Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Our Growing Tree

Q: What is the NPI number for Our Growing Tree?

The NPI for Our Growing Tree is 1639038003, a Type 2 (organization) record in the CMS NPPES registry.

Foster Care Agency in Tucson, AZ · enumerated 2026 · authorized official Marnie Greggs, Director/Administrator.

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

National Provider Identifier

1639038003

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Registry record

Entity type Organization (Type 2)

Legal business name Our Growing Tree

Practice address 4824 W Bluebell Way, Tucson, AZ, 85742

Phone (520) 979-0575

Enumeration date Jan 20, 2026

Last updated in NPPES Jan 20, 2026

Taxonomy & classification

253J00000X Foster Care Agency Agencies Primary

Authorized official

Name Marnie Greggs

Title Director/Administrator

Phone (520) 979-0575

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 Our Growing Tree?

NPPES lists Marnie Greggs (Director/Administrator) as the authorized official for this organization.

What is the NPI number for Our Growing Tree?

The NPI for Our Growing Tree is 1639038003, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-20.