Registry data as of Aug 27, 2026

Mai-Ching Chien, M.D.

Gastroenterology Physician · Hemet, CA

Mai-Ching Chien, M.D. is a gastroenterology physician with a practice address in Hemet, California, and NPI 1053322701, issued on Aug 10, 2006. Check the license (California A43947, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1053322701
Name
Mai-Ching Chien
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
A43947 CA
Self-reported in NPPES; status is on the state search
Practice location
850 E Latham Ave, Hemet, CA 92543
Phone
(951) 766-1954
Enumerated
Aug 10, 2006
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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Also registered at 850 E Latham Ave

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

  1. Susan GilillandFamily Nurse Practitioner1043534571
  2. Gerald Wareham, M.D.Diagnostic Radiology Physician1558335471
  3. Tabita Wright, MDDiagnostic Radiology Physician1447461272

Verify Mai-Ching Chien in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A43947
    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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

Gastroenterology Physician providers in California

There are 1,749 gastroenterology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other gastroenterology physician records in California

  1. David Aarons, MDLodi, CA1619081379
  2. Constante Abaya, MDOxnard, CA1003918459
  3. Homan Abdollahzadeh, MDPalm Springs, CA1184634826
  4. John Abdulian, M.D.Fresno, CA1437114113
  5. Hussein Abidali, DORancho Cucamonga, CA1205274768
  6. Alaa Abousaif, MDOrange, CA1235124108
  7. Donald Abrahm, M.D.Newport Beach, CA1215022405
  8. Maria Abreu, M.D.West Hollywood, CA1598793374
  9. Safwat Absood, M.D.Modesto, CA1932113891
  10. Ronald Adamany, M.D.Mission Viejo, CA1992780688

Common questions

What is Mai-Ching Chien, M.D.'s NPI number?

Mai-Ching Chien, M.D.'s National Provider Identifier (NPI) is 1053322701, issued on Aug 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mai-Ching Chien, M.D. located?

The NPPES record lists a practice address at 850 E Latham Ave, Hemet, CA, 92543. Phone: (951) 766-1954. Providers update this record themselves, so call before visiting.

How can I verify Mai-Ching Chien, M.D.'s license?

NPPES lists California license number A43947, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.