• Pennock Health AOPI

    Welcome to Advanced Orthopedic and Pain Institute

  • Pennock Health AOPI

    Welcome Dr. Keller to AOPI

  • Pennock Health AOPI

    Offering Anterior Total Hip Replacements

  • Pennock Health AOPI

    Offering the Latest in Pain Treatment Options by Tenex

Welcome to AOPI (Advanced Orthopedic & Pain Institute)

Your orthopedic experts, close to home. We specialize in total orthopedic care, physical medicine, and pain management. Our services include and are not limited to: Fracture Care, Total Joint Replacements, Neurostimulation & Stem Cell Therapy, Fibromyalgia Treatment, IME-Independent Medical Examinations, Surgeries of the shoulder, wrist, hand, hip, knee, ankle, and foot.

As the only orthopedic treatment center in Barry County, our Advanced Orthopedic & Pain Institute provides the highest degree of service in an efficient, personal, and professional manner. The Mission of the Advanced Orthopedic & Pain Institute is to maximize the musculoskeletal health and quality of life of each patient in the communities that we serve.

Our physicians are Board Certified or Board eligible by the American Board of Orthopedic Surgery and the American Osteopathic Physical Medicine and Rehabilitation.

Meet Your Advanced Orthopedic & Pain Institute Team

Eric Leep

Eric S. Leep, D.O.

Norman Davidson

Norman Davidson, PA-C

James Horton

James L. Horton, Jr., D.O.

Chris Born

Christopher H. Born, PA-C

David Heeringa

David J. Heeringa, D.O.

Corey Hirdes

Corey Hirdes, MSM, PA-C


Corey Hirdes

Nicole Neubauer, PA-C