1. Home
  2. Directory
  3. Massachusetts
  4. Chelmsford
  5. Nurse Practitioner
  6. NPI Profile

KALEY ELLEN ONEILL NP
NPI 1649042631
Nurse Practitioner - Family in Chelmsford, MA

Active since October 24, 2023PECOS Enrolled
9 NORTH RD UNIT 101, CHELMSFORD, MA 01824(978) 458-2005 Get Directions Write a Review

NPPES record last updated: July 30, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 4, 2025, Oct 24, 2023 (2 updates tracked since 2023).

About Kaley Ellen Oneill Np NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KALEY ELLEN ONEILL NP (NPI 1649042631) is an individual family provider in Chelmsford, Massachusetts, licensed in Massachusetts (RN2355631) and active in the NPI registry since October 2023. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1649042631
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameKALEY ELLEN ONEILLCredential: NP
Location Address9 NORTH RD UNIT 101Chelmsford, MA 01824-2755
Mailing Address9 North Rd Unit 101Chelmsford, MA 01824-2755 · (978) 458-2005
Phone(978) 458-2005
Sole ProprietorNo
Enumeration DateOctober 24, 2023
Last NPPES UpdateJuly 30, 20252 updates tracked since enumeration
NPPES CertifiedJuly 30, 2025
✔ NPI 1649042631 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in MA · RN2355631
9 NORTH RD UNIT 101, Chelmsford, MA 01824
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kaley Ellen Oneill Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Kaley Oneill reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Commonwealth Medical Practice LLC
5.4 mi
Internal Medicine
505 NASHUA RD STE 8
Dracut, MA 01826
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6 clinicians in this Medicare group
NPI 1073121489 (978) 957-4474
Todays Wellness PLLC
13 mi
Internal Medicine
790 TURNPIKE ST
North Andover, MA 01845
  • Reassigned Medicare billing, Massachusetts enrollment
  • 13 clinicians in this Medicare group
NPI 1891166559 (978) 687-2273

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01824 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Kaley Oneill's NPI number?

The NPI number for Kaley Oneill is 1649042631. It was assigned to this individual provider in the NPPES registry on October 24, 2023.

Where is Kaley Oneill located?

Kaley Oneill practices at 9 North Rd Unit 101, Chelmsford, MA 01824. The listed phone number is (978) 458-2005.

What is Kaley Oneill's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Kaley Oneill enrolled in Medicare?

Yes. Kaley Oneill is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Kaley Oneill's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kaley Oneill reassigns Medicare benefits to 2 organizations: Commonwealth Medical Practice LLC (Dracut, MA) and Todays Wellness PLLC (North Andover, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Kaley Oneill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Kaley Oneill was last updated on July 30, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.