$1M Failure to Diagnose Cancer
Results in Death
$43.1M Vaccine Results in Quadriplegia
$15.5M Medication Error
Results in Death
$7.32M Vaccine Results in
Cardiac Arrest
$7.25M Work-Related Injury
Results in Death
$7M Breach of Policy Coverage/Bad Faith (Death)
$5M Truck-Car Collision Results in Death
$4M Head-On Collision
Results in Serious Injuries
$2.69M Surgical Fraud/Malpractice
$2.3M Bariatric Surgical Fraud/Malpractice
$2M Rear-End Truck Collision
Results in Serious Injuries
$1.94M Failure to Monitor
Results in Amputation
$1.85M Worker Crushed
by Forklift
$1.83M Vaccine Results
in Paralysis
$1.75M Fall at Hospital
Results in Brain Injury
$1.75M Failure to Diagnose
Spinal Epidural Abscess
$1.5M Medication Error
Results in Brain Injury
$1.2M Vehicular Collision Results in Serious Injuries
$1.1M Rear End Truck Collision Results in Serious Injuries
$1M Tractor-Trailer Collision Results in Death
$1M Motorcycle Collision Results in Serious Injuries
$1M Failure to Diagnose Bowel Perforation
$1M Failure to Diagnose Spinal Epidural Abscess

Kansas City's Medical Malpractice and Catastrophic Personal Injury Law Firm

Resolving Serious Medical Malpractice, Catastrophic Personal Injury & Wrongful Death Cases Since 1986.

With little warning, your life and the lives of your loved ones may drastically change due to the negligent actions of another. Your health, your ability to earn a living, and your ability to enjoy a normal life may all be seriously harmed, sometimes permanently.

At Dempsey Kingsland Osteen, we understand the problems and crises that arise from serious injuries and deaths resulting from negligent acts. Those who cause serious, permanent injuries by their negligent action or inaction should be held accountable. Founded in 1986, our firm has maintained a commitment to excellence in representing the seriously injured and their families in negligence cases involving medical malpractice, catastrophic injuries, workplace accidents, and wrongful death.

Dempsey Kingsland Osteen

Jason Osteen, Robert Kingsland, Leland Dempsey,
Sydney Dowell, and Diane Plantz, JD, MD

Dempsey Kingsland Osteen
Medical Team

Jane O’Shaughnessy, MD and Cathy Brown, RN

A Personal Touch

Dempsey Kingsland Osteen has a large, dedicated staff and we pride ourselves on our personal service and our accessibility to clients. Our offices are conveniently located in downtown Kansas City with ample parking. We offer free consultation, including evening and weekend appointments. We will visit seriously injured clients or their family advocates at their homes or hospital rooms. We also have a medical professional, Diane Plantz, JD, MD, who brings a unique blend of legal expertise and medical insight. Diane enhances our firm’s ability to provide comprehensive and nuanced solutions for our clients’ legal needs.

Practice Areas

Medical Malpractice
Catastrophic Personal Injuries
Wrongful Death
Birth Injuries
Medical Errors
Nursing Home Injuries/Death
Auto Collisions
Truck Collisions

Why Choose DKO?

Well-Known and Respected Throughout Missouri and Eastern Kansas
Long Record of Success in Medical Malpractice, Catastrophic Personal Injury and Wrongful Death Cases
We File More Medical Malpractice Cases in the Kansas City Area than Any Other Law Firm
Outstanding In-House Medical Team
Personalized Service, Dedication to Optimal Results
No Fee Unless We Win Your Case
Have an Experienced Medical Professional On Staff

What Our Clients Are Saying

Bob Kingsland worked very hard on my case as well as the rest of the staff. Very honest and straightforward, and did not settle until they agreed on something my case deserved. Worth all the time and patience.

Kristi K.

I highly recommend Bob & Lee for the knowledge and sound advice they always give from start to finish.

Erika K.

We did not think we would ever need a lawyer. Leland F. Dempsey and his team helped us every step of the way. I am really satisfied with the results.

Mike. K

I have worked with Bob and Lee on multiple cases. One was a slip and fall case that went to a verdict in excess of $345,000. The other three cases were settlements in the six-figure range. Bob and Lee are both efficient and competent attorneys.

James D.
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