Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Josef Dabrowski
Behavior Technician in O Fallon, IL · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1811405780
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Registry record
Entity type Individual (Type 1)
Name Josef Dabrowski
Sex Male
Practice address 634 N Main St Ste 4, O Fallon, IL, 62269
Phone (618) 726-5870
Enumeration date Jan 13, 2018
Last updated in NPPES Jan 13, 2018
Taxonomy & licenses
106S00000X Behavior Technician Behavioral Health & Social Service Providers · License 00002784 (MO) 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 Josef Dabrowski?
The National Provider Identifier (NPI) for Josef Dabrowski is 1811405780, a Type 1 (individual) record in the CMS NPPES registry.
Where does Josef Dabrowski practice?
The practice location on file with NPPES is in O Fallon, IL. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Alexzandra Brawley Behavior Technician · O Fallon, IL NPI 1992210272 Cyara Coleman Behavior Analyst · O Fallon, IL NPI 1740796671 Adrienne Nerini Behavior Technician · O Fallon, IL NPI 1891203733 Lauren Craft Behavior Technician · O Fallon, IL NPI 1659889467 Danielle Maggio Behavior Analyst · O Fallon, IL NPI 1255830790 Angela Mangum Behavior Analyst · O Fallon, IL NPI 1821598293 Victoria Allen Behavior Technician · O Fallon, IL NPI 1467952838 Jaclyn Herbstreit Behavior Analyst · O Fallon, IL NPI 1174023253
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-01-13.