Andrew Waligora, MD is an orthopaedic surgeon with AHN Orthopaedic Institute, specializing in adult reconstruction. His primary specialties are primary revision hip and knee replacement surgeries. He is skilled at robotic partial and total knee replacement and complex hip and knee replacement surgeries. Dr. Waligora went to medical school at Drexel University College of Medicine in Philadelphia, Pennsylvania. He did... Read More about Andrew C Waligora, MD

Timothy J. Sauber II, MD, is an orthopaedic surgeon with AHN Orthopaedic Institute, specializing in adult reconstruction, arthroplasty, anterior hip replacement, hip arthritis, hip replacement, joint replacement, knee arthritis, knee replacement surgery, Mako robotic surgery, minimally invasive surgery, and robotic-assisted surgery. He provides patient-centered care tailored to meet each individual’s needs. Dr. Sauber II attended medical school at Northeast Ohio... Read More about Timothy J Sauber II, MD

Dr. Slipak is an orthopaedic surgeon who treats patients with orthopaedic cancers and bone and soft tissue tumors. He also provides total joint replacement surgery for hips and knees. Dr. Slipak received a medical degree from Temple University School of Medicine in Philadelphia, Pennsylvania. He completed a residency at Allegheny General Hospital in Pittsburgh, Pennsylvania. He gained further training through... Read More about Alan S Slipak, MD

Dr. Alexander Duke is a fellowship-trained orthopaedic surgeon practicing with Greater Pittsburgh Orthopaedic Associates in Cranberry Township. He specializes in hip and knee replacement for patients with degenerative joint disease. For the hip, he uses direct anterior and tissue-sparing approaches. He also performs partial and total knee replacement, along with complex primary and revision surgery. He is trained in computer-navigated... Read More about Alexander J Duke, M.D.

Nathan C. Winek, MD, is an orthopaedic hand and upper extremity surgeon with AHN Orthopaedic Institute, specializing in microvascular surgery, nerve repair, small joint arthroscopy, and denervation. He provides expert care for compressive neuropathies, tendinopathies, ligament injuries, arthritis, and fractures of the upper extremity. Dr. Winek attended medical school at Temple University in Philadelphia, Pennsylvania. He completed his residency at... Read More about Nathan C Winek, MD

Andrea Blakemore, PA-C Andrea Blakemore, PA-C, is a physician assistant specializing in providing comprehensive care, patient visits, complete physicals, and targeted exams, while also coordinating with supervising physicians to develop effective treatment plans. She specializes in patient care for orthopaedic surgery. Andrea Blakemore earned a Master of Science in Health Sciences from Lock Haven University Physician Assistant Program in Lock... Read More about Andrea Blakemore, PA-C

Beth Nickel is a certified physician assistant (PA-C) who specializes in orthopaedic surgery. She treats all patients the way she would want her own family and friends to be treated. Beth received a Master of Science from the University of Pittsburgh in Pittsburgh, Pennsylvania. She is board-certified by the National Commission on Certification of Physician Assistants. She is a member... Read More about Beth M Nickel, PA-C

Dr. Sferra cares for patients age 14 and up who have foot and ankle problems. He is experienced in ankle arthroscopy, minimally invasive foot surgery, total ankle replacements, and Lapiplasty®. He is clinically interested in Achilles tendon, ankle ligaments and fractures, arthritis, bunions, and sports injuries. Dr. Sferra has been a member of the American Orthopaedic Associates since 2008, and... Read More about James J Sferra Jr, MD