NPPES file of Aug 9, 2026

Esther Chu

Family Medicine Physician · San Francisco, CA

Esther Chu is a family medicine physician with a practice address in San Francisco, California, and NPI 1710561402, issued on May 8, 2021. Check the license (California A185874, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1710561402
Name
Esther Chu
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A185874 CA
Self-reported in NPPES; status is on the state search
Practice location
3490 California St Ste 200, San Francisco, CA 94118
Phone
(415) 514-6200
Enumerated
May 8, 2021
Record last updated
Sep 28, 2024
Medicare enrollment
Enrolled (PECOS I20240917002811); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 2021
Telehealth
Offers telehealth (CMS)
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 3490 California St Ste 200

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

  1. Shayne Erwin, NPFamily Nurse Practitioner1912679143
  2. Stephanie Gay, MDFamily Medicine Physician1295362192
  3. Melinda Gu, M.D., PH DInternal Medicine Physician1295901213
  4. Dae Hyoun Jeong, M.D.Family Medicine Physician1265729818
  5. Lillian Rolfe, MDFamily Medicine Physician1750964805
  6. Michele Said, MDFamily Medicine Physician1275112963

Verify Esther Chu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A185874
    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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97% fewer Medicare Part D claims than the average family medicine physician in 2024

117 Medicare Part D claims for 48 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Esther Chu117
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium12 claims
  2. Amlodipine Besylate11 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.

Bills Medicare through 2 group practices

  1. Ucsf Medical Group Business ServicesBerkeley, CA
  2. University OF California San FranciscoSan Francisco, CA

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

Esther Chu among 17,133 family medicine physician records in California

Esther Chu 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 2021, is newer than 91% of them.

  • NPI issued2021 · 91% of these records are older, 6% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2021 · median 2005 among the 10,652 with a school on file
  • Record last updated2024 · 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).

Family Medicine Physician providers in California

There are 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Robert Bartz, M.D.San Francisco, CA 941181649319492
  2. Karis Cho, MDSan Francisco, CA 941181790909372
  3. Patricia Gibbs, M.D.San Francisco, CA 941181528113743
  4. Laura Gottlieb, MD, MPHSan Francisco, CA 941181396842001
  5. Trinh Green, MDSan Francisco, CA 941181295808384
  6. Richard Howe, MDSan Francisco, CA 941181871566679
  7. Dae Hyoun Jeong, M.D.San Francisco, CA 941181265729818
  8. George Krucik, M.D.San Francisco, CA 941181235132044

Common questions

What is Esther Chu's NPI number?

Esther Chu's National Provider Identifier (NPI) is 1710561402, issued on May 8, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Esther Chu located?

The NPPES record lists a practice address at 3490 California St Ste 200, San Francisco, CA, 94118. Phone: (415) 514-6200. Providers update this record themselves, so call before visiting.

How can I verify Esther Chu's license?

NPPES lists California license number A185874, 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 Esther Chu prescribe under Medicare Part D?

In 2024, Esther Chu had 117 Medicare Part D claims for 48 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

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.