Melissa Carolyn Chiang
Internal Medicine Physician · San Francisco, CA
Melissa Carolyn Chiang is an internal medicine physician with a practice address in San Francisco, California, and NPI 1609339159, issued on Apr 11, 2019. Check the license (California A202849, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Melissa Carolyn Chiang
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A202849 CA
036.165304 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1545 Divisadero St, San Francisco, CA 94143
- Phone
- (415) 353-7900
- Enumerated
- Apr 11, 2019
- Record last updated
- Aug 20, 2025
- Fax
- (312) 929-0373
- Medicare enrollment
- Enrolled (PECOS I20250822000558); accepts Medicare assignment
- Medical or professional school
- Columbia University College Of Physicians And Surgeons, 2019
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 1545 Divisadero St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Geraldine Collins-Bride, NPAdult Health Nurse Practitioner1225128465
Verify Melissa Carolyn Chiang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A202849Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% more Medicare Part D claims than the average internal medicine physician in 2024
4,914 Medicare Part D claims for 549 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 88 claims were for opioids.
Most prescribed
- Atorvastatin Calcium641 claims
- Amlodipine Besylate343 claims
- Losartan Potassium185 claims
- Metformin Hcl169 claims
- Metoprolol Succinate154 claims
- Gabapentin134 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
- Oak Street Health Physicians Group PCChicago, IL
- 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).
1,318 internal medicine physician records list a practice address in San Francisco
They are 1,318 of the 38,143 NPPES records with a practice address in San Francisco, and 17,696 internal medicine physician records in California.
All 1,318 in San Francisco → All 17,696 in California → Every provider in San Francisco →
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Common questions
What is Melissa Carolyn Chiang's NPI number?
Melissa Carolyn Chiang's National Provider Identifier (NPI) is 1609339159, issued on Apr 11, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Melissa Carolyn Chiang located?
The NPPES record lists a practice address at 1545 Divisadero St, San Francisco, CA, 94143. Phone: (415) 353-7900. Providers update this record themselves, so call before visiting.
How can I verify Melissa Carolyn Chiang's license?
NPPES lists California license number A202849, 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 Melissa Carolyn Chiang prescribe under Medicare Part D?
In 2024, Melissa Carolyn Chiang had 4,914 Medicare Part D claims for 549 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.