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

Nancy Mastromonica

Pediatric Occupational Therapist in Kings Park, NY · enumerated 2011.

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

National Provider Identifier

1548554900

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Registry record

Entity type Individual (Type 1)

Name Nancy Mastromonica

Sex Female

Practice address Kings Park, NY, 11754

Phone (631) 252-7797

Enumeration date Jun 2, 2011

Last updated in NPPES Jun 2, 2011

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

Taxonomy & licenses

225XP0200X Pediatric Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 007679 (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.

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Frequently asked questions

What is the NPI number for Nancy Mastromonica?

The National Provider Identifier (NPI) for Nancy Mastromonica is 1548554900, a Type 1 (individual) record in the CMS NPPES registry.

Where does Nancy Mastromonica practice?

The practice location on file with NPPES is in Kings Park, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-02.