Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ashley O'Neill, BCBA

Behavior Analyst in Tinley Park, IL · enumerated 2020.

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

National Provider Identifier

1447899687

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Registry record

Entity type Individual (Type 1)

Name Ashley O'Neill

Credential BCBA

Sex Female

Practice address 8200 185th St Ste Ab, Tinley Park, IL, 60487

Phone (708) 580-0440

Enumeration date Jan 6, 2020

Last updated in NPPES Aug 12, 2021

Taxonomy & licenses

103K00000X Behavior Analyst 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Ashley O'Neill practice?

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

What is the NPI number for Ashley O'Neill?

The National Provider Identifier (NPI) for Ashley O'Neill is 1447899687, 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 2021-08-12.