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Physician Assistant

Meghan A. O'Neill, PA

Sees patients in Lake Grove, NY · Plainview, NY · West Islip, NY … · New York

Summary

Meghan A. O'Neill, PA (Physician Assistant) is enrolled with Medicare at 6 practice locations in Lake Grove, NY, Plainview, NY and West Islip, NY and other places. NPI 1154725497. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(631) 315‑6758 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Meghan A. O'Neill, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

6Practice locations
Physician AssistantPrimary specialty
YesAccepts Medicare assignment
12Years since medical school (graduated 2014)
FemaleGender (as listed)
North Shore Lij Urgent Care PCGroup practice

Quick answers

Where does Meghan A. O'Neill see patients?
Medicare's clinician data lists 6 practice locations, including Lake Grove, NY, Plainview, NY and West Islip, NY. Call before your visit to confirm the address.
What is Meghan A. O'Neill's specialty?
Medicare lists Physician Assistant as the primary specialty.
Does Meghan A. O'Neill accept Medicare assignment?
Yes. Medicare's clinician data says Meghan A. O'Neill accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Meghan A. O'Neill?
(631) 315-6758, as listed in official Medicare / NPI Registry data.
What is Meghan A. O'Neill's NPI number?
1154725497. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Meghan A. O'Neill is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists Meghan A. O'Neill as a member of this group (CMS data updated 2026-10-02).

  • North Shore Lij Urgent Care PC390 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, New York →

Other physician assistants in Lake Grove

Clinicians with the same Medicare primary specialty in Lake Grove, NY — not a recommendation.

All physician assistants in Lake Grove →

Clinician information

CredentialPA
Graduation year2014
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1154725497
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians