1. Home
  2. Directory
  3. Massachusetts
  4. Arlington
  5. Social Worker
  6. NPI Profile

LAUREN ELISE ONEILL MSW, LCSW
NPI 1548790132
Social Worker - Clinical in Arlington, MA

Active since June 15, 2017PECOS Enrolled
2 MILL STREET SUITE 4 & 308, ARLINGTON, MA 02476(617) 405-5735 Get Directions Write a Review

NPPES record last updated: February 22, 2023. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Feb 22, 2023, Jul 21, 2022, Mar 17, 2018 and 1 more (4 updates tracked since 2017).

About Lauren Elise Oneill Msw, Lcsw NPPES

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

LAUREN ELISE ONEILL MSW, LCSW (NPI 1548790132) is an individual clinical provider in Arlington, Massachusetts, licensed in Massachusetts (228980) and active in the NPI registry since June 2017. She is enrolled in Medicare PECOS and maintains a secondary practice location in Beverly.

NPPES Registry Identity

NPI1548790132
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameLAUREN ELISE ONEILLCredential: MSW, LCSW
Location Address2 MILL STREET SUITE 4 & 308Arlington, MA 02476-4784
Mailing Address2 Mill Street Suite 4 & 308Arlington, MA 02476 · (617) 405-5735
Phone(617) 405-5735
Sole ProprietorNo
Enumeration DateJune 15, 2017
Last NPPES UpdateFebruary 22, 20234 updates tracked since enumeration
NPPES CertifiedFebruary 20, 2023
✔ NPI 1548790132 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in MA · 228980
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
2 MILL STREET SUITE 4 & 308, Arlington, MA 02476
Open in Google Maps ↗

Secondary Practice Location 1

Location 1800 Cummings Center, 364UBeverly, MA 01915 · Phone (978) 998-3680 · Fax (978) 922-0098

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Harvard Pilgrim Health Care.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Lauren Elise Oneill Msw, Lcsw 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 Reassignment

Medicare enrollment records show Lauren Oneill reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Child And Family Psychological Services, PLLC
13 mi
Psychologist
89 ACCESS RD, SUITE 24
Norwood, MA 02062
  • Reassigned Medicare billing, Massachusetts enrollment
  • 349 clinicians in this Medicare group
NPI 1912987181 (781) 551-0999

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 02476 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
$0.00 typical visit price
range $63.72 – $189.86
Typical copayment $0.00 (range $15.93 – $47.46)
Most-billed visit code NA
Established Patient
$78.84 typical visit price
range $21.07 – $155.29
Typical copayment $19.71 (range $5.26 – $38.82)
Most-billed visit code 99213
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 Lauren Oneill's NPI number?

The NPI number for Lauren Oneill is 1548790132. It was assigned to this individual provider in the NPPES registry on June 15, 2017.

Where is Lauren Oneill located?

Lauren Oneill practices at 2 Mill Street Suite 4 & 308, Arlington, MA 02476. The listed phone number is (617) 405-5735.

What is Lauren Oneill's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Lauren Oneill enrolled in Medicare?

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

Which organization bills Medicare for Lauren Oneill's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lauren Oneill reassigns Medicare benefits to Child And Family Psychological Services, PLLC (Norwood, MA). The 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 Lauren Oneill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lauren Oneill accept?

Health plans from Harvard Pilgrim Health Care list Lauren Oneill as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Lauren Oneill was last updated on February 22, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.