Mark Allen, DO, is a board-certified and fellowship-trained Orthopedic Surgeon specializing in Adult Reconstruction of the Hip and Knee. Prior to joining The CORE Institute, Dr. Allen treated patients across Arizona and Nevada, focusing on robotic-assisted total joint replacement, including partial knee, total knee, and anterior hip arthroplasty, as well as complex primary and revision hip and knee procedures.
Mark Allen, DO, is a board-certified and fellowship-trained Orthopedic Surgeon specializing in Adult Reconstruction of the Hip and Knee. Prior to joining The CORE Institute, Dr. Allen treated patients across Arizona and Nevada, focusing on robotic-assisted total joint replacement, including partial knee, total knee, and anterior hip arthroplasty, as well as complex primary and revision hip and knee procedures.
Mark Allen, DO, is a board-certified and fellowship-trained Orthopedic Surgeon specializing in Adult Reconstruction of the Hip and Knee.
Prior to joining The CORE Institute, Dr. Allen treated patients across Arizona and Nevada, focusing on robotic-assisted total joint replacement, including partial knee, total knee, and anterior hip arthroplasty, as well as complex primary and revision hip and knee procedures. He also incorporates non-operative treatment options such as injections, physical therapy, and bracing, and emphasizes clear communication and a positive patient experience throughout every stage of care.
Dr. Allen completed his fellowship in Adult Reconstruction of the Hip and Knee at The CORE Institute and his orthopedic surgery residency at Michigan State University College of Osteopathic Medicine at St. John Oakland Hospital. He earned his Doctor of Osteopathic Medicine from Touro University Nevada and his Bachelor of Science in Microbiology from Weber State University, graduating Cum Laude with a minor in Chemistry.
Dr. Allen is board-certified by the American Osteopathic Board of Orthopedic Surgery and is MAKO-certified in robotic hip and knee arthroplasty. He remains actively involved in orthopedic research and education, with multiple peer-reviewed publications focused on joint replacement and robotics. Outside of work Dr. Allen enjoys golfing, hiking, swimming as well as playing sports with his wife and children.

Dr Allen is great. He takes time with you and makes sure you understand everything going on. I never feel rushed or like I’m not his current priority. He also gives you all options, walks you through the options, makes recommendations but takes your concerns and plan under advisement and works with you. He is my 3rd surgeon for my knees and is far and away the best Dr I have ever visited. Can’t do better than Dr Allen!
He’s the best. He did both of my knee replacements.
Cares and investigates the issue thoroughly and develops a step by step plan- wants all the facts prior to making big decisions. -
Very honest and professional... We need more Drs like Mark in this world.
Very nice and quick to the point. Told me what needed to happrn amd explained the process. Exactly what i want in a doctor.
He’s a great D. O.
Very thorough. He actually touched my hip instead of just looking at a scan or a report.
Professional, thorough, thoughtful, and knowledgeable. I know I’m in excellent care.
one of the finest doctor been to in a long long time
Personable, easy to talk to, listens well.