Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Diane Dennison, LCSW

Mental Health Counselor in Wilmington, DE · enumerated 2005.

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

National Provider Identifier

1962499210

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ms. Diane Dennison

Credential LCSW

Sex Female

Practice address 405 Foulk Rd, Soar, Wilmington, DE, 19803

Phone (302) 655-9049

Enumeration date Oct 3, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License Q1-0000751 (DE) 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

What is the NPI number for Diane Dennison?

The National Provider Identifier (NPI) for Diane Dennison is 1962499210, a Type 1 (individual) record in the CMS NPPES registry.

Where does Diane Dennison practice?

The practice location on file with NPPES is in Wilmington, DE. 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 2007-07-08.