Jonathan Chun Ming Tsang
General Practice Physician · San Mateo, CA
Jonathan Chun Ming Tsang is a general practice physician with a practice address in San Mateo, California, and NPI 1225563299, issued on Apr 26, 2017. Check the license (California 157766, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jonathan Chun Ming Tsang
- Primary taxonomy
- General Practice Physician 208D00000X
- License numbers
- 157766 CA
A157766 CA
Self-reported in NPPES; status is on the state search - Practice location
- 222 West 39TH Avenue, San Mateo, CA 94403
- Phone
- (650) 573-2222
- Enumerated
- Apr 26, 2017
- Record last updated
- Jul 18, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200708001344); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest general practice physician records → All 1,956 in California → Look up another NPI →
Also registered at 222 West 39TH Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susanne Herz, MD, MSPediatrics Physician1710019369
Verify Jonathan Chun Ming Tsang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 157766Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average general practice physician in 2024
12 Medicare Part D claims, against an average of 3,030 among the 8,395 providers of this specialty who prescribed in Part D.
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: $237.32
2 payments; by number, the most common kind was food and beverage; the largest payer was Alkermes, Inc. The 4,259 providers of this specialty with any payment received $1,273.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- County OF Santa ClaraSan Jose, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jonathan Chun Ming Tsang among 1,956 general practice physician records in California
Jonathan Chun Ming Tsang is one of 1,956 general practice physician records with a practice address in California. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 78% of them.
- NPI issued2017 · 78% of these records are older, 21% newer
- In a Medicare fileYes · 48% of these records are
- In the CMS Doctors and Clinicians fileYes · 27% of these records are
- Graduated2017 · median 1994 among the 520 with a school on file
- Record last updated2019 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208D00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
General Practice Physician providers in California
There are 1,956 general practice physician records in California.
All 1,956 in California → Every provider in San Mateo → General Practice Physician nationwide →
The 8 general practice physician records with the nearest ZIP codes
- Demetra Stamm, M.D.San Mateo, CA 944031396906269
- Farah Zaidi, M.D.San Mateo, CA 944031760828990
- Weyman Wong, M.D.Foster City, CA 944041649636523
- Peter Eckman, M.D.Palo Alto, CA 943061467579342
- M Ghorieshi, MD, MPHPalo Alto, CA 943061720307051
- Karen Johnston, MDPalo Alto, CA 943061326518325
- Sarah Ballard, M.D.Alameda, CA 945011316092174
- Andrew Bartuska, MDStanford, CA 943051548919046
Common questions
What is Jonathan Chun Ming Tsang's NPI number?
Jonathan Chun Ming Tsang's National Provider Identifier (NPI) is 1225563299, issued on Apr 26, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Chun Ming Tsang located?
The NPPES record lists a practice address at 222 West 39TH Avenue, San Mateo, CA, 94403. Phone: (650) 573-2222. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Chun Ming Tsang's license?
NPPES lists California license number 157766, 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 Jonathan Chun Ming Tsang prescribe under Medicare Part D?
In 2024, Jonathan Chun Ming Tsang had 12 Medicare Part D claims; the average among general practice physician prescribers was 3,030. 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.