John Wang
Gastroenterology Physician · San Francisco, CA
John Wang is a gastroenterology physician with a practice address in San Francisco, California, and NPI 1518429869, issued on Apr 4, 2019. Check the license (California A179087, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Wang
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A179087 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2100 Webster St Ste 115, San Francisco, CA 94115
- Phone
- (415) 387-8800
- Enumerated
- Apr 4, 2019
- Record last updated
- Oct 1, 2025
- Fax
- (415) 387-5204
- Medicare enrollment
- Enrolled (PECOS I20250723000469); accepts Medicare assignment
- Medical or professional school
- University Of Texas Southwestern Medical School At Dallas, 2019
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 2100 Webster St Ste 115
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Timothy Chen, M.D.Gastroenterology Physician1699017707
- Jesse Liu, MDGastroenterology Physician1043348618
- Aristotle Mendiola, M.D.Gastroenterology Physician1871518266
- Nelli Perkins, M.D.Neurology Physician1740592112
- Arshia SadreddinNeurology Physician1033308903
- Michael Verhille, M.D.Gastroenterology Physician1851324537
Verify John Wang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A179087Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $753.01
6 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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
- North East Medical ServicesDaly City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Wang among 2,140 gastroenterology physician records in California
John Wang is one of 2,140 gastroenterology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 96% of them.
- NPI issued2019 · 96% of these records are older, 2% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2019 · median 2002 among the 1,538 with a school on file
- Record last updated2025 · 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 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
All 2,140 in California → Every provider in San Francisco → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Douglas Corley, MDSan Francisco, CA 941151598843138
- Edward Doo, MDSan Francisco, CA 941151295837243
- Yao Heng, MDSan Francisco, CA 941151225116825
- Steven Jacobsohn, M.D.San Francisco, CA 941151639104151
- Wolfgang Korn, MDSan Francisco, CA 941151235187055
- Uma Mahadevan, MDSan Francisco, CA 941151851355283
- Jane Melnick, MDSan Francisco, CA 941151124049879
- Aristotle Mendiola, M.D.San Francisco, CA 941151871518266
Common questions
What is John Wang's NPI number?
John Wang's National Provider Identifier (NPI) is 1518429869, issued on Apr 4, 2019. An NPI identifies a provider in billing; it is not a license.
Where is John Wang located?
The NPPES record lists a practice address at 2100 Webster St Ste 115, San Francisco, CA, 94115. Phone: (415) 387-8800. Providers update this record themselves, so call before visiting.
How can I verify John Wang's license?
NPPES lists California license number A179087, 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.
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.