Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Derek Sosnowski

Behavior Analyst in Randolph, MA · enumerated 2016.

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

National Provider Identifier

1649721945

Verified

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Registry record

Entity type Individual (Type 1)

Name Derek Sosnowski

Sex Male

Practice address 14 Pacella Park Dr, Randolph, MA, 02368

Phone (781) 440-0400

Enumeration date Oct 21, 2016

Last updated in NPPES Oct 21, 2016

Taxonomy & licenses

103K00000X Behavior Analyst Behavioral Health & Social Service Providers Primary

Other identifiers

Identifier	Type	State	Issuer
110026265E	Medicaid	MA	-

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 Derek Sosnowski practice?

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

What is the NPI number for Derek Sosnowski?

The National Provider Identifier (NPI) for Derek Sosnowski is 1649721945, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-21.