Peter Roessler, MD Medical Director Anesthesiologist Dr Roessler, though a native southern Californian, moved to Oregon in 1996 and is proud to call Oregon and the beautiful NW, home. In 1984, he graduated from UC Santa Barbara with a degree in Mechanical Engineering. He then worked for Hewlett-Packard in San Diego, becoming the division’s youngest project manager. Four years later, he left HP to…
Erin McKay M.S.N., R.N., C.N.M.L. Administrator Erin McKay, MSN, RN, CNML has been the Administrator at Oregon Surgical Institute since 2020. Erin has been a nurse for over 20 years, and finds her greatest joy and passion in providing exceptional care for patients. After spending her early career providing bedside patient care at the hospital,…
Gustav Fischer, MD Orthopedic Surgeon Dr. Gustav “Gus” Fischer is a board certified orthopedic surgeon with a subspecialty interest in arthritis and joint replacement surgery. His practice is geared toward individuals of all ages who are seeking to reduce pain and return to an active lifestyle. Dr. Fischer uses state of the art techniques to…
Amer Mirza, MD Orthopedic Surgeon Dr. Amer Mirza has training in adult arthritis and joint replacement surgery. His practice focuses on personalized care for patients of all ages seeking to reduce pain, improve function, and return to active lifestyles. Dr. Mirza is board-certified by the American Academy of Orthopaedic Surgeons (AAOS). He is vice president…
Shane R. Hanzlik, MD Orthopedic Surgeon Doctor Hanzlik is an Orthopedic Surgeon specializing in sports medicine and hip preservation surgery. This includes a clinical focus on hip arthroscopy and cartilage restoration. He received his medical degree from the University of Nevada in Reno, NV and completed his internship and residency at Case Western Reserve in…
Thomas W. Huff MD Orthopedic Surgeon Dr. Huff’s clinical specialty is total joint reconstruction for degenerative conditions of the hip and knee. His research interests include hip and knee arthroplasty, and conservative hip surgery including osteotomy. For certain types of knee replacement surgery, Dr. Huff uses the CORI Surgical System, an advanced robotic technology. Dr.…
Christopher J. Nanson, MD Orthopedic Surgeon Dr. Christopher Nanson is a Board Certified orthopedic surgeon with a special interest in reconstructive joint surgery with an emphasis on hip and knee reconstruction. He specializes in the direct anterior approach, one of the minimally invasive techniques used in hip replacement surgery. He is trained and certified in…
James C Ballard, MD Orthopedic Surgeon James C. Ballard, MD, PC, is a board-certified orthopedic surgeon specializing in adult joint reconstruction. He was the first to perform outpatient hip replacement in the Pacific Northwest and provides dedicated, personalized care to patients at ROC Orthopedics in Tualatin and Oregon City, Oregon. Dr. Ballard received his medical…