Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. April Sonnefeldt, ATC
Athletic Trainer in Aurora, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1154386225
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Registry record
Entity type Individual (Type 1)
Name Mrs. April Sonnefeldt
Credential ATC
Sex Female
Practice address 1201 W New York St, Aurora, IL, 60506
Phone (630) 301-6756
Enumeration date Apr 20, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative 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.
Frequently asked questions
Where does April Sonnefeldt practice?
The practice location on file with NPPES is in Aurora, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for April Sonnefeldt?
The National Provider Identifier (NPI) for April Sonnefeldt is 1154386225, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.