Award Winning Staff

Scott W. Trenhaile, M.D.

Clinical Assistant Professor/ Orthopaedic Surgeon
Dr. Scott Trenhaile, Orthopaedic Surgeon from Rockford, Illinois, is dedicated to the continuous advancement of healthcare and specialized in knee, shoulder and elbow.

Michael Gilbertson

Physician Assistant
Michael Gilbertson, a native to Rockford, has been with Dr. Trenhaile’s team as a Physician Assistant since 2004 after graduating from Midwestern University. As part of the sports medicine department, Michael assists Dr. Trenhaile in formulating diagnoses and treatment plans as well as providing surgical assistance. Michael manages all preoperative and postoperative patient education. In his spare time he lives enjoys wakeboarding, hockey and spending time with his wife Kim and children Myles and Kylie.

Jason Kadar

Physician Assistant
Jason Kadar a native to Central Illinois, has been apart of the OrthoIllinois Team working as a Physician Assistant since date of hire in 2006 after graduating from Marywood University. He has worked within Trauma Orthopedics for 10 consecutive years primarily assisting with orthopedic fracture care in both then clinical and surgical settings. He then worked along side Total Joint physician’s within the group specializing in Total Knee and Total Hip arthroplasty care again in both the clinical and surgical settings. Jason now joins Dr Trenhaile’s team part of the sports medicine department primarily formulating diagnoses and treatment plans in the clinical setting, as well as providing surgical assistance at times when needed. Jason also works in our walk-in clinic at Injury Express through OrthoIlinois. In his time away from work he enjoys spending time with his son Jacob, and living an active lifestyle as possible.

Nicole Knox

Administrative Assistant
Raised in Belvidere IL, Nicole serves as Dr. Trenhaile’s Clinical Scheduler and Administrative Assistant. She’s worked with Dr.Trenhaile’s practice for almost 13 years and has a strong background in Business Management. Her experience in the healthcare field informs her in giving Dr. Trenhaile’s patients the time and attention they need in their visits with the Physician. In her spare time, Nicole enjoys traveling to BMX races and Cheer Competitions with her 4 children and 3 dogs.

Kari Stockton

Registered Nurses + Bachelor of Science in Nursing
Kari Stockton RN BSN: Kari was born and raised in Southern Wisconsin on a dairy farm. She received a Bachelor’s degree in Nursing from St. Anthony College of Nursing. Prior to joining Dr. Trenhaile’s team in 2004, Kari worked in the Neuro/Trauma ICU at St. Anthony Medical Center. Kari currently resides in Rockton, Illinois with her husband and enjoys hunting, fishing, and other outdoor activities.

Alyssa Fetterhoff

Bachelor of Science in Exercise Science
Alyssa Fetterhoff BS: raised in Belvidere, Illinois. She received a Bachelor’s degree in Exercise Science from North Central College. While attending college she ran and did hurdles for the school’s Track and Field team. Prior to joining Dr. Trenhaile’s team, Alyssa worked as a rehab technician at New Millennium Medical in her home town. She currently resides in Rockford, Illinois and enjoys spending time with her family and friends, traveling, and eating good food.