Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Maciej Wasilewicz
Physical Therapist in Deerfield, IL · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1811594948
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Registry record
Entity type Individual (Type 1)
Name Maciej Wasilewicz
Sex Male
Practice address 947 Waukegan Rd Apt 1a, Deerfield, IL, 60015
Phone (773) 837-0123
Enumeration date Oct 1, 2020
Last updated in NPPES Oct 1, 2020
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 070.010963 (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 Maciej Wasilewicz?
The National Provider Identifier (NPI) for Maciej Wasilewicz is 1811594948, a Type 1 (individual) record in the CMS NPPES registry.
Where does Maciej Wasilewicz practice?
The practice location on file with NPPES is in Deerfield, 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 2020-10-01.