Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Griffin Sypek

Social Worker in Marshfield, MA · enumerated 2025.

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

National Provider Identifier

1912705518

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Registry record

Entity type Individual (Type 1)

Name Griffin Sypek

Sex X

Practice address 769 Plain St, Marshfield, MA, 02050

Phone (781) 375-6933

Enumeration date Mar 7, 2025

Last updated in NPPES Mar 7, 2025

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License S65516536 (MA) 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 specialty is Griffin Sypek?

Griffin Sypek is registered in NPPES with the primary taxonomy of 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 2025-03-07.