Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. George S Stamatopoulos, PT

Physical Therapist in Watertown, MA · enumerated 2006 · practices at Ags Physical Therapy Inc.

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

National Provider Identifier

1407925134

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Registry record

Entity type Individual (Type 1)

Name Mr. George S Stamatopoulos

Credential PT

Sex Male

Practice address 372 Main Street, Watertown, MA, 02472

Phone (617) 923-8284

Fax (617) 926-6678

Enumeration date Nov 7, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 5194 (MA) Primary

PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT credential

Other identifiers

Identifier	Type	State	Issuer
684865	Other	MA	UNITED HEALTH CARE
0389153	Medicaid	MA	-
AA27712	Other	MA	HARVARD PILGRIM H CARE

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

What specialty is George Stamatopoulos?

George Stamatopoulos is registered in NPPES with the primary taxonomy of Physical Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Ags Physical Therapy Inc Physical Therapist · Watertown, MA NPI 1356404685

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.