Mark D. Samson


3101 North Central Avenue, Suite 1400
Phoenix, Arizona 85012-2643

P: 602.230.6323
F: 602.248.2822



As a licensed veterinarian, Mark has the medical knowledge that helps get his clients the results they deserve. Given his strong medical science background, Mark’s practice focuses on tort law, including medical negligence, product liability, and other significant personal injury cases. He has nearly 30 years of experience litigating medical malpractice cases with victories including the landmark Edwards verdict, a transfusion-associated AIDS case which remains one of the largest personal injury verdicts in Arizona history. Mark was born in New York, but he moved to the Phoenix area in 1959 and grew up there. He practiced from 1986 to 1995 at Meyer, Hendricks, Victor, Osborn & Maledon, becoming a member in 1992. In 1995, Mark formed Dalton Gotto Samson & Kilgard, P.L.C. (“DGSK”) and was one of the members of DGSK who formed Keller Rohrback P.L.C. in 2002.

Bar and Court Admissions

1986, Arizona 

2008, Washington, D.C.


Arizona State University – B.S., summa cum laude, 1976, Bio-Ag Sciences 

Washington State University College of Veterinary Medicine – D.V.M., summa cum laude, 1980 

Washington State University College of Veterinary Medicine – M.S., 1983, Veterinary Anatomy 

Arizona State University College of Law – J.D., summa cum laude, 1986, Order of the Coif

Professional and Civic Involvement

Maricopa County Bar Association, Member 

Arizona State Bar Association, Member 

American Association for Justice, Member 

Arizona Association for Justice, Sustaining Member

Articles & Presentations

Speaker, National Meeting of American Veterinary Medical Law Association, Tort and regulatory issues affecting veterinarians,1995.

Chairman, Maricopa County Bar Association Seminar on Anatomy, 1994.

Chairman, Maricopa County Bar Association Seminar on Medical Malpractice in the Ages of Disclosure.

Speaker, Arizona Trial Lawyers Association Medical Malpractice Seminar, Use of medical literature in the courtroom, 1996; New legal theories in medical malpractice, 1999.

Co-Chair, Arizona Trial Lawyers Association, Anatomy of Pain, 2002.

Speaker, Arizona Veterinary Medical Association, Application of legal principles to veterinary medicine, 1999-2003.

Speaker Arizona Paralegal Association, Settlement conferences versus trial in medical malpractice cases, 2002; Changes and issues in Arizona’s ethical rules for attorneys, 2003.

Maricopa County Bar Association, Punitive Damages after Campbell v. State Farm, May 2003.

Chairman, Arizona State Bar, New Ethical Rules in Arizona, Oct. 2003.

Maricopa County Bar Association, Liens Again, 2004.

Maricopa County Bar Association, Arizona Appellate Update, 2005.

Co-Chairman, Arizona Trial Lawyers Association, Liens, Jan. 2006.

Blackwell’s 5-Minute Veterinary Manager, Negotiation (2006).

Chairman, Arizona Trial Lawyers Association, Rapid Fire on Litigation Issues, Oct. 2006.

Co-Chairman, Arizona Trial Lawyers Association, Trial Practice – Damages, 2007.

Arizona Trial Lawyers Association, Issues in FTCA Claims, 2008.

Arizona Trial Lawyers Association, Loss of a Chance in Med Mal Cases, 2008.

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