Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Adrienne Nerini
Behavior Technician in O Fallon, IL · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1891203733
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Registry record
Entity type Individual (Type 1)
Name Adrienne Nerini
Sex Female
Practice address 634 N Main St Ste 4, O Fallon, IL, 62269
Phone (618) 726-5870
Enumeration date Jan 12, 2018
Last updated in NPPES Jan 12, 2018
Taxonomy & licenses
106S00000X Behavior Technician Behavioral Health & Social Service Providers · License 00004587 (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
Is NPI 1891203733 active?
Yes, as of the latest NPPES snapshot, NPI 1891203733 is active (record last updated 2018-01-12).
How do I verify Adrienne Nerini's NPI record?
Cross-check NPI 1891203733 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
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 Josef Dabrowski Behavior Technician · O Fallon, IL NPI 1811405780 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 2018-01-12.