Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Timothy Donofrio, MS, ATC
Athletic Trainer in Naperville, IL · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1619963642
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Registry record
Entity type Individual (Type 1)
Name Timothy Donofrio
Credential MS, ATC
Sex Male
Practice address 806 W 75th St, Naperville, IL, 60565
Phone (630) 802-2296
Enumeration date Sep 26, 2005
Last updated in NPPES Jul 13, 2026
Taxonomy & licenses
2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 96000519 (IL) 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.
Frequently asked questions
What is the NPI number for Timothy Donofrio?
The National Provider Identifier (NPI) for Timothy Donofrio is 1619963642, a Type 1 (individual) record in the CMS NPPES registry.
Where does Timothy Donofrio practice?
The practice location on file with NPPES is in Naperville, IL. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-13.