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John D. O'Neill

Los Angeles, CA recognized lawyers icon Recognized in Ones to Watch since 2023
Simpson Thacher & Bartlett LLP

39 Best Lawyers awards

Awarded Practice Areas

Employee Benefits (ERISA) Law

Biography

John D. O'Neill is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law.

John D., who practices law in Los Angeles, California, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John D. is held by other top lawyers in the same geographic and legal practice area.

Simpson Thacher & Bartlett LLP

39 Best Lawyers awards

Overview

  • University of California Hastings College of the Law, J.D., graduated 2015
  • University of California Hastings College of the Law, J.D., graduated 2015

Client Testimonials

Awards & Focus

Recognized in Best Lawyers: Ones to Watch® in America 2026 for work in:
  • Employee Benefits (ERISA) Law

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