Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Cynthia Ann Marquis Drost, LCSW

Clinical Social Worker in New Haven, CT · enumerated 2007 · practices at Connecticut Mental Health Center.

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

National Provider Identifier

1679618961

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Registry record

Entity type Individual (Type 1)

Name Ms. Cynthia Ann Marquis Drost

Credential LCSW

Sex Female

Practice address 34 Park St, Connecticut Mental Health Center, New Haven, CT, 06519

Phone (203) 974-7417

Fax (203) 974-7413

Enumeration date Feb 21, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 006152 Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

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

Is NPI 1679618961 active?

Yes, as of the latest NPPES snapshot, NPI 1679618961 is active (record last updated 2007-07-08).

How do I verify Cynthia Drost's NPI record?

Cross-check NPI 1679618961 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.