Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Diane J Gracewski, LICSW

Clinical Social Worker in Old Saybrook, CT · enumerated 2009.

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

National Provider Identifier

1104066042

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Registry record

Entity type Individual (Type 1)

Name Diane J Gracewski

Credential LICSW

Sex Female

Practice address 20 Research Pkwy, C, Old Saybrook, CT, 06475

Phone (800) 370-3651

Fax (860) 510-0020

Enumeration date Mar 5, 2009

Last updated in NPPES Mar 5, 2009

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 002292 (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 is the NPI number for Diane Gracewski?

The National Provider Identifier (NPI) for Diane Gracewski is 1104066042, a Type 1 (individual) record in the CMS NPPES registry.

Where does Diane Gracewski practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-03-05.