NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Dennis J Mulhall, LCSW

Clinical Social Worker in Babylon, NY · enumerated 2006.

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

National Provider Identifier

1568537660

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mr. Dennis J Mulhall
Credential LCSW
Sex Male
Practice address Babylon, NY, 11702
Phone (631) 587-3010
Fax (631) 587-3010
Enumeration date Nov 22, 2006
Last updated in NPPES Sep 9, 2013

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License R041425 (NY) 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 Dennis Mulhall?
The National Provider Identifier (NPI) for Dennis Mulhall is 1568537660, a Type 1 (individual) record in the CMS NPPES registry.
Where does Dennis Mulhall practice?
The practice location on file with NPPES is in Babylon, NY. 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 2013-09-09.