Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Treehouse Center for Sensory Integration

Clinic/Center in Lexington, MA · enumerated 2020 · authorized official Anastasia Ivanenko, Owner/ Director.

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

National Provider Identifier

1861024457

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Registry record

Entity type Organization (Type 2)

Legal business name Treehouse Center for Sensory Integration

Practice address 19 Muzzey St # L20, Lexington, MA, 02421

Phone (781) 819-4443

Enumeration date Feb 11, 2020

Last updated in NPPES Feb 11, 2020

Taxonomy & classification

261Q00000X Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Anastasia Ivanenko

Title Owner/ Director

Phone (781) 819-4443

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 type of organization is Treehouse Center for Sensory Integration?

Treehouse Center for Sensory Integration is registered in NPPES as a Clinic/Center (its primary provider taxonomy).

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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-11.