Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Madelyn Hart,

Behavior Technician in Torrance, CA · enumerated 2021.

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

National Provider Identifier

1255905840

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Registry record

Entity type Individual (Type 1)

Name Madelyn Hart,

Sex Female

Practice address 23740 Hawthorne Blvd Ste 104, Torrance, CA, 90505

Phone (855) 223-7123

Enumeration date May 18, 2021

Last updated in NPPES May 18, 2021

Taxonomy & licenses

106S00000X Behavior Technician Behavioral Health & Social Service Providers 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 Madelyn Hart,?

The National Provider Identifier (NPI) for Madelyn Hart, is 1255905840, a Type 1 (individual) record in the CMS NPPES registry.

Where does Madelyn Hart, practice?

The practice location on file with NPPES is in Torrance, CA. 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 2021-05-18.