NPPES file of Aug 9, 2026

Esther Hsuan-Hsin Chang, M.D.

Obstetrics & Gynecology Physician · San Francisco, CA

Esther Hsuan-Hsin Chang, M.D. is an obstetrics & gynecology physician with a practice address in San Francisco, California, and NPI 1699764274, issued on Oct 17, 2005. Check the license (California A061553, 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
1699764274
Name
Esther Hsuan-Hsin Chang
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
A061553 CA
233604 NY
Self-reported in NPPES; status is on the state search
Practice location
1520 Stockton St, San Francisco, CA 94133
Phone
(415) 391-9686
Enumerated
Oct 17, 2005
Record last updated
Feb 16, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(212) 379-6929
Medicare enrollment
Enrolled (PECOS I20121102000263); accepts Medicare assignment
Medical or professional school
Jefferson Medical College Of Thomas Jefferson University, 1995
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 1520 Stockton St

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

  1. Mai Abdelnabi, MDRheumatology Physician1013394980
  2. Sabi Ahmed, M.D.Family Medicine Physician1760630461
  3. Christine Anne Alvarez, RNRegistered Nurse1740928647
  4. Alice ChanRegistered Nurse1184408536
  5. Beverley Chan, PHARM DPharmacist1942750260
  6. Lily Chan, R.N.Community Health Registered Nurse1073868659

Verify Esther Hsuan-Hsin Chang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A061553
    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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86% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

23 Medicare Part D claims for 18 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Esther Chang23
  2. Specialty average165

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.

Industry payments in 2024: $315.30

9 payments; by number, the most common kind was food and beverage; the largest payer was Medical Device Business Services, Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Esther Chang$315.30
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. North East Medical ServicesSan Francisco, CA

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

Esther Hsuan-Hsin Chang among 5,088 obstetrics & gynecology physician records in California

Esther Hsuan-Hsin Chang, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 95% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1995 · median 2004 among the 2,700 with a school on file
  • Record last updated2017 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. John Ho, M.D.San Francisco, CA 941331073540225
  2. Rena Hu, M.D.San Francisco, CA 941331275774374
  3. Dong Hwang, MDSan Francisco, CA 941331700951233
  4. Leonard Rothman, M.D.San Francisco, CA 941331275807323
  5. Audrey Sue-Matsumoto, MDSan Francisco, CA 941331942569918
  6. Jonathan Wong, MDSan Francisco, CA 941331780750588
  7. Samuel Young, M.D.San Francisco, CA 941331588737894
  8. Ziyad Hannon, M.D.San Francisco, CA 941321942206560

Common questions

What is Esther Hsuan-Hsin Chang, M.D.'s NPI number?

Esther Hsuan-Hsin Chang, M.D.'s National Provider Identifier (NPI) is 1699764274, issued on Oct 17, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Esther Hsuan-Hsin Chang, M.D. located?

The NPPES record lists a practice address at 1520 Stockton St, San Francisco, CA, 94133. Phone: (415) 391-9686. Providers update this record themselves, so call before visiting.

How can I verify Esther Hsuan-Hsin Chang, M.D.'s license?

NPPES lists California license number A061553, 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 Hsuan-Hsin Chang, M.D. prescribe under Medicare Part D?

In 2024, Esther Hsuan-Hsin Chang, M.D. had 23 Medicare Part D claims for 18 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.