• Orthopedics

    United Bone and Joint Institute

    Treating bone, joint, and spine problems

  • Meet Our Doctors

    • Alan Gegenheimer, D.O.

      Dr. Gegenheimer, from his 12 years of Naval Service and 12 years of private practice, has extensive experience with complicated sports and trauma injuries and advanced arthroscopic techniques for the shoulder, knee, wrist and ankle. 

      Dr. Gegenheimer uses an advanced approach to total shoulder, hip and knee replacement.  For example, he is the only one in the area performing  Biomet XP knee replacement  surgery which preserves all ligaments so your knee will feel like a normal knee again when playing sports.   He will take the time and together come up with a plan that is just right for you.  Dr. Gegenheimer is the sports medicine physician for Indian Trail High School and Tremper High School.

      Learn more about Dr. Gegenheimer

    • Michael Jacker, M.D.

      Dr. Jacker is an experienced orthopedic surgeon with extensive training at distinguished schools, including Harvard University.    

      Dr. Jacker currently practices general orthopedic surgery including total joint replacement, unicompartmental knee replacement, rotator cuff surgery, fracture management, as well as surgical and non-operative management of most orthopedic conditions. 

      Learn more about Dr. Jacker

    • Craig Moe, M.D.

      Dr. Moe is a board  certified orthopedic surgeon with over 16 years of experience.  He specializes in knee and hip replacement surgery, including difficult and revision cases.  Additionally, Dr. Moe treats fractures and sports injuries.

      Dr. Moe is passionate about educating his patients about treatment options available and works with them to find the best option whether it is a surgical or non-surgical approach. 


      Learn more about Dr. Moe

    • Diagnostic Services

      The Diabetic Clinic at United Hospital System employs a team of doctors, nurse educators, clinical pharmacists, dieticians and social workers. The clinic educates and supports patients with diabetes.

    • Physical Therapy

      The Diabetic Clinic at United Hospital System employs a team of doctors, nurse educators, clinical pharmacists, dieticians and social workers. The clinic educates and supports patients with diabetes.

    • Hip and Knee Center

      The Diabetic Clinic at United Hospital System employs a team of doctors, nurse educators, clinical pharmacists, dieticians and social workers. The clinic educates and supports patients with diabetes.

    • Patient Forms

      The Diabetic Clinic at United Hospital System employs a team of doctors, nurse educators, clinical pharmacists, dieticians and social workers. The clinic educates and supports patients with diabetes.

  • Locations


    St. Catherine’s Medical Office Building
    9697 St. Catherine Drive 
    Pleasant Prairie, WI 53158
    (262) 577-8000

    Kenosha Medical Center Campus
    6308 Eighth Avenue
    Kenosha, Wisconsin 53143
    (262) 551-4600

    Gurnee Physician Clinic
    1790 Nations Drive Suite 220 
    Gurnee, IL 60031
    (847) 244-9740

    Paddock Lake Physician Clinic
    7322 236th Avenue 
    Paddock Lake, Wisconsin 53168
    (262) 577-8460