Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Cynthia M Fredericks, LMSW

Social Worker in Syosset, NY · enumerated 2008.

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

National Provider Identifier

1417100546

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Registry record

Entity type Individual (Type 1)

Name Ms. Cynthia M Fredericks

Credential LMSW

Sex Female

Practice address 19 Clarissa Dr, Syosset, NY, 11791

Phone (516) 921-4968

Fax (516) 921-4968

Enumeration date Nov 3, 2008

Last updated in NPPES Nov 3, 2008

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 069659 (NY) 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 is the NPI number for Cynthia Fredericks?

The National Provider Identifier (NPI) for Cynthia Fredericks is 1417100546, a Type 1 (individual) record in the CMS NPPES registry.

Where does Cynthia Fredericks practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-03.