Steven Edward Chang, D.O.
Family Medicine Physician · San Francisco, CA
Steven Edward Chang, D.O. is a family medicine physician with a practice address in San Francisco, California, and NPI 1659718849, issued on May 28, 2013. Check the license (California 20A13481, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Steven Edward Chang
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 20A13481 CA
Self-reported in NPPES; status is on the state search - Practice location
- 995 Potrero Ave, San Francisco, CA 94110
- Phone
- (415) 206-8611
- Enumerated
- May 28, 2013
- Record last updated
- Mar 27, 2025
- Fax
- (415) 206-8387
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 995 Potrero Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Suzanne Barakat, M.D.Student in an Organized Health Care Education/Training Program1851703946
- George Beatty, MDInternal Medicine Physician1649387457
- Ignacio Becerra-Licha, M.D.Student in an Organized Health Care Education/Training Program1215374418
Verify Steven Edward Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A13481Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
71% fewer Medicare Part D claims than the average family medicine physician in 2024
1,034 Medicare Part D claims for 124 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium106 claims
- Losartan Potassium77 claims
- Jardiance59 claims
- Metformin Hcl Er45 claims
- Tamsulosin Hcl42 claims
- Amlodipine Besylate38 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): 90.3 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Steven Edward Chang among 17,133 family medicine physician records in California
Steven Edward Chang, D.O. 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 fileNo · 62% of these records are
- Record last updated2025 · 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.
All 17,133 in California → Every provider in San Francisco → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Joaquin Barahona, M. D.San Francisco, CA 941101205895133
- Luis Bonilla, MDSan Francisco, CA 941101629019708
- Christopher Bositis, MDSan Francisco, CA 941101427054493
- Romilda Foresti-Lorente, MDSan Francisco, CA 941101164455374
- Steven Lawton, MDSan Francisco, CA 941101366486748
- Todd May, MDSan Francisco, CA 941101679528335
- Pooja Mittal, DOSan Francisco, CA 941101215916200
- David Nidorf, MDSan Francisco, CA 941101336186121
Common questions
What is Steven Edward Chang, D.O.'s NPI number?
Steven Edward Chang, D.O.'s National Provider Identifier (NPI) is 1659718849, issued on May 28, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Steven Edward Chang, D.O. located?
The NPPES record lists a practice address at 995 Potrero Ave, San Francisco, CA, 94110. Phone: (415) 206-8611. Providers update this record themselves, so call before visiting.
How can I verify Steven Edward Chang, D.O.'s license?
NPPES lists California license number 20A13481, 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 Steven Edward Chang, D.O. prescribe under Medicare Part D?
In 2024, Steven Edward Chang, D.O. had 1,034 Medicare Part D claims for 124 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Steven Edward Chang, D.O.'s MIPS final score?
The 2023 MIPS final score is 90.3 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.