NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mary Ann Mcgrath, Lcsw

Adult Mental Health Clinic/Center in N Massapequa, NY · enumerated 2022 · authorized official Mary Ann Mcgrath, Social Worker.

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

National Provider Identifier

1942951066

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Mary Ann Mcgrath, Lcsw
Practice address 187 East Dr, N Massapequa, NY, 11758
Enumeration date Jan 11, 2022
Last updated in NPPES Jan 11, 2022

Taxonomy & classification

261QM0850X Adult Mental Health Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Mary Ann Mcgrath
Title Social Worker

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 Mary Ann Mcgrath, Lcsw?
The NPI for Mary Ann Mcgrath, Lcsw is 1942951066, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Mary Ann Mcgrath, Lcsw?
NPPES lists Mary Ann Mcgrath (Social Worker) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-11.