P. Oswin (Os) Chrisman

Hon. P. Oswin (Os) Chrisman (Ret.)

JAMS Mediator, Arbitrator, Special Master

Case Manager
Carolina El'Azar
T: 214-891-4525
F: 214-720-6010
8401 N. Central Expressway, Suite 610, Dallas, TX 75225

P. Oswin (Os) Chrisman is available to conduct cases virtually. JAMS is equipped to provide virtual ADR services on a variety of online platforms, including Zoom, Microsoft Teams, WebEx, and more.


Judge Chrisman has successfully resolved numerous disputes as a mediator and arbitrator. His experience in the legal profession is both extensive and varied with 13 years of experience as a judge in the family, probate, and district courts of Dallas County and 25 years as a practicing attorney with major law firms in the Dallas area.

He has served as a Judge in District Court, Probate Court, Domestic Relations Court, and Family District Court. A founding member and chair of the Dallas Dispute Mediation Service, he served on committees to set up dispute resolution programs for the Court of Appeals and the Supreme Court of Texas. Judge Chrisman also served as chair of the Legislature Oversight Committee for the Lieutenant Governor and Speaker of the House of the State of Texas to revise the Mental Health Code of the State of Texas.

Judge Chrisman served with distinction as:
  • Chair of the Texas Institute of Health Research
  • Chair of Baylor Health Care Systems, Inc.
  • Chair of Baylor University Medical System
  • Chair of Mental Health Association of Dallas County
  • Chair of Mental Health Association in Texas

His experience in the resolution of health care disputes have included the following types of issues:
  • Hospital mergers
  • Human resources
  • Licensure
  • Malpractice
  • Managed care
  • Medical staff issues
  • Medicare/Medicaid
  • Practice sales
  • Regulatory (OSHA, CIIA, etc.) matters
  • Reimbursement

Representative Matters

  • Recent health care matters resolved by Judge Chrisman include the following:
    • Multi-million dollar employment breach of contract dispute between a medical group and hostile physician
    • Hospital Labor Employment; termination of senior nurse for falsifying hospital records with race and age discrimination issues
    • Contract employment dispute with major health service provider involving age and health discrimination
    • Integrated health care system dispute regarding acquisition of helicopter and breach of contract
    • Managed care contract dispute between major doctor group and drug company regarding reimbursement rates and drug pricing
    • Medicare/Medicaid reimbursement involving payment for provider services
    • Wrongful termination case between provider and medical staff governing board involving reimbursement issues in regard to collections and allocations
    • Wrongful termination of hospital CEO regarding for cause termination
    • Wrongful termination of hospital CFO for Medicare/Medicaid reimbursement issues
    • License status issue regarding nursing practice and alleged misconduct
    • Medical staff membership matters involving right to practice at medical facility and right to practice in group practice
    • Wrongful termination of CE of specialty hospital involving Medicare/Medicaid and regulatory reimbursement issues
Completed Virtual ADR training conducted by the JAMS Institute, the training arm of JAMS. 

  • Fellow, Texas Bar Foundation
  • Member: Dallas Bar Association; Dallas Estate Council; Texas Bar Association (Chairman, Committee on Judicial Ethics, 1981); American Bar Association; Texas Association of Mediators; Dallas Association of Attorney-Mediators; Society of Professionals in Dispute Resolution (SPIDR)
  • Chair - Texas Institute of Health Research
  • Former Chair: Dallas Baptist University Foundation (1986); Dallas County Juvenile Board (1978-1979); Legislative Oversight Committee for Mental Health
  • Past Chair/Board of Trustees; Baylor University Medical Center; Baylor Health Care System; Southwestern Baptist Theological Seminary
  • Party President/Board of Directors: Dispute Mediation Services of Dallas; Past President Mental Health Association of Texas; Dallas Council on Alcoholism; Committee on Judicial Conduct
  • Past Treasurer, United Way of Metropolitan Dallas
  • Author, “Released Time Programs,” Baylor Law Review and A Journal of Church and State
  • Co-Author, Texas Probate System-Dependent Administration, published by the State Bar of Texas
  • Judge, Sabine Valley Child Protection Courts, 2002
  • Of Counsel, Fulbright & Jaworski, 1997-2001
  • Partner, Vial, Hamilton, Koch & Knox, 1982-1997
  • Judge, 44th Judicial District Court, 1978-1982
  • Judge, 330th Family District Court, 1977-1978
  • Judge, Domestic Relations Court No. 4, Dallas County, 1973-1977
  • Judge, Probate Court No. 2, Dallas County, 1969-1973
  • Partner, Green, Gilmore, Chrisman & Rothpleetz, 1968-1969
  • Dallas Bar Association ADR Training Program
  • State Bar of Texas ADR Program
  • Harvard University School of Law Program of Instruction for Lawyers in Negotiation and Mediation
  • J.D., Baylor University, 1959
  • B.A., Baylor University, 1957



Practice Areas

Available nationwide


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