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

Mary K Rooney

Q: What is the NPI number for Mary Rooney?

The National Provider Identifier (NPI) for Mary Rooney is 1023505690, a Type 1 (individual) record in the CMS NPPES registry.

Social Worker in Hauppauge, NY · enumerated 2018 · practices at Family Service League, Inc..

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

National Provider Identifier

1023505690

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mary K Rooney

Sex Female

Practice address Hauppauge, NY, 11788

Phone (631) 952-3333

Enumeration date Apr 18, 2018

Last updated in NPPES Jul 12, 2023

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

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 118004 (NY) Primary

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 Rooney?

The National Provider Identifier (NPI) for Mary Rooney is 1023505690, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mary Rooney practice?

The practice location on file with NPPES is in Hauppauge, 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 2023-07-12.