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Ms. Mary Regan, LCSW

Mental Health Counselor in Riverhead, NY · enumerated 2007.

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

National Provider Identifier

1528114279

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Registry record

Entity type Individual (Type 1)
Name Ms. Mary Regan
Credential LCSW
Sex Female
Practice address 538 Washington St, Riverhead, NY, 11901
Phone (631) 727-8219
Enumeration date Jan 26, 2007
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License RO52359-1 (NY) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier Type State Issuer
RO52359-1 Other NY LICENSE NUMBER

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.

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Frequently asked questions

Where does Mary Regan practice?
The practice location on file with NPPES is in Riverhead, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mary Regan?
The National Provider Identifier (NPI) for Mary Regan is 1528114279, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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