Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marta Anna Markiewicz
Behavior Technician in Niles, IL · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1366262198
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Registry record
Entity type Individual (Type 1)
Name Marta Anna Markiewicz
Sex Female
Practice address 7354 N Milwaukee Ave, Niles, IL, 60714
Phone (224) 251-8190
Enumeration date Oct 16, 2024
Last updated in NPPES Oct 16, 2024
Taxonomy & licenses
106S00000X Behavior Technician Behavioral Health & Social Service Providers · License RBT-24-381543 (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 Marta Markiewicz?
The National Provider Identifier (NPI) for Marta Markiewicz is 1366262198, a Type 1 (individual) record in the CMS NPPES registry.
Where does Marta Markiewicz practice?
The practice location on file with NPPES is in Niles, IL. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Nick Mester Behavior Analyst · Niles, IL NPI 1942028659 Asma Ahmad Behavior Technician · Niles, IL NPI 1811786841 Sandra Perez-Mora Speech-Language Pathologist · Niles, IL NPI 1407790363 Oleksandr Tsymbal Behavior Technician · Niles, IL NPI 1073429874 Sondos Musa Behavior Technician · Niles, IL NPI 1346156015
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-16.