Standing With You

At Maples, Nix, & Diesselhorst, our dedicated personal injury lawyers advocate zealously for Oklahoma individuals and families affected by catastrophic injuries and wrongful death.

Your Advocate.
Your Guide.
Your Family.

If you or a loved one has been a victim of another’s negligence and has sustained catastrophic injuries or death, you need a hard-working, honest, and dedicated legal team to stand with you during these challenging times. When you choose Maples, Nix & Diesselhorst, we provide you with that team of attorneys and staff to guide you through the legal process successfully.  

Maples, Nix & Diesselhorst has a proven track record of recovering hundreds of millions of dollars for our clients through jury verdicts and settlements. Find out how we can help you by calling or emailing us today for a free consultation.

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Law Practice Areas

Medical
Malpractice

Our proven team helps individuals affected by medical malpractice such as delayed diagnosis, misdiagnosis, surgical errors, failure to treat, medical errors, and hospital negligence.

Nursing Home
Neglect & Abuse

We represent families of loved ones with severe injuries or death due to falls, bedsores, medication errors, or other nursing home abuses or neglect.

Birth Injury

Our experienced team understands the complex medical and legal issues of severe injuries sustained by newborn babies during the labor and delivery process.

Wrongful Death

If your loved one dies wrongfully due to someone else’s negligence, our team is prepared to help you navigate pursuing a wrongful death case.

Car Accidents

We represent people seriously injured in all types of motor vehicle accidents, including car collisions, motorcycle accidents, and recreational vehicle accidents.

Trucking Accidents

At Maples, Nix, & Diesselhorst, we represent people throughout Oklahoma who have been severely injured in all types of trucking accidents, including semi-trucks, 18-wheelers, and company vehicles.

Our Attorneys

Our Oklahoma law firm has a well-earned reputation for handling complex litigation and winning.  From the very beginning, your case is prepared with the end in mind. Our team immerses themselves in your case so you can succeed, either by settlement or in court. Over the past 30 years, our attorneys have recovered hundreds of millions of dollars in compensation for our clients.

At Maples, Nix, & Diesselhorst, our team of attorneys, staff, nurses, and investigators are committed to standing with you.

L. Ray Maples II

Glendell D. Nix

Jacob D. Diesselhorst

Nicole R. Snapp-Holloway

Travis Dunn

Andy J. Campbell

Cody Roberson

Shea Bracken

Brenda Doroteo

Our Legal Teams

Our MND Team

Whether your claim involves medical malpractice, nursing home neglect, birth injury or trucking/motor vehicle collision, Maples, Nix & Diesselhorst’s strength comes from the fact that each member of the MND Teams is committed to one goal: representing people who they or their loved ones have sustained catastrophic personal injury or death due to the negligence of another.  The MND Team stands with you. 

Medical Malpractice team at Maples, Nix & Diesselhorst

Medical Malpractice Team

Our team investigates complex cases on behalf of individuals and families affected by the negligence of doctors, other medical personnel, and hospitals. Medical malpractice includes misdiagnosis, surgical errors, failure to treat, failure to diagnose, and other types of medical negligence and medical error.

Birth Injury team at Maples, Nix & Diesselhorst

Birth Injury Team

Profound, catastrophic injuries that occur during the birthing process affect the entire family. Our experienced birth injury team offers representation to families throughout Oklahoma who have been victims of obstetric malpractice and birth injury or birth trauma.

Motor Vehicle Team at Maples Nix and Diesselhorst

Trucking & Auto
Accidents Team

Adrenaline runs high after a trucking or auto collision resulting in severe personal injury or death. Our seasoned team has the knowledge and the resources to obtain a successful resolution to your case if you or a loved one are seriously injured or dies in a collision with a truck or other vehicle due to the other driver’s negligence. 

Nursing Home Neglect team at Maples, Nix & Diesselhorst

Nursing Home Neglect &
Abuse Team

Our elders deserve to be treated with dignity, respect, and compassion. When you partner with our dedicated, experienced advocates, you are holding nursing homes accountable and helping future nursing home residents avoid the same negligent treatment. 

Firm coordination team at Maples, Nix & Diesselhorst

Firm Coordination Team

A vital part to any  law firm is the Firm Coordination Team.  Our team works behind the scenes supporting the legal teams and plays  an important role in our success.

Why Choose Maples, Nix & Diesselhorst

Catastrophic personal injuries and death are tragedies that occur daily. When it happens to you, or your family, it is a traumatic, stressful, and chaotic time. During this time, you want a knowledgeable, compassionate team that will guide you through the legal process and stand with you.

People choose Maples, Nix & Diesselhorst because our entire firm is a group of people united with one goal: to stand with individuals and families who have been affected by these tragedies due to the negligent act or omission to act by medical personnel or hospitals, nursing home facilities, or families affected by a birth injury, or seriously injured in trucking accidents or motor vehicle accidents. Our goal is to hold negligent parties accountable and to obtain justice.

We know that we can never change what happened to you or your loved ones, but by holding others accountable, we can help prevent your tragedy from happening to other families. By the end of the case, our team has done our job if our client feels that we fought for them, listened to them, advocated for them, and were always well prepared. 

If you or a loved one has suffered a severe personal injury, call 405-478-3737 to schedule a free case consultation with our team.

Meet the Partners

Originally two separate law firms, Maples Law Firm and Nix Law Group were united by their common passion for helping others. With their combined legal expertise, Maples, Nix, & Diesselhorst is a law firm founded on hard work, compassion, experience, and integrity. This is more than a job for our team. It’s a calling. It’s about advocating for individuals and families throughout Oklahoma who have been affected by catastrophic personal injury and wrongful death.

L. Ray Maples II

Glendell D. Nix

Jacob D. Diesselhorst

Verdicts & Settlements

Recovery through Settlement

Permanent Neurological Injury

$7,500,000

Recovery through Settlement

Permanent Neurological Injury

$6,500,000

Recovery through Jury Verdict

Failure to diagnose resulting in Wrongful death

$6,190,000

Recovery through Jury Verdict

Surgical error resulting in Leg Amputation

$5,750,000

Recovery through Jury Verdict

Failure to diagnose an infection causing permanent injuries

$4,500,000

Recovery through Settlement

Failure to treat resulting in Wrongful Death

$4,000,000

Recovery through Settlement

Negligently performed surgery resulting in Wrongful Death

$2,450,000

Recovery through Settlement

Failure to prevent blood clot resulting in Wrongful Death

$2,100,000

Recovery through Settlement

Failure to diagnose cardiac issue resulting in Wrongful Death

$2,000,000

Recovery through Settlement

Failure to treat resulting in Wrongful Death

$1,900,000