NPPES file of Aug 9, 2026

James Chau, M.D.

Family Medicine Physician · Santa Ana, CA

James Chau, M.D. is a family medicine physician with a practice address in Santa Ana, California, and NPI 1285727784, issued on Oct 2, 2006. Check the license (California A96999, as entered in NPPES) on the Medical Board of California; 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
1285727784
Name
James Chau
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A96999 CA
Self-reported in NPPES; status is on the state search
Practice location
1400 N Main St, Santa Ana, CA 92701
Phone
(714) 541-6815
Enumerated
Oct 2, 2006
Record last updated
Sep 17, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(714) 541-8032
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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8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →

Also registered at 1400 N Main St

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

  1. Steffany CarballoFamily Medicine Physician1881381531
  2. Teresa Charlesworth, RNC, MSN, FNPFamily Nurse Practitioner1750444089
  3. Elieta Cho, R.D.Registered Dietitian1275928590
  4. Alejandra GallegosHealth Educator1114317120
  5. Angelica GutierrezHealth Educator1942673009
  6. Chris Kang, DMDGeneral Practice Dentistry1942595053

Verify James Chau in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A96999    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
Open 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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Industry payments in 2024: $322.68

3 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Chau$322.68
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

James Chau among 17,133 family medicine physician records in California

James Chau, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2014 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

177 family medicine physician records list a practice address in Santa Ana

They are 177 of the 8,904 NPPES records with a practice address in Santa Ana, and 17,133 family medicine physician records in California.

All 17,133 in California → Every provider in Santa Ana → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Lynette Anderson, DOSanta Ana, CA 927011164674503
  2. Bruno Bucci, M.D.Santa Ana, CA 927011407811250
  3. John Ehum, MDSanta Ana, CA 927011942483409
  4. Kathryn Larsen, MDSanta Ana, CA 927011598845638
  5. Tim Le, D.O.Santa Ana, CA 927011366480188
  6. Amy Leu, D.O.Santa Ana, CA 927011922297712
  7. Jose Mayorga, MDSanta Ana, CA 927011295925154
  8. Suzanne Nguyen, MDSanta Ana, CA 927011164605713

Common questions

What is James Chau, M.D.'s NPI number?

James Chau, M.D.'s National Provider Identifier (NPI) is 1285727784, issued on Oct 2, 2006. An NPI identifies a provider in billing; it is not a license.

Where is James Chau, M.D. located?

The NPPES record lists a practice address at 1400 N Main St, Santa Ana, CA, 92701. Phone: (714) 541-6815. Providers update this record themselves, so call before visiting.

How can I verify James Chau, M.D.'s license?

NPPES lists California license number A96999, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.