NPI Portal NPI Lookup & Verification

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

Mr. Griffin Chapple

Clinical Social Worker in Westport, CT · enumerated 2025 · practices at Sisu Integrated Health, LLC.

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

National Provider Identifier

1528863644

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Registry record

Entity type Individual (Type 1)
Name Mr. Griffin Chapple
Sex Male
Practice address Westport, CT, 06880
Phone (203) 349-5596
Enumeration date Feb 13, 2025
Last updated in NPPES Jan 20, 2026

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

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 16064 (CT) Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 16064 (CT) 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

What specialty is Griffin Chapple?
Griffin Chapple is registered in NPPES with the primary taxonomy of Clinical Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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