The Team You Need for the Results You Deserve Kansas City's Leading Medical Malpractice & Serious Personal Injury Firm

undefinedJason P. Osteen

Kansas City Medical Malpractice Lawyer


Mr. Osteen has been with Dempsey & Kingsland, P.C. for more than 10 years. He has a tort litigation practice with an emphasis in the areas of trucking and motor vehicle collisions, medical malpractice, nursing home negligence, premises liability, and vaccine injuries.

Mr. Osteen was born and raised in the Kansas City area. He received his bachelor’s degree with distinction from the University of Kansas, where he was a recipient of the USC Upper Class Scholarship, a merit-based academic scholarship awarded to students after freshman year. Mr. Osteen was also invited to join Phi Beta Kappa, the nation’s oldest and most prestigious academic honor society. He received his Juris Doctorate from the University of Kansas School of Law, where he, as a student, taught a course in appellate advocacy.

Mr. Osteen has successfully tried cases in state and federal court and he has argued before the Supreme Court of Missouri. He has also tried numerous workers’ compensation cases and has achieved multiple permanent total disability awards and settlements that resulted in lifetime financial benefits to his clients.

Mr. Osteen is admitted to practice in Missouri and Kansas state courts, the United States District Courts for Kansas and the Western District of Missouri, and also the United States Court of Claims. He is a member of the Missouri Association of Trial Attorneys and has written amicus briefs on behalf of that organization. He is also a published author in that organization’s journal. Additionally, Mr. Osteen is a member of the American Association for Justice and the Kansas City Metropolitan Bar Association.

Areas of Practice

To get in touch with our firm, please call us at (816) 484-3776.

Client Testimonials

When We Make the Case for Our Clients
They Make the Case For Us
  • “Fast Resolution”

    Lori

  • “Your reputation for being the best was certainly demonstrated throughout this whole process.”

    Kaye H.

  • “We were very pleased with the way we were kept informed and guided through every step, all the way to the settlement date.”

    Martha H.

  • “Once again I can’t thank you all enough. I appreciate everything you’ve done for me. ”

    Cieara J.

  • “"Wonderful results"”

    Louie Caskey

  • “My wife and I had a wonderful experience working with Mr. Kingsland. Felt like he was on our side from day one.”

    Bill E.

  • “Bob Kingsland did the finest job of any attorney that I have ever worked with during the more than 25 years that I have consulted on medical cases.”

    D. A., M.D.

  • “I would always recommend Bob to anyone with a serious injury who needed an attorney.”

    Mary A.

  • “Mr. Kingsland and his staff were very thorough and stayed with my case for a prompt resolution.”

    Jennifer B.

  • “I am unbelievably grateful that we had such an outstanding attorney and staff to support us and help us through this experience!”

    Brittny O

  • “We were both very pleased with how quickly this matter was settled and are comfortable with the settlement amount.”

    Patricia L.

  • “I am very grateful.”

    Cindy P.

  • “I would recommend him to a friend. A great staff.”

    Stan G.

  • “His firm has excellent service when you are there in the office or over the phone.”

    Erica J.

  • “I would recommend him to anyone seeking an attorney for representation in a medical malpractice case or a personal injury case.”

    Gina R.

Why Choose Dempsey & Kingsland

Put Experience on Your Side
  • Proven Record of Success in Cases Like Yours

  • More than 80 Years of Combined Legal Experience

  • Dr. O’Shaughnessy & Cathy Brown RN Work with Us From Start to Finish

  • Accessible Attorneys that are Involved in Each Case

Verdicts & Settlements

Your Victories are Our Victories
  • $43.1 Million Settlement Vaccine leads to Paralysis/Quadriplegia
  • $7,326,934.00 Recovery Vaccine leads to cardiac/respiratory arrest and brain damage
  • $7.25 Million Settlement $7.25 million awarded family of worker who fell to his death from high rise building
  • $7 Million Settlement Breach of Policy Coverage/Bad Faith Claim
  • $5 Million Settlement Truck-Car Fatality Collision
  • $4 Million Settlement Head-on Collision
  • $2.69 Million Combined Settlements Elective Surgery Fraud/Malpractice
  • $2.3 million cumulative settlements Bariatric surgeries
  • $1.85 million settlement Worker Crushed by Forklift While Visiting Industrial Plant
  • $1.83 million recovery Vaccine Leads to Spinal Injury

Our Commitment to Excellence

  • Keenan Trial Institute
  • American Association for Justice
  • MATA - Helping to Balance the Scales of Justice
  • American Board of Trial Advocates
  • Best of the Bar
  • AV Peer Review Rated - AV - Martindale-Hubbell
  • Super Lawyers