Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kaley Ellen Oneill, NP

Family Nurse Practitioner in Chelmsford, MA · enumerated 2023.

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

National Provider Identifier

1649042631

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Registry record

Entity type Individual (Type 1)

Name Kaley Ellen Oneill

Credential NP

Sex Female

Practice address 9 North Rd Unit 101, Chelmsford, MA, 01824

Phone (978) 458-2005

Enumeration date Oct 24, 2023

Last updated in NPPES Jul 30, 2025

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN2355631 (MA) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

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

Is NPI 1649042631 active?

Yes, as of the latest NPPES snapshot, NPI 1649042631 is active (record last updated 2025-07-30).

How do I verify Kaley Oneill's NPI record?

Cross-check NPI 1649042631 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-30.