Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Chloe Oneill, ADT

Q: What is the NPI number for Chloe Oneill?

The National Provider Identifier (NPI) for Chloe Oneill is 1356156996, a Type 1 (individual) record in the CMS NPPES registry.

Addiction (Substance Use Disorder) Counselor in Centreville, MD · enumerated 2025.

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

National Provider Identifier

1356156996

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Registry record

Entity type Individual (Type 1)

Name Chloe Oneill

Credential ADT

Sex Female

Practice address Centreville, MD, 21617

Phone (443) 262-0425

Enumeration date Feb 11, 2025

Last updated in NPPES Feb 11, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License ADT2813 (MD) 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

What is the NPI number for Chloe Oneill?

The National Provider Identifier (NPI) for Chloe Oneill is 1356156996, a Type 1 (individual) record in the CMS NPPES registry.

Where does Chloe Oneill practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-11.