Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Danielle Delfini
Behavior Analyst in Naperville, IL · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1225645930
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Registry record
Entity type Individual (Type 1)
Name Danielle Delfini
Sex Female
Practice address 1755 Park St Ste 100, Naperville, IL, 60563
Phone (847) 486-4140
Enumeration date Sep 26, 2020
Last updated in NPPES Mar 2, 2022
Taxonomy & licenses
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.
Frequently asked questions
What is the NPI number for Danielle Delfini?
The National Provider Identifier (NPI) for Danielle Delfini is 1225645930, a Type 1 (individual) record in the CMS NPPES registry.
Where does Danielle Delfini practice?
The practice location on file with NPPES is in Naperville, IL. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Emilija Steigvilaite Behavior Technician · Naperville, IL NPI 1184370769 Christina Liber Behavior Technician · Naperville, IL NPI 1104564871 Tricia Schmidt Behavior Analyst · Naperville, IL NPI 1487383337 Ellie Gatz Speech-Language Pathologist · Naperville, IL NPI 1063142040 Karina Mendez Behavior Technician · Naperville, IL NPI 1215658661 Michelle Smith Behavior Technician · Naperville, IL NPI 1942906847 Jackie Serna Behavior Technician · Naperville, IL NPI 1649975566 David Sheridan Behavior Technician · Naperville, IL NPI 1295417319
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-02.