NPPES file of Aug 9, 2026

Lisa Chau

Medical Physician Assistant · Santa Ana, CA

Lisa Chau is a medical physician assistant with a practice address in Santa Ana, California, and NPI 1487257366, issued on Nov 20, 2020. Check the license (California 58873, 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
1487257366
Name
Lisa Chau
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
58873 CA
Self-reported in NPPES; status is on the state search
Practice location
901 W Civic Center Dr Ste 120, Santa Ana, CA 92703
Phone
(714) 835-8501
Enumerated
Nov 20, 2020
Record last updated
Dec 7, 2025
Medicare enrollment
Enrolled (PECOS I20220113001764); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 901 W Civic Center Dr Ste 120

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ravi BhaktaFamily Medicine Physician1093248510
  2. Megan Gonzalez, MDFamily Medicine Physician1912572926
  3. Mihaela Shabdeen, MDFamily Medicine Physician1497730147

Verify Lisa Chau 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 58873
    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
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.2 times the Medicare Part D claims of the average medical physician assistant in 2024

2,541 Medicare Part D claims for 848 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 25 claims were for opioids.

  1. Lisa Chau2,541
  2. Specialty average1,148

Most prescribed

  1. Omeprazole157 claims
  2. Atorvastatin Calcium123 claims
  3. Diclofenac Sodium107 claims
  4. Albuterol Sulfate Hfa92 claims
  5. Pantoprazole Sodium67 claims
  6. Triamcinolone Acetonide61 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

  1. Healthcare Partners Affiliates Medical GroupAnaheim, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Lisa Chau among 3,376 medical physician assistant records in California

Lisa Chau is one of 3,376 medical physician assistant records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 77% of them.

  • NPI issued2020 · 77% of these records are older, 21% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2020 · median 2012 among the 1,347 with a school on file
  • Record last updated2025 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Physician Assistant providers in California

There are 3,376 medical physician assistant records in California.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Nancy Garrettt, P.A.Santa Ana, CA 927031881732741
  2. Anna Kim, PA-CSanta Ana, CA 927031083098099
  3. Ryan OconnellSanta Ana, CA 927031134770811
  4. Darlene Topacio, P.A.Santa Ana, CA 927031528129095
  5. Julie Tran, PHYSICIAN ASSISTANTSanta Ana, CA 927031487785663
  6. Nora Bebawi, MSPA-CSanta Ana, CA 927041215051974
  7. Rhian Deguzman, PA-CSanta Ana, CA 927041417263658
  8. Triet Nguyen, PA-CSanta Ana, CA 927041619167558

Common questions

What is Lisa Chau's NPI number?

Lisa Chau's National Provider Identifier (NPI) is 1487257366, issued on Nov 20, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Lisa Chau located?

The NPPES record lists a practice address at 901 W Civic Center Dr Ste 120, Santa Ana, CA, 92703. Phone: (714) 835-8501. Providers update this record themselves, so call before visiting.

How can I verify Lisa Chau's license?

NPPES lists California license number 58873, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Lisa Chau prescribe under Medicare Part D?

In 2024, Lisa Chau had 2,541 Medicare Part D claims for 848 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.