Acetaminophen17 claims
  2. Cephalexin15 claims
  3. Amoxicillin-Clavulanate Potass11 claims
  4. Ibuprofen11 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.

Ivy Wei Chow among 14,451 physician assistant records in California

Ivy Wei Chow, 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 2014, is newer than 38% of them.

  • NPI issued2014 · 38% of these records are older, 59% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • 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).

22 physician assistant records list a practice address in Chino Hills

They are 22 of the 774 NPPES records with a practice address in Chino Hills, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Stephanie Chamani, PA-CChino Hills, CA 917091104949858
  2. Pamela Farah, PA-CChino Hills, CA 917091972088763
  3. Jennifer Holman, PA-CChino Hills, CA 917091942676663
  4. Esther HwangChino Hills, CA 917091851696595
  5. Tiffany Katuls, PA-CChino Hills, CA 917091982911012
  6. Elizabeth LeeChino Hills, CA 917091407515224
  7. Jennifer Lyons, PA-CChino Hills, CA 917091730215401
  8. Kandin MaraquinChino Hills, CA 917091760033278

Common questions

What is Ivy Wei Chow, PA-C's NPI number?

Ivy Wei Chow, PA-C's National Provider Identifier (NPI) is 1235533670, issued on Oct 14, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Ivy Wei Chow, PA-C located?

The NPPES record lists a practice address at 13089 Peyton Dr # C468, Chino Hills, CA, 91709. Phone: (909) 865-9500. Providers update this record themselves, so call before visiting.

How can I verify Ivy Wei Chow, PA-C's license?

NPPES lists California license number 51990, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Ivy Wei Chow, PA-C prescribe under Medicare Part D?

In 2024, Ivy Wei Chow, PA-C had 142 Medicare Part D claims for 103 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.