Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Harrison Grant Douglas

Behavior Technician in Shelby Twp, MI · enumerated 2025.

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

National Provider Identifier

1861374423

Verified

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Registry record

Entity type Individual (Type 1)

Name Harrison Grant Douglas

Sex Male

Practice address Shelby Twp, MI, 48315

Phone (586) 286-9644

Enumeration date Jul 24, 2025

Last updated in NPPES Jul 24, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

106S00000X Behavior Technician Behavioral Health & Social Service Providers 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.

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Frequently asked questions

Where does Harrison Douglas practice?

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

What is the NPI number for Harrison Douglas?

The National Provider Identifier (NPI) for Harrison Douglas is 1861374423, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Tatjana Savich Occupational Therapist · Shelby Township, MI NPI 1598752321 Quality Care Rehabilitation Professionals, Inc Specialist · Shelby Township, MI NPI 1396817771 Christina Hing Occupational Therapy Assistant · Shelby Township, MI NPI 1952529703 Jeannine Kress Physical Therapist · Shelby Township, MI NPI 1386822765 Steven Salminen Physical Therapist · Shelby Township, MI NPI 1942445358 Maddelena Meirow Behavior Analyst · Shelby Twp, MI NPI 1629410337 Mark Zellefrow Behavior Analyst · Shelby Township, MI NPI 1093145120 Alexandria Stout Occupational Therapist · Shelby Township, MI NPI 1144642919

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-24.