Certified Biote Provider

About Regenirex

Drs. Burt and Pam McKeag and the staff at Regenirex have been providing patients innovative and effective care for pain management in Kearney, across Nebraska, and the Great Plains since 2013. We’re proud of our reputation for advancing minimally-invasive, non-opioid solutions for chronic pain, resulting in positive outcomes and better quality of life for our patients. 


The following is a partial list of the pain conditions we treat. If you are in pain but you don’t see your specific condition listed don’t hesitate to call for a consultation. If we can’t treat you we can most likely get you to someone who can.

Spinal Pain, including pain due to Disc Disorders, Arthritis, Spinal Stenosis, Post-laminectomy Pain, Radiculopathy (Sciatica) & Compression Fractures

Arthritic Pain of Major Joints, including Shoulders, Hips, Knees & Ankles

Lateral Epicondylitis (Tennis Elbow)

Achilles Tendonitis

Rotator Cuff & Labral Tears

Fibromyalgia & Myofascial Pain

Complex Regional Pain Syndrome


Pain associated with Cancer

Post-hernia Repair Pain

Post-herpetic Neuralgia

Central Pain or Post Stroke Pain

Peripheral Neuropathy, including Diabetic

Meralgia Paresthetica


We offer the best Pain Management Solutions in Kearney and we utilize the latest technology and techniques in our practice.

Epidural Steroid Injections (all epidurals are performed with x-ray guidance)

Facet Injections 

Radio-frequency Ablation

Sympathetic Nerve Blocks

Trigger Point Injections

Vertebroplasty & Kyphoplasty

Sacroiliac Joint Injections

Ilioinguinal Nerve Blocks

Spinal Cord Stimulation – Watch Videos

Intrathecal Drug Delivery

Dorsal Root Ganglion Stimulation

Medical Management

Regenerative Medicine Techniques, including Platelet Rich Plasma Injections & Stem Cell Injections (performed using both bone marrow-derived stem cells & mesenchymal stem cells derived from abdominal fat)

Biote Certified Providers – Learn More

Biote Certified Provider Seal [English]
Regenirex is a trusted, certified provider of Biote.

We help balance your hormones through bioidentical hormone replacement therapy (BHRT) using pellets. By doing so, it can help alleviate symptoms such as exhaustion, stress, brain fog, weight gain, sleep disturbances, and more. The goal of this therapy is to help you live better and stronger. We are here to address any concerns you may have. Schedule an appointment with us to see if Biote therapy is right for you.

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Stay connected to your health before, during, and after visits through our convenient patient portal, where you can access your health information, schedule an appointment, or make a payment online.

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Meet Our Pain Management Providers

Burt McKeag, MD

Burt McKeag, MD

Dr. McKeag is board certified in anesthesiology and pain medicine by the American Board of Anesthesiology. He graduated from the University of Nebraska Medical Center and then did his residency in anesthesiology at the University of Kansas Medical Center. He practiced anesthesia for seven years and then returned to the University of Nebraska Medical Center where he completed a fellowship in pain management. He is the Medical Director of Kearney Pain Treatment Center. He practices pain management at Regenirex, LLC in Kearney, Nebraska. He has been using regenerative techniques to treat his patients since 2015. He is passionate about treating his patient’s underlying problem rather than covering up symptoms with narcotics.

Pam McKeag, MD

Dr. Pamela McKeag is board certified in anesthesiology by the American Board of Anesthesiology. She graduated from the University of Nebraska Medical Center and did her residency in anesthesiology at the University of Kansas Medical Center. Pam has a passion for health and wellness and wants to help people prevent disease and have the energy to pursue their purpose in life. She has completed training in advanced bio-identical hormone therapy through Worldlink Medical and a fellowship in precision medicine through Wild Health.

Pam McKeag, MD
Bryan Messbarger, APRN

Bryan Messbarger, APRN

Bryan Messbarger is a nationally certified Family Nurse Practitioner. He earned his Bachelors of Science in Nursing and Master of Science in Nursing degrees from the University of Nebraska Medical Center. He worked as a registered nurse at Good Samaritan Hospital for nearly 10 years and spent most of his time there in the intensive care unit. His time in critical care motivated him to help people prevent potential tragedies, and he transitioned to Regenerix in order to encourage people in wellness and healthy pain management. He has been recognized with the Nebraska Organ Recovery Service Green Cape Award, The DAISY Award for Extraordinary Nurses, and the Charlotte Burgess Award for Outstanding Masters Graduates. In his time off he enjoys playing music and spending time with his wife and two kids.

Christina Knispel, APRN

Christina Knispel was raised in Kearney, Nebraska, and is a nationally certified nurse practitioner specializing in pain management. She earned her Bachelors of Science in Nursing from the University of Nebraska Medical Center. Christina later completed her Master of Science in Nursing from the University of Nebraska Medical Center where she graduated top of her class with distinguished honors. Prior to working in pain management, she worked as a registered nurse in critical care, cardiology, family practice, and as a nurse practitioner in Rheumatology. She is a member of the Academy of Integrative Pain Management, Association of Rheumatology Health Professionals, and Sigma Theta Tau nursing honor society.

Christina Knispel, APRN

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