NPPES file of Aug 9, 2026

Yanni Michelle Chang, MD

Addiction Medicine (Psychiatry & Neurology) Physician · San Diego, CA

Yanni Michelle Chang, MD is an addiction medicine (psychiatry & neurology) physician with a practice address in San Diego, California, and NPI 1922629880, issued on May 2, 2020. Check the license (California A202863, 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
1922629880
Name
Yanni Michelle Chang
Credential
MD
Primary taxonomy
Addiction Medicine (Psychiatry & Neurology) Physician 2084A0401X
License number
A202863 CA
Self-reported in NPPES; status is on the state search
Practice location
4094 4TH Ave, San Diego, CA 92103
Phone
(619) 515-2545
Enumerated
May 2, 2020
Record last updated
Aug 19, 2025
Medicare enrollment
Enrolled (PECOS I20250715003770); accepts Medicare assignment
Medical or professional school
University Of Washington School Of Medicine, 2020
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 4094 4TH Ave

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

  1. Susan AllenMarriage & Family Therapist1780939470
  2. Jennifer Asuncion, LCSWClinical Social Worker1083056279
  3. Renaldo Barrios, NPAdult Health Nurse Practitioner1609865740
  4. Donald Beeler, NPFamily Nurse Practitioner1356705529
  5. Lisa Benton, ARNPFamily Nurse Practitioner1487933545
  6. Chase Billotte, DPTPhysical Therapist1689064214

Verify Yanni Michelle 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 A202863    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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93% fewer Medicare Part D claims than the average addiction medicine (psychiatry & neurology) physician in 2024

64 Medicare Part D claims, against an average of 870 among the 264 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Yanni Chang64
  2. Specialty average870

Most prescribed

  1. Bupropion Xl15 claims
  2. Sertraline 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.

Bills Medicare through one group practice

  1. Family Health Centers OF San Diego IncSan Diego, CA

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

Addiction Medicine (Psychiatry & Neurology) Physician providers in California

There are 40 addiction medicine (psychiatry & neurology) physician records in California.

All 40 in California → Every provider in San Diego →

Other addiction medicine (psychiatry & neurology) physician records in California

  1. Laura Adler, M.D.Palm Desert, CA1538420997
  2. Fred Berger, M.D.San Diego, CA1508890021
  3. Bharat Bhushan, MDPalo Alto, CA1497899744
  4. Arthur Brody, M.D.Los Angeles, CA1992744148
  5. Hyla Cass, M.D.Pacific Palisades, CA1821293317
  6. Sara Marie Cohen-Fournier, MDPalo Alto, CA1760150411
  7. Nima Fahimian, M.D.Los Angeles, CA1437100278
  8. Mona Ferrer-Kaw, M.D.San Rafael, CA1225397979
  9. Kimberly Fitzgerald, M.D.San Diego, CA1750525267
  10. Peolia Fonsworth, M.D., M.B.ATorrance, CA1639412091

Common questions

What is Yanni Michelle Chang, MD's NPI number?

Yanni Michelle Chang, MD's National Provider Identifier (NPI) is 1922629880, issued on May 2, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Yanni Michelle Chang, MD located?

The NPPES record lists a practice address at 4094 4TH Ave, San Diego, CA, 92103. Phone: (619) 515-2545. Providers update this record themselves, so call before visiting.

How can I verify Yanni Michelle Chang, MD's license?

NPPES lists California license number A202863, 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 Yanni Michelle Chang, MD prescribe under Medicare Part D?

In 2024, Yanni Michelle Chang, MD had 64 Medicare Part D claims; the average among addiction medicine (psychiatry & neurology) physician prescribers was 870. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.