O'Brien and Ryan, LLP - Attorneys at Law
Melissa L. Mazur
Email: mmazur@obrlaw.com
Main: (610) 834-6258
Fax: (610) 834-1749
Assistant: Maureen Centofante
Email: mcentofante@obrlaw.com
Main: (610) 834-6236

Melissa's current practice is focused on medical malpractice, and represents the interests of hospitals and medical professionals in the defense of medical malpractice claims.  Melissa participates in all stages of litigation, from initial client meetings through the preparation of trial.  Prior to joining the firm in 2008, Melissa worked briefly as a law clerk for the United States Senate on the Judiciary in Washington, D.C., providing legal support during judicial nomination hearings.  She is a member of the Young Lawyers Division of the Montgomery County Bar Association and also serves as an arbitrator for Montgomery County.

In addition to her responsibilities at the firm, Melissa is heavily involved in her community.  She is a member of the American Cancer Society Cancer Action Network, which advocates to lawmakers, for the community, in bringing awareness and revisions to the laws and policies related to cancer and cancer awareness, as well as a Patient Ride Coordinator for "Philly Patient Ride", a program that provides cancer patients no-cost transportation to and from their cancer treatments among Philadelphia hospitals. In addition, Melissa is the main organizer of an annual charity event to raise money for Lehigh Valley Senior Services Council, which promotes awareness and provides services to senior citizens, and has volunteered her time for the Montgomery County Child Advocacy Project.

Practice Areas:

Recent Representative Matters:

Bar Admissions:

  • Pennsylvania, 2008
  • New Jersey, 2008
  • U.S. District Court Eastern District of Pennsylvania, 2014
  • U.S. District Court of New Jersey, 2016


  • Thomas M. Cooley Law School, Lansing, Michigan, 2007, J.D.
  • Moravian College, Bethlehem, Pennsylvania, 2004, B.A.
  • National Institute of Trial Advocacy
    • Trial Skills, 2016
      • 60 Hour Intensive Professional Program
    • Deposition Skills, 2015
      • 25 Hour Intensive Professional Program

Professional Associations and Memberships:

  • American Bar Association
  • Pennsylvania Bar Association
  • Montgomery County Bar Association
    • Member - Young Lawyers Section
  • American Cancer Society Cancer Action Network
  • Philly Patient Ride

Classes/Seminars Taught:

  • Speaker, Legal Issues in Nursing, LaSalle School of Nursing, February 12, 2019
  • Lecturer, Professional Liability and Medical Documentation, University of Pennsylvania School of Nursing, February 11, 2019
  • Guest Speaker, "Legal Issues, Negligence and Malpractice", LaSalle University School of Nursing and Health Sciences, October 2018
  • Guest Speaker, Professional Liability and Medical Documentation, Penn School of Nursing, September 2018
  • Guest Speaker, Professional Practice Course-Professional Negligence and Malpractice, Thomas Jefferson University, College of Nursing, September 2018
  • Mock Trial, Philadelphia Obstetrical Society, May 2017
  • Medical Malpractice Defense Panel, Villanova University, March 2016
  • Medical Malpractice Defense Panel, Villanova University, April 2015

Hickory Pointe
2250 Hickory Rd, Suite 300
Plymouth Meeting, PA 19462
Phone: (610) 834-8800
Fax: (610) 834-1749