NPPES file of Aug 9, 2026

Tiffany J. Chen, M.D.

Family Medicine Physician · Westminster, CA

Tiffany J. Chen, M.D. is a family medicine physician with a practice address in Westminster, California, and NPI 1669816617, issued on Apr 22, 2013. Check the license (California A132293, 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 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1669816617
Name
Tiffany J. Chen
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A132293 CA
Self-reported in NPPES; status is on the state search
Practice location
15464 Goldenwest St, Westminster, CA 92683
Phone
(714) 891-9008
Enumerated
Apr 22, 2013
Record last updated
Jul 19, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20160901002103); accepts Medicare assignment
Medical or professional school
University Of California, Irvine, California College Of Medicine, 2013
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 15464 Goldenwest St

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

  1. Eduardo Amezcua, MDFamily Medicine Physician1073192027
  2. Jill Aversa, RPTPhysical Therapist1972731511
  3. Cynthia Birkhimer, L.AC.,DIPL.AC,M.T.O.Acupuncturist1134242530
  4. Carlos Edwards, MDPhysician Assistant1881752392
  5. Maria Gillamac, MSN, NP-CFamily Nurse Practitioner1598207110
  6. Jason Hart, M.D.Family Medicine Physician1780614602

Verify Tiffany J. 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 A132293
    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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The practice group's MIPS final score for 2023 (Medicare payment program): 76.7 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score80.9
  2. Costout of 100 · 30%55.1
  3. Promoting interoperabilityout of 100 · 25%78.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Memorialcare Medical FoundationWestminster, CA

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

Tiffany J. Chen among 17,133 family medicine physician records in California

Tiffany J. Chen, 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 2013, is newer than 68% of them.

  • NPI issued2013 · 68% of these records are older, 29% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2013 · median 2005 among the 10,652 with a school on file
  • Record last updated2016 · 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).

37 family medicine physician records list a practice address in Westminster

They are 37 of the 1,306 NPPES records with a practice address in Westminster, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Thuy Bui, MDWestminster, CA 926831619990587
  2. Chung Bui, M.D.Westminster, CA 926831427143072
  3. Dinh Dinh, DOWestminster, CA 926831972600856
  4. Jason Hart, M.D.Westminster, CA 926831780614602
  5. Jamie Lewis, M.D.Westminster, CA 926831073584173
  6. Diane Nguyen, MDWestminster, CA 926831225065428
  7. Gary Ohashi, M.D.Westminster, CA 926831417928516
  8. Trung Pham, M.D.Westminster, CA 926831851355101

Common questions

What is Tiffany J. Chen, M.D.'s NPI number?

Tiffany J. Chen, M.D.'s National Provider Identifier (NPI) is 1669816617, issued on Apr 22, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Tiffany J. Chen, M.D. located?

The NPPES record lists a practice address at 15464 Goldenwest St, Westminster, CA, 92683. Phone: (714) 891-9008. Providers update this record themselves, so call before visiting.

How can I verify Tiffany J. Chen, M.D.'s license?

NPPES lists California license number A132293, 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.

What is Tiffany J. Chen, M.D.'s MIPS final score?

The 2023 MIPS final score is 76.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.