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East Bay Ambulatory Surgery Center LLC

Ambulatory Surgical Clinic/Center in Fremont, CA · enumerated 2011 · authorized official Carol Castillo, Administrator.

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

National Provider Identifier

1700175189

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Registry record

Entity type Organization (Type 2)
Legal business name East Bay Ambulatory Surgery Center LLC
Practice address 1860 Mowry Ave, Ste 401 & 402, Fremont, CA, 94538
Phone (424) 249-3783
Enumeration date Apr 6, 2011
Last updated in NPPES Apr 6, 2011

Taxonomy & classification

173000000X Legal Medicine Other Service Providers · License A84519 (CA) Secondary
261QA1903X Ambulatory Surgical Clinic/Center Ambulatory Health Care Facilities · License A84519 (CA) Primary

Authorized official

Name Carol Castillo
Title Administrator
Phone (424) 249-3783

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

Who is the authorized official for East Bay Ambulatory Surgery Center LLC?
NPPES lists Carol Castillo (Administrator) as the authorized official for this organization.
What is the NPI number for East Bay Ambulatory Surgery Center LLC?
The NPI for East Bay Ambulatory Surgery Center LLC is 1700175189, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-04-06.