Maria Walsh

Maria C. Walsh, Esq.

JAMS Mediator, Arbitrator and Referee/Special Master

Case Manager
Casey Fields
T: 1-617-228-9101
F: 617-228-0222
One Beacon Street, Suite 2210, Boston, MA 02108


Maria C. Walsh, Esq. has successfully mediated and arbitrated a range of matters involving the delivery of health care in the United States. Since joining JAMS in 2000, Ms. Walsh has worked with patients, doctors, nurses, technicians, support staff, administrators, insurers, government regulators, and others to resolve disputes related to the medical care community. Her experience as an administrative judge, litigator, corporate executive, non-profit volunteer and current Special Master to the Massachusetts Superior Court provides a breadth of perspective that contributes to her successful resolution of complex disputes.

Representative Health Care Matters

  • Disputes concerning licensing of laboratories
  • Disputes concerning leasing of medical provider facilities
  • Disputes concerning leasing, purchase or financing of medical equipment
  • Disputes involving long-term care facilities including construction disputes, financing disputes, and licensing disputes
  • Disputes arising from coding errors, or other billing practices
  • Disputes implicating Board Certification of provider
  • Disputes involving insurance, reinsurance and subrogation
  • Dispute involving alleged fraudulent scheme to market pharmaceuticals


  • Chair of Arbitration Panel resolving multi-party construction dispute of long term care facility
  • Mediated disputes involving reconstruction or expansion of long term care facilities


  • Mediated or arbitrated claims arising within medical practices, hospital teaching programs, laboratories and other workplaces, including claims involving:
    • Employment discrimination 
    • Wage and hour violations 
    • Breach of employment agreement 
    • Breach of non-competition provision of employment agreement 
    • Peer review procedure violations 
    • Credentialing disputes 
    • Wrongful discharge 
    • Retaliation and Whistleblower claims

Negligence, Tort and Malpractice 

  • Resolved claims of negligence in provision of medical care, including allegations of:
    • Failure to diagnose
    • Failure to follow-up
    • Failure to obtain informed consent
    • Failure to refer and failure to supervise
    • Failure to follow standard of care

Practice Purchase and Dissolution 

  • Mediated disputes arising from purchase or sale of medical and dental practices
  • Mediated agreements to dissolve or merge medical practices 
  • Resolved disputes involving: 
    • Issues of valuation 
    • HIPPA-compliant transfer of patient data 
    • Non-solicitation agreements 
    • Agreements restricting competition 
    • Assumption of financing 
    • Real estate leases 
    • Employment obligations
Completed Virtual ADR training conducted by the JAMS Institute, the training arm of JAMS. 

  • Moderator, An Insider’s Look at Alternative Dispute Resolution, February 2016
  • Best Lawyers in America, 2014-2022
  • Admitted to practice, Massachusetts and District of Columbia Bars and several Federal Districts
  • Massachusetts Bar Association, Alternative Dispute Resolution Committee, Co-Chair (2009-2010)
  • Massachusetts Bar Association, former Labor and Employment Law Section Chair, Governance Task Force, Access to Justice Committee Chair
  • Massachusetts Board of Bar Overseers Hearing Committee Member, (2002-2010)
  • Massachusetts Women’s Bar Association, Board of Directors (2002-2004)
  • Supervising Editor and contributing author: Ensuring Equal Justice, Addressing Cultural and Linguistic Differences in the Courts of Massachusetts, 1996
  • Editor-in-Chief and contributing author, A Judicial Guide to Labor and Employment Law, 1990, and First Supplement, 1993
  • Visiting Assistant Professor of Law, University of Dayton School of Law, Dayton, OH, 1992
  • Chairman or Member various non-profit organization Boards of Directors
  • Special Master, Asbestos Litigation, Massachusetts Superior Court (2002-current)
  • Of Counsel, Perkins, Smith & Cohen, LLC, Boston, MA (2000-2001, part-time)
  • Vice President, Plymouth Rock Assurance Corp., Boston, MA (1993-1999)
  • Chairman and Commissioner, Massachusetts Labor Relations Commission, Boston, MA (1983-1993)
  • Trial Attorney, National Labor Relations Board, Washington, D.C. and Boston, MA (1978-1983)
  • J.D., New York University School of Law (Root-Tilden Scholar) 1978
  • A.B., Vassar College/M.I.T. 1973

Counsel Comments

    • “[W]ithout question, the most effective mediator I have ever encountered. Maria possesses seemingly infinite patience and is the consummate diplomat, but she is also not afraid to be direct when necessary to drive a point home. She is able to quickly win the trust and the respect of all parties. Near-miraculous settlements are often the result.”
      - Boston area Partner, Labor, Employment & Benefits Practice Chair
    • “Maria is a terrific mediator who takes the appropriate amount of time to let both sides tell their story. In doing so she gains the trust of everyone on both sides. She is smart and just 'gets it.'”
      - Boston Litigator
    • “There are not enough good things to say about Maria. She is patient and knows just how to communicate with my clients. She makes them feel comfortable and part of the process. She gets the job done.”
      - Plaintiff Counsel
    • “On multiple occasions, Maria has mediated settlements of cases that I considered unsettleable.  In more than one of those, I had still considered the case unsettleable at 3 pm the day of the mediation. She has the highest emotional IQ of just about anyone I’ve ever met.” 
      - New York Counsel
    • “We use Maria for our thorniest matters and she has always helped us resolve them in mediation. She takes the time to learn the matter and to build a rapport with the client (both sides, I am confident; no “judging” and proclaiming a settlement amount), spots leverage points that we may not even have flagged, and gently but firmly points out the strengths and weaknesses of cases, the risks, and the value of settlement. She is dogged (some of our mediations have gone into the wee hours), available for follow up consultations and assistance, and is the consummate professional. She’s fabulous.”
    • “Impressed with Maria Walsh's ability to grasp seemingly contradictory evidence, understand plaintiff distress, yet remain neutral and seemingly balance both sides objectives.”
    • “Maria Walsh is an extremely skilled mediator.”
    • “Our mediator, Maria Walsh, was respectful and compassionate with my client. She kept the parties moving without turning us against each other. I was not sure the case would settle. It was due to her excellent skills we were able come to a deal.”
    • “Maria Walsh was engaged, thoughtful, creative, and overall just great.”
    • “Maria Walsh was very effective.”
    • “Maria is amazing. She facilitated a settlement in a very difficult case where it did not seem likely. Her ability to understand and acknowledge the personal and emotional aspects of the parties while also honing in on the important legal issues is a special skill.”
    • “Maria Walsh did a remarkable job navigating the personalities in the dispute and defusing issues that could have negated settlement.”
    • “Maria Walsh was fantastic in getting the parties to settle a difficult sexual harassment matter involving multiple parties.”
    • “Maria Walsh's persistence was extraordinary and resulted in a settlement that we did not believe would be possible.”



Practice Areas

Available nationwide


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