Welcome to NWOA

We are a multi-specialty group of orthopedic surgeons. Since 1970, our goal has been to provide care to our patients for a comprehensive range of orthopaedic problems. Our practice focuses on the evaluation and treatment of disorders of the bones, joints, muscles, tendons and nerves in children and adults. All of our physicians are board certified in orthopedic surgery and hold advanced certification in various sub-specialties.

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Meet the Doctors

All of our physicians are Board Certified by the American Board of Orthopedic Surgery. Each is committed to providing you with the most current methods of treatment available.

Kenneth D. Polivy, M.D.Kenneth D. Polivy, M.D., FACS
Spine Surgery and Sports Medicine
Alfred W. Hanmer, M.D., FACSAlfred W. Hanmer, M.D., FACS
Sports Medicine and Joint Replacement
Daniel C. Snyder, M.D.Daniel C. Snyder, M.D.
Sports Medicine and Joint Replacement
Dr. Lawrence F GeussLawrence F Geuss, M.D.
Sports Medicine and Joint Replacement
Bruce M. Leslie, MDBruce M. Leslie, M.D.
Surgery of the Hand and Upper Extremity
Evan Schumer MDEvan D. Schumer, M.D.
Surgery of the Hand and Upper Extremity
Daniel J. Quinn, M.D.Daniel J. Quinn, M.D.
Sports Medicine and Joint Replacement
Wojciech Bulczynski, M.D., FRCSWojciech Bulczynski, M.D., FRCS
Spine Surgery and Fracture Care
Dr. Matthew MessinaMatthew Messina, D.O.
Sports Medicine, Joint Replacement and Fracture Care
Laurie Katz, M.D.Laurie Katz, M.D.
Sports Medicine and Arthroscopic Surgery
Aaron Gardiner, M.D.Aaron Gardiner, M.D.
Sports Medicine and Arthroscopic Surgery
Nicky L. Leung, M.D.Nicky L. Leung, M.D.
Surgery of the Hand and Upper Extremity