NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gabrielle S Schaefer MD Psc

Gynecology Physician in Pleasanton, CA · enumerated 2007 · authorized official Gabrielle Schaefer, Owner.

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

National Provider Identifier

1831311539

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Gabrielle S Schaefer MD Psc
Practice address 5565 W Las Positas Blvd Ste 200, Pleasanton, CA, 94588
Fax (925) 251-1017
Enumeration date May 3, 2007
Last updated in NPPES Oct 4, 2007

Taxonomy & classification

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License A87289 (CA) Primary

Authorized official

Name Gabrielle Schaefer
Title Owner

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.

Read the full guide → Validate an NPI →

Frequently asked questions

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-10-04. Verify at npiregistry.cms.hhs.gov.
Where is Gabrielle S Schaefer MD Psc located?
The practice location on file with NPPES is in Pleasanton, CA.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-04.