Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cassi Grinton, LPCC

Mental Health Counselor in Centennial, CO · enumerated 2025 · practices at Oak Tree Behavioral Services, Inc.

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

National Provider Identifier

1861281750

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Registry record

Entity type Individual (Type 1)

Name Cassi Grinton

Credential LPCC

Sex Female

Practice address 5161 E Arapahoe Rd Ste 200, Centennial, CO, 80122

Phone (303) 250-1327

Enumeration date May 6, 2025

Last updated in NPPES May 6, 2025

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License LPCC.0022658 (CO) Primary

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 Cassi Grinton?

The National Provider Identifier (NPI) for Cassi Grinton is 1861281750, a Type 1 (individual) record in the CMS NPPES registry.

Where does Cassi Grinton practice?

The practice location on file with NPPES is in Centennial, CO. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Alayna Abeyta Mental Health Counselor · Centennial, CO NPI 1710633623 Oak Tree Behavioral Services, Inc Mental Health Counselor · Centennial, CO NPI 1407748304

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-05-06.