NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Main Street Specialty Surgery Center

Ambulatory Surgical Clinic/Center in Orange, CA · enumerated 2005 · authorized official Tammy Tanner, Business Administration.

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

National Provider Identifier

1891782264

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Main Street Specialty Surgery Center
Practice address 280 S Main St, Suite 100, Orange, CA, 92868
Phone (714) 704-1900
Fax (714) 704-1912
Enumeration date Sep 30, 2005
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

261QA1903X Ambulatory Surgical Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Tammy Tanner
Title Business Administration
Phone (714) 704-1900

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

What is the NPI number for Main Street Specialty Surgery Center?
The NPI for Main Street Specialty Surgery Center is 1891782264, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Main Street Specialty Surgery Center?
NPPES lists Tammy Tanner (Business Administration) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.