NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Merrimack Valley Physical Therapy

Physical Therapy Clinic/Center in Lawrence, MA · enumerated 2013 · authorized official Demetre Xintaropoulos, Owner/Director.

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

National Provider Identifier

1396177267

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Merrimack Valley Physical Therapy
Other name <Unavail>
Practice address 225 Essex St, 1e, Lawrence, MA, 01840
Phone (978) 208-0402
Fax (781) 938-1226
Enumeration date Aug 2, 2013
Last updated in NPPES Jan 13, 2014

Taxonomy & classification

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

Authorized official

Name Demetre Xintaropoulos
Title Owner/Director
Phone (781) 727-8897

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

Who is the authorized official for Merrimack Valley Physical Therapy?
NPPES lists Demetre Xintaropoulos (Owner/Director) as the authorized official for this organization.
What is the NPI number for Merrimack Valley Physical Therapy?
The NPI for Merrimack Valley Physical Therapy is 1396177267, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-13.