Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexa Mackenzie Hartmann

Behavior Technician in O Fallon, IL · enumerated 2024.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1588493597

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Registry record

Entity type Individual (Type 1)

Name Alexa Mackenzie Hartmann

Sex Female

Practice address 634 N Main St Ste 4, O Fallon, IL, 62269

Phone (618) 796-5870

Enumeration date Jul 29, 2024

Last updated in NPPES Jul 29, 2024

Taxonomy & licenses

106S00000X Behavior Technician Behavioral Health & Social 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.

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Frequently asked questions

Where does Alexa Hartmann practice?

The practice location on file with NPPES is in O Fallon, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Alexa Hartmann?

The National Provider Identifier (NPI) for Alexa Hartmann is 1588493597, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-29.