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Adult & Pediatric Gastroenterology Medical Center

Gastroenterology Physician in San Ramon, CA · enumerated 2007 · authorized official Jeffrey Mark, Physician.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1538367818

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Registry record

Entity type Organization (Type 2)
Legal business name Adult & Pediatric Gastroenterology Medical Center
Other name <Unavail>
Practice address 111 Deerwood Rd, Suite 168, San Ramon, CA, 94583
Phone (925) 736-8228
Fax (925) 736-8882
Enumeration date Jul 6, 2007
Last updated in NPPES Jan 10, 2012

Taxonomy & classification

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License G83524 (CA) Primary

Authorized official

Name Jeffrey Mark
Title Physician
Phone (925) 736-8228

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where is Adult & Pediatric Gastroenterology Medical Center located?
The practice location on file with NPPES is in San Ramon, CA.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2012-01-10. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-01-10.