NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Olga Kaltsou, DPT

Physical Therapist in Newton, MA · enumerated 2016 · practices at Az Physical Therapy Corporation.

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

National Provider Identifier

1649723156

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Olga Kaltsou
Credential DPT
Sex Female
Practice address 825a Washington St, Newton, MA, 02460
Phone (617) 787-0030
Fax (855) 553-7908
Enumeration date Aug 1, 2016
Last updated in NPPES Oct 25, 2022

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 22436 (MA) Primary
DPT · Doctor of Physical Therapy: A physical therapist holding the clinical doctorate now standard for the profession. About the DPT credential

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 Olga Kaltsou?
The National Provider Identifier (NPI) for Olga Kaltsou is 1649723156, a Type 1 (individual) record in the CMS NPPES registry.
Where does Olga Kaltsou practice?
The practice location on file with NPPES is in Newton, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-25.