Our Team
Our Physicians
Jeffrey S. Meisles,
M.D.
Dr. Meisles graduated from Rush University Medical School in 1986, and completed his Orthopedic Surgery training at Rush University Hospital in 1991. Dr. Meisles founded Orthopedic Specialists in 1991, and has been widely recognized as one of the top orthopedic surgeons in the area by U.S. News and World Report, Chicago Magazine, and West Suburban Living. He has also been voted by his peers as one of the areas top physicians, and listed in the Castle Connelly Guide “Top Doctors, Chicago Metro Area” every year since it’s initial publication more than a decade ago. Dr. Meisles is a fellow of the American Academy of Orthopedic Surgeons, and The American Association of Hip and Knee Surgeons, and has served as the chairman of surgery at Gottlieb Memorial Hospital. In addition to his clinical practice, Dr. Meisles teaches new techniques in hip and knee replacement surgery to both resident physicians and practicing orthopedic surgeons, and works as an expert consultant with several orthopedic implant manufacturers on projects involving new technology to improve the outcomes for hip and knee replacement surgery. Dr. Meisles has also been recognized by Chicago Magazine as one of Chicago’s top sports medicine doctors, and he is an expert in arthroscopic surgery. In addition, Dr. Meisles continues to treat fractures and provide general orthopedic care. Outside of work, Dr. Meisles enjoys spending time with his family, tennis, skiing and travel. He has been married to Dr. Lynn Meisles (rheumatologist) for 35 years. They have three children.
Ryon M. Hennessy,
M.D.
Dr. Hennessy graduated from Rush Medical School in 1991. He completed his residency in orthopedic surgery at Rush-Presbyterian St. Luke’s Medical Center in 1996. He subsequently completed a one year fellowship in spinal surgery at Rush-Presbyterian St. Luke’s Medical Center and Chicago Shriners Hospital. In addition to the practice of general orthopedics, Dr. Hennessy has a special interest in spinal surgery and joint replacement as well as sports medicine.
Daryl L. O’Connor,
M.D.
Dr. Daryl L. O’Connor is a board certified orthopedic surgeon fellowship trained in sports medicine with special interest in arthroscopic surgery, cartilage transplant, and minimally invasive surgery. He graduated from Northwestern University Medical School in 1997. He completed his orthopedic surgery training at Northwestern Memorial Hospital in 2002. He subsequently completed a one year fellowship in Sports Medicine at The Orthopedic Specialty Hospital in Salt Lake City, Utah.Dr. O’Connor treats all general orthopedic conditions. He is proficient in diagnosing and treating sports related injuries, the athlete returning to their sport healthy being his priority. Dr. O’Connor performs a broad range of surgeries including, arthroscopic repair of knee and shoulder injuries, patient specific total knee arthroplasty,and anterior total hip arthroplasty.Since starting his practice in 2003, Dr. O’Connor has made it his priority to give individualized care to his patients, allowing the patient to feel comfortable with the direction of their care. He and his patients work together to customize a treatment plan that best fits the patient’s lifestyle and produces the best outcome for the patient.
Benjamin Hoyt,
M.D.
Dr. Benjamin Hoyt was commissioned as an officer in the United States Navy in 2012 and attended medical school at the Uniformed Services University of the Health Sciences, graduating in 2016. He completed his Internship and Residency in Orthopaedic Surgery in 2022 through the military at Walter Reed National Military Medical Center and the National Capital Consortium. He has also done sports coverage for the West Point Army Black Knights and the Air Force Academy. He completed additional training, including the USU microvascular surgery course, the combat orthopaedic trauma surgery course, and a traveling fellowship in Sports Surgery at Dalhousie University in Halifax, Nova Scotia. Dr. Hoyt’s areas of focus are musculoskeletal trauma, upper extremity/shoulder, and sports surgery. He performs a large number of arthroscopic and minimally invasive procedures, including shoulder stabilization, labral repair, rotator cuff repair, ACL reconstruction and meniscal repair surgeries, and ultrasound-guided trigger and carpal tunnel releases. He is also highly skilled in shoulder replacement and fracture/reconstructive surgery. Dr. Hoyt is focused on a patient-centered plan of care, leveraging advanced technologies and innovative non-operative and surgical approaches to achieve the best outcomes for his patients.
Our Staff
