Sioux City, IA
Sheldon, IA


John Gray is a trial attorney who has represented individuals and companies in state and federal courts in Iowa, Nebraska, and South Dakota for more than 35 years, particularly in the defense of professional malpractice claims, and in insurance law, business and personal injury litigation for both plaintiffs and defendants. John also represents these clients in mediation and arbitration.

Before joining the Heidman Law Firm, John served as a law clerk first to The Honorable Donald P. Lay, Chief Judge, Eighth Circuit Court of Appeals and then to The Honorable Louis Schultz, Iowa Supreme Court.

Professional Organizations

  • American Bar Association
  • Iowa State Bar Association
  • Nebraska State Bar Association
  • South Dakota State Bar Association
  • Woodbury County Bar Association – former President
  • Iowa Defense Counsel Association

Special Recognition

  • American College of Trial Lawyers – State Chair 2020 — 2022
  • Best Lawyers in America – Medical Malpractice Defense
  • Iowa Academy of Trial Lawyers – President 2021 — 2022
  • Iowa State Bar Association – Community Service Award 2003
  • Iowa Judicial Nominating Commissioner
  • Martindale-Hubbell® Bar Register of Preeminent Lawyers™


Support Staff

Deanne Strachan
Phone: 712-255-8838
Ann Schmidt
Phone: 712-255-8838

Practice Areas



  • Iowa
  • Nebraska
  • South Dakota
  • U.S. District Court, Northern and Southern Districts of Iowa
  • U.S. District Court, District of Nebraska
  • U.S. District Court, District of South Dakota
  • Eighth Circuit Court of Appeal


  • University of Iowa, Juris Doctor 1981
  • University of Iowa, Bachelor of Arts 1978

Community Involvement

  • Iowa Natural Heritage Foundation
  • Saturday in the Park, Inc.
  • Siouxland Trails Foundation