NPPES file of Aug 9, 2026

Jeff Tai Li Chen, DR

Emergency Medicine Physician · Berkeley, CA

Jeff Tai Li Chen, DR is an emergency medicine physician with a practice address in Berkeley, California, and NPI 1912973074, issued on Feb 27, 2006. Check the license (California A90900, 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 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912973074
Name
Jeff Tai Li Chen
Credential
DR
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A90900 CA
Self-reported in NPPES; status is on the state search
Practice location
2450 Ashby Ave, Berkeley, CA 94705
Phone
(510) 204-2500
Enumerated
Feb 27, 2006
Record last updated
Sep 17, 2012 (not updated in 14 years: call before relying on the address or phone)
Medicaid ID
00A909000 CA
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 2450 Ashby Ave

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

  1. Henry Abrons, M.D.Critical Care Medicine (Internal Medicine) Physician1821001470
  2. Bobbi AllisonLactation Consultant (Registered Nurse)1952033888
  3. Madison Andersen, RN, BSNRegistered Nurse1518814763
  4. Neel Arant, CNMAdvanced Practice Midwife1528088283
  5. Marina Atala, M.D.Hospitalist Physician1992722359
  6. Richard Bails, M.D.Cardiovascular Disease Physician1336163450

Verify Jeff Tai Li 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 A90900
    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

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28% more Medicare Part D claims than the average emergency medicine physician in 2024

290 Medicare Part D claims for 186 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 39 claims were for opioids.

  1. Jeff Chen290
  2. Specialty average226

Most prescribed

  1. Doxycycline Hyclate20 claims
  2. Ondansetron Odt19 claims
  3. Meloxicam18 claims
  4. Tramadol Hcl18 claims
  5. Prednisone17 claims
  6. Meclizine Hcl15 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 98.6 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 score81.8
  2. Costout of 100 · 30%100.0
  3. Promoting interoperabilitynot scored (reweighted)
  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).

Jeff Tai Li Chen among 7,751 emergency medicine physician records in California

Jeff Tai Li Chen, DR is one of 7,751 emergency 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 60% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 59% of these records are
  • Record last updated2012 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Karen Carothers, MDBerkeley, CA 947051619935830
  2. Brian Hinrichsen, PABerkeley, CA 947051376534792
  3. Michael Jugo, MDBerkeley, CA 947051609972066
  4. Sarah Kelmenson-Chau, MDBerkeley, CA 947051689796674
  5. Michael Kessler, MDBerkeley, CA 947051316995830
  6. Michael Liu, MDBerkeley, CA 947051467571091
  7. Marjorie Macqueen, PABerkeley, CA 947051215995576
  8. Elton McAmis, MDBerkeley, CA 947051366400640

Common questions

What is Jeff Tai Li Chen, DR's NPI number?

Jeff Tai Li Chen, DR's National Provider Identifier (NPI) is 1912973074, issued on Feb 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jeff Tai Li Chen, DR located?

The NPPES record lists a practice address at 2450 Ashby Ave, Berkeley, CA, 94705. Phone: (510) 204-2500. Providers update this record themselves, so call before visiting.

How can I verify Jeff Tai Li Chen, DR's license?

NPPES lists California license number A90900, 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.

How much does Jeff Tai Li Chen, DR prescribe under Medicare Part D?

In 2024, Jeff Tai Li Chen, DR had 290 Medicare Part D claims for 186 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Jeff Tai Li Chen, DR's MIPS final score?

The 2023 MIPS final score is 98.6 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.