Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

The Growth Collaborative Psychology Group LLC

Clinical Psychologist in Natick, MA · enumerated 2026 · authorized official Hillary Fitzsimmons, Owner.

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

National Provider Identifier

1871444364

Verified

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Registry record

Entity type Organization (Type 2)

Legal business name The Growth Collaborative Psychology Group LLC

Practice address 8 Pleasant St Ste 2c, Natick, MA, 01760

Phone (781) 971-8598

Fax (781) 205-1551

Enumeration date Feb 9, 2026

Last updated in NPPES Feb 9, 2026

Taxonomy & classification

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers Primary

Authorized official

Name Hillary Fitzsimmons

Title Owner

Phone (315) 559-9762

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 The Growth Collaborative Psychology Group LLC?

The Growth Collaborative Psychology Group LLC is registered in NPPES as a Clinical Psychologist (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-09.