Wing K. Kam, M.D., PH.D.
Gastroenterology Physician · San Francisco, CA
Wing K. Kam, M.D., PH.D. is a gastroenterology physician with a practice address in San Francisco, California, and NPI 1003964826, issued on Jan 8, 2007. Check the license (California G43959, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Wing K. Kam
- Credential
- M.D., PH.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- G43959 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3838 California St RM 108, San Francisco, CA 94118
- Phone
- (415) 831-8383
- Enumerated
- Jan 8, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (415) 831-6988
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 3838 California St RM 108
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Corbin Wirta, PAPhysician Assistant1568216240
Verify Wing K. Kam in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G43959Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Wing K. Kam among 2,140 gastroenterology physician records in California
Wing K. Kam, M.D., PH.D. 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 not. Its NPI, issued in 2007, is newer than 52% of them.
- NPI issued2007 · 52% of these records are older, 37% newer
- In a Medicare fileNo · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2007 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,140 in California → Every provider in San Francisco → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Dean Rider, MDSan Francisco, CA 941181487759296
- Brock Macdonald, M.D.San Francisco, CA 941171689901506
- James Ostroff, MDSan Francisco, CA 941171477505881
- Harvey Watts, M.D.San Francisco, CA 941171184640872
- Zealous Wiley, MDOakland, CA 941161740232610
- Waseem Ahmad, M.D.San Francisco, CA 941151649633991
- Charlotte Ching, MDSan Francisco, CA 941151407475312
- Annsa Huang, MDSan Francisco, CA 941211861881658
Common questions
What is Wing K. Kam, M.D., PH.D.'s NPI number?
Wing K. Kam, M.D., PH.D.'s National Provider Identifier (NPI) is 1003964826, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Wing K. Kam, M.D., PH.D. located?
The NPPES record lists a practice address at 3838 California St RM 108, San Francisco, CA, 94118. Phone: (415) 831-8383. Providers update this record themselves, so call before visiting.
How can I verify Wing K. Kam, M.D., PH.D.'s license?
NPPES lists California license number G43959, 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. 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.