NPPES file of Aug 9, 2026

Julia S. Chan, MD

Specialist · Los Gatos, CA

Julia S. Chan, MD is a specialist with a practice address in Los Gatos, California, and NPI 1245303734, issued on Nov 15, 2006. Check the license (California G57146, as entered in NPPES) with the California board that licenses this profession; 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
1245303734
Name
Julia S. Chan
Credential
MD
Primary taxonomy
Specialist 174400000X
License number
G57146 CA
Self-reported in NPPES; status is on the state search
Practice location
105A Cooper CT, Los Gatos, CA 95032
Phone
(408) 884-2710
Enumerated
Nov 15, 2006
Record last updated
Jul 9, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(408) 884-2734
Medicare enrollment
Enrolled (PECOS I20090508000251); accepts Medicare assignment
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 105A Cooper CT

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

  1. Guang JinAnatomic Pathology Physician1063364552
  2. Werner Stamm, MDSpecialist1669545158
  3. Jeffrey Young, MDSpecialist1912074709

Verify Julia S. Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license G57146
    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
Find 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): 78.3 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 score56.5
  2. Costnot scored (reweighted)
  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).

Bills Medicare through one group practice

  1. Associated Pathology Medical Group IncLos Gatos, CA

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

34 specialist records list a practice address in Los Gatos

They are 34 of the 1,905 NPPES records with a practice address in Los Gatos, and 5,749 specialist records in California.

Other specialist records in California

  1. Fatemeh Abbasi, PTVan Nuys, CA1558496760
  2. Erlinda Abcede, M.D.Cudahy, CA1831228675
  3. Maher Abdallah, M.D.Palm Springs, CA1205988011
  4. Farinaz AbdiSan Marcos, CA1063153963
  5. Mai Abe, LESanta Monica, CA1609405158
  6. Hamid Abedi, HEARING AID SPECIALISan Diego, CA1659410744
  7. Jonas AbellaSan Francisco, CA1679760938
  8. Shreedhar Abhyankar, M.D.Indio, CA1861530669
  9. Elaine AbichRiverside, CA1780458927
  10. Mussarat Abidi, MDLadera Ranch, CA1053307769

Common questions

What is Julia S. Chan, MD's NPI number?

Julia S. Chan, MD's National Provider Identifier (NPI) is 1245303734, issued on Nov 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Julia S. Chan, MD located?

The NPPES record lists a practice address at 105A Cooper CT, Los Gatos, CA, 95032. Phone: (408) 884-2710. Providers update this record themselves, so call before visiting.

How can I verify Julia S. Chan, MD's license?

NPPES lists California license number G57146, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

What is Julia S. Chan, MD's MIPS final score?

The 2023 MIPS final score is 78.3 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.