Picture of John D. Mahoney, M.D.

John D. Mahoney, M.D.


For nearly two decades, Dr. John Mahoney has taken care of hand, wrist and elbow patients at Midwest Orthopaedic Center. Through surgical and non-surgical care designed to remove as much ache, numbness or pain as possible, Dr. Mahoney gets your upper extremities working like they should.

His key interest is in performing minimally invasive operations that maximize results, like endoscopic carpal tunnel release and needle aponeurotomy. The latter procedure, for the treatment of Dupuytren’s disease, keeps patients’ fingers from curling or contracting involuntarily.

In his free time, Dr. Mahoney enjoys road and off-road cycling in and around Peoria. For him, it’s more than a casual hobby –– in 2018, he placed within his age group’s top ten participants at the Hillclimb World Championships. Dr. Mahoney had trained alongside future Olympians in the past, so he knows what it takes to be in peak physical health. This athletic experience informs his approach to orthopaedics, helping you find comfort and regain strength, no matter your fitness level.

Medical School: Yale University School of Medicine

Residency: Orthopaedic Surgery, George Washington University

Fellowship: Hand and Microvascular Surgery, UCLA Medical Center

Certification: Board Certified in Orthopaedic Surgery

I'm proud to provide medical and surgical care for my patients. Whether laying the scalpel at the start of a surgery or counseling a patient through their recovery, I always feel fortunate to assist you in your time of need.

Patient Satisfaction Rating


Based on the metrics of Quality, Advancing Care Information and Improvement Activities set forth by the Centers for Medicare & Medicaid Services (MIPS) Merit-based Incentive Program.

Meet Our Patients

In my opinion, Dr. Mahoney is an excellent doctor and surgeon, with that most rare attribute - a caring, pleasant bedside manner! My procedure went very well, the incision has healed nicely - I am very happy with Midwest and with Dr. Mahoney! Also, Tina at the front desk is absolutely the best! Always happy to see her smiling face and be greeted with a welcoming attitude! Thanks to everyone!

A patient of Dr. Mahoney

Dr. Mahoney spelled it out completely. I knew what to expect. The whole process was very smooth, and I was very impressed with how informed they made me feel and impressed with everyone's professional attitudes all through the process.

Linda Beirise

A thumb joint arthroplasty patient who loves to quilt –– from Groveland, IL.

I couldn't sleep at night, I didn't have energy for my kids and I was tired at work. My family doctor referred me to Dr. Mahoney. He was nice, knowledgable and made me feel at ease. After treatment, I feel amazing, like I never had issues.

Jessica Isbell

A carpal tunnel patient who loves to cook –– from Farmington, IL.

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Call Us to Set Up an Appointment

Peoria (309) 691-1400

Pekin (309) 353-4159

Get Hours & Location Info

Midwest Ortho First Walk-In Clinic Hours: M-F 9am-6pm | Sat-Sun 9am-noon