NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Sharlene Keisha Duplessis, LCSW

Clinical Social Worker in New Britain, CT · enumerated 2011 · practices at Ftn Ct Holdings. LLC.

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

National Provider Identifier

1689942534

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ms. Sharlene Keisha Duplessis
Credential LCSW
Sex Female
Practice address 270 John Downey Dr, New Britain, CT, 06051
Enumeration date Dec 7, 2011
Last updated in NPPES Nov 8, 2018

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 10424 (CT) Primary
101Y00000X Counselor Behavioral Health & Social Service Providers Secondary
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

What is the NPI number for Sharlene Duplessis?
The National Provider Identifier (NPI) for Sharlene Duplessis is 1689942534, a Type 1 (individual) record in the CMS NPPES registry.
Where does Sharlene Duplessis practice?
The practice location on file with NPPES is in New Britain, CT. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-08.