Registry data as of Aug 27, 2026

Frederick Chen, MD

Gastroenterology Physician · Freedom, CA

Frederick Chen, MD is a gastroenterology physician with a practice address in Freedom, California, and NPI 1962539585, issued on Feb 28, 2007. Check the license (California A25253, 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
1962539585
Name
Frederick Chen
Credential
MD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
A25253 CA
Self-reported in NPPES; status is on the state search
Practice location
243 Green Valley RD Suite #E, Freedom, CA 95019
Phone
(831) 728-1410
Enumerated
Feb 28, 2007
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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Verify Frederick 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 A25253
    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 →

3 gastroenterology physician records list a Freedom practice address

They are 3 of the 90 NPPES records with a Freedom practice address, and 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 Frederick Chen, MD's NPI number?

Frederick Chen, MD's National Provider Identifier (NPI) is 1962539585, issued on Feb 28, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Frederick Chen, MD located?

The NPPES record lists a practice address at 243 Green Valley RD Suite #E, Freedom, CA, 95019. Phone: (831) 728-1410. Providers update this record themselves, so call before visiting.

How can I verify Frederick Chen, MD's license?

NPPES lists California license number A25253, 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.