Certified Biote Provider

Innovative Pain
Management from
a Compassionate Team.

We Are Regenirex

At Regenirex, we’ve been providing patients with 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. In the last few years we have added hormone optimization to our services and in the very near future we will be offering custom, individualized, precision health and wellness care.

Meet Our Providers

At the heart of Regenirex is our compassionate team of pain management providers. We deeply value the health and wellbeing of each and every patient we see.


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.


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.


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 Regenirex 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 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.

Jake Andreasen


Jake Andreasen is a nationally certified physician assistant. He earned his Bachelors of Biology at the University of Nebraska at Kearney and pursued his Masters of Physician Assistant Studies with the University of Nebraska Medical Center. During his time at UNMC, he gained a strong interest in pain management and psychiatry, and he hopes to educate patients on the most up-to-date therapeutic approaches for their physical and emotional health. He is an advocate against the stigma that surrounds mental health issues, and he strives to help any patient in need while cultivating positive relationships. He is a member of the AAPA as well as the UNMC alumni network.


We are now partnering with Matt Barth, DPT, and his assistant Cambrie from Elite Chiropractic and Wellness to provide physical therapy to patients in our clinic. We genuinely believe that to conquer chronic pain, injection therapy should be used in conjunction with physical therapy and exercise to help you achieve the best results. Matt will be available for new patient evaluations on Tuesday mornings, and Cambrie will be available to carry out treatment plans on Tuesdays and Thursdays.

Matt is a former collegiate football player who has spent nearly his entire professional life dedicated to understanding and treating human movement to optimize an individual’s capacity for performance and pain-free lifestyle.  After graduating from the University of Nebraska Medical Center in 2012, he has spent the last 9 years treating people in and around the Kearney area. He has a deep understanding of the human body and different sources of pain. Click here to learn more about Matt’s experience.


Prairie Miles is a licensed independent mental health practitioner with 19 years of experience working in the outpatient, inpatient, & hospice settings. Areas of expertise include working with clients with stress and anxiety, relationship & marriage conflict, coping with grief and loss, depression, motivation, self esteem, & life changes transitions.

Prairie graduated in 2000 with a Bachelor’s of Arts in Psychology from Hastings College and then in 2003 received a Master’s of Science in Education in Community Counseling from the University of Nebraska-Kearney. Modalities of therapy that she prefers include person centered, solution focused, cognitive behavioral therapy, and some dialectical therapy skills when applicable.

At Regenirex, we strive to create an open and safe environment with clients. Your thoughts and feelings can be shared without fear of judgment. It takes courage to seek out a more fulfilling and happier life and to take the first steps towards a change. We look forward to supporting & empowering you on that journey.

By using the latest technology and techniques, we offer the best natural and effective pain management solutions in Kearney.