Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Summit-One Physical Therapy Services Inc

Physical Therapy Clinic/Center in Cerritos, CA · enumerated 2009 · authorized official Voltaire Alfonso, President.

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

National Provider Identifier

1265668958

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name Summit-One Physical Therapy Services Inc

Practice address 19444 Norwalk Blvd, Cerritos, CA, 90703

Phone (562) 860-8880

Fax (562) 860-3887

Enumeration date Jun 8, 2009

Last updated in NPPES Jun 8, 2009

Taxonomy & classification

261QP2000X Physical Therapy Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Voltaire Alfonso

Title President

Phone (562) 860-8880

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 a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Summit-One Physical Therapy Services Inc?

Summit-One Physical Therapy Services Inc is registered in NPPES as a Physical Therapy Clinic/Center (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-06-08.