Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marissa Perrone, PSY.D

Clinical Child & Adolescent Psychologist in Wilmington, DE · enumerated 2020.

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

National Provider Identifier

1033721972

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Registry record

Entity type Individual (Type 1)

Name Marissa Perrone

Credential PSY.D

Sex Female

Practice address 1801 Rockland Rd Ste 302, Wilmington, DE, 19803

Phone (302) 651-4200

Enumeration date Aug 21, 2020

Last updated in NPPES Dec 22, 2020

Taxonomy & licenses

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License B1-0011230 (DE) Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD 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 Marissa Perrone?

The National Provider Identifier (NPI) for Marissa Perrone is 1033721972, a Type 1 (individual) record in the CMS NPPES registry.

Where does Marissa Perrone practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-22.