NPPES file of Aug 9, 2026

Cai Chen, DO

Psychiatry Physician · Los Altos, CA

Cai Chen, DO is a psychiatry physician with a practice address in Los Altos, California, and NPI 1760916563, issued on Apr 18, 2017. Check the license (California 20A19127, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1760916563
Name
Cai Chen
Credential
DO
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
20A19127 CA
R9588 TX
Self-reported in NPPES; status is on the state search
Practice location
851 Fremont Ave Ste 102, Los Altos, CA 94024
Phone
(916) 877-4791
Enumerated
Apr 18, 2017
Record last updated
Aug 17, 2024
Medicare enrollment
Enrolled (PECOS I20220314002068); accepts Medicare assignment
Medical or professional school
University Of North Texas Hsc, College Of Osteopathic Med, 2017
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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Verify Cai Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A19127
    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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Bills Medicare through 2 group practices

  1. Cep America - Psychiatry PCBurlingame, CA
  2. County OF San MateoSan Mateo, CA

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

Cai Chen among 8,673 psychiatry physician records in California

Cai Chen, DO is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 79% of them.

  • NPI issued2017 · 79% of these records are older, 18% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2017 · median 2005 among the 3,295 with a school on file
  • Record last updated2024 · 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 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

30 psychiatry physician records list a practice address in Los Altos

They are 30 of the 718 NPPES records with a practice address in Los Altos, and 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Frank Annis, MDLos Altos, CA 940241265536494
  2. Thomas Becker, MDLos Altos, CA 940241912095530
  3. Jeanette Bland, M.D.Los Altos, CA 940241851459192
  4. Ann Bogan, M.D.Los Altos, CA 940241629122296
  5. Lawrence Choy, M.D.Los Altos, CA 940241134316326
  6. Ronald Cohen, M.D.Los Altos, CA 940241902064298
  7. Kimberly Holland, M.D.Los Altos, CA 940241447301858
  8. Farah Khan, M.D.Los Altos, CA 940241093778219

Common questions

What is Cai Chen, DO's NPI number?

Cai Chen, DO's National Provider Identifier (NPI) is 1760916563, issued on Apr 18, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Cai Chen, DO located?

The NPPES record lists a practice address at 851 Fremont Ave Ste 102, Los Altos, CA, 94024. Phone: (916) 877-4791. Providers update this record themselves, so call before visiting.

How can I verify Cai Chen, DO's license?

NPPES lists California license number 20A19127, 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.

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.