Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Greenwich Physical Therapy Center, P.C.

Physical Therapist in Riverside, CT · enumerated 2006 · authorized official Scott Gelbs, Owner / Director.

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

National Provider Identifier

1346290574

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Registry record

Entity type Organization (Type 2)

Legal business name Greenwich Physical Therapy Center, P.C.

Practice address 1171 E Putnam Ave, Riverside, CT, 06878

Phone (203) 637-1700

Fax (203) 637-5447

Enumeration date May 10, 2006

Last updated in NPPES Dec 26, 2007

Taxonomy & classification

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Primary

Authorized official

Name Scott Gelbs

Title Owner / Director

Phone (203) 637-1700

Other identifiers

Identifier	Type	State	Issuer
478953	Other	CT	AETNA HMO GROUP NUMBER
683014	Other	CT	UNITED HEALTH CARE / ACN

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 Greenwich Physical Therapy Center, P.C.?

Greenwich Physical Therapy Center, P.C. is registered in NPPES as a Physical Therapist (its primary provider taxonomy).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-26.