Cathleen Hyun Marquez
Physician Assistant · Los Angeles, CA
Cathleen Hyun Marquez is a physician assistant with a practice address in Los Angeles, California, and NPI 1609129170, issued on Oct 22, 2012. Check the license (California PA52723, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cathleen Hyun Marquez
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA52723 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5970 S Central Ave, Los Angeles, CA 90001
- Phone
- (323) 234-3280
- Enumerated
- Oct 22, 2012
- Record last updated
- Nov 12, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (323) 234-3493
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 5970 S Central Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Maria Daly, D.O.Family Medicine Physician1225127491
- Gilda De La Torre, LCSWClinical Social Worker1669606513
- Oscar Escobar, PA-CPhysician Assistant1477670750
- Morton Kamzan, M.D.Internal Medicine Physician1043547813
- Sommer Kaskowitz, FNPFamily Nurse Practitioner1144620402
Verify Cathleen Hyun Marquez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA52723Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average physician assistant in 2024
1,888 Medicare Part D claims for 158 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Atorvastatin Calcium199 claims
- Mounjaro170 claims
- Metformin Hcl148 claims
- Lisinopril97 claims
- Trulicity79 claims
- Amlodipine Besylate75 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: $312.58
14 payments; by number, the most common kind was food and beverage; the largest payer was ViiV Healthcare Company. 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.
Cathleen Hyun Marquez among 14,451 physician assistant records in California
Cathleen Hyun Marquez 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 2012, is newer than 33% of them.
- NPI issued2012 · 33% of these records are older, 65% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2019 · 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).
935 physician assistant records list a practice address in Los Angeles
They are 935 of the 69,537 NPPES records with a practice address in Los Angeles, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Los Angeles → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Saul De La Rosa, PA PHYSICIAN ASSISTALos Angeles, CA 900011669554705
- Oscar Escobar, PA-CLos Angeles, CA 900011477670750
- Kelly LucLos Angeles, CA 900011063022937
- Tracy Nwajuaku, PHYSICIAN ASSISTANTLos Angeles, CA 900011295914786
- Michael Reed, PALos Angeles, CA 900011831996644
- Ezequiel Sanchez, PA-CLos Angeles, CA 900011649577842
- Pamela Zaldivar, PALos Angeles, CA 900011447063508
- Dawn Bernard, PA-CLos Angeles, CA 900021376648956
Common questions
What is Cathleen Hyun Marquez's NPI number?
Cathleen Hyun Marquez's National Provider Identifier (NPI) is 1609129170, issued on Oct 22, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Cathleen Hyun Marquez located?
The NPPES record lists a practice address at 5970 S Central Ave, Los Angeles, CA, 90001. Phone: (323) 234-3280. Providers update this record themselves, so call before visiting.
How can I verify Cathleen Hyun Marquez's license?
NPPES lists California license number PA52723, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Cathleen Hyun Marquez prescribe under Medicare Part D?
In 2024, Cathleen Hyun Marquez had 1,888 Medicare Part D claims for 158 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.