Richard S. Sundberg, M.D.
Gastroenterology Physician · San Francisco, CA
Richard S. Sundberg, M.D. is a gastroenterology physician with a practice address in San Francisco, California, and NPI 1023037470, issued on Jul 18, 2006. Check the license (California G29935, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Richard S. Sundberg
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- G29935 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1700 California St Ste 100, San Francisco, CA 94109
- Phone
- (415) 387-8800
- Enumerated
- Jul 18, 2006
- Record last updated
- Sep 12, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (415) 387-5204
- Medicaid ID
- 00G299350 CA
- Entity
- Type 1 · individual
Also registered at 1700 California St Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Richard S. Sundberg in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G29935Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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.
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Common questions
What is Richard S. Sundberg, M.D.'s NPI number?
Richard S. Sundberg, M.D.'s National Provider Identifier (NPI) is 1023037470, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard S. Sundberg, M.D. located?
The NPPES record lists a practice address at 1700 California St Ste 100, San Francisco, CA, 94109. Phone: (415) 387-8800. Providers update this record themselves, so call before visiting.
How can I verify Richard S. Sundberg, M.D.'s license?
NPPES lists California license number G29935, 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.