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Meet Our Partner Physicians

Onward Orthopedics is a partnership of skilled orthopedic surgeons which focus on minimally invasive treatment options for knees, hips, shoulders, elbows, wrists and ankles. Many of the doctors below are pillars in their community and remain up to date on the latest trends and technologies in their field. Below is a brief introduction to the skilled surgeons currently accepting new patients. To schedule an appointment with one of our experts, please call (800) 577-1693 or fill out the form on this page.


Scottsdale, AZ

Dr. Shane Martin is a board-certified orthopedic surgeon. He is fellowship trained in adult reconstructive surgery and is an expert in the field of computer-assisted and robotic joint replacement, featuring Makoplasty technology. He performs both hip and knee replacements for the treatment of arthritis. His practice focuses on helping patients return to a more active and healthy lifestyle through rapid recovery programs.


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Phoenix, Arizona

Dr. Tarlow is a board certified Orthopedic Surgeon with over 20 years’ experience specializing in surgery of the knee. Dr. Tarlow is the only Orthopedic Surgeon to limit his practice to encompass Adult Reconstruction and Sports Medicine for the diagnosis and treatment of knees. While he performs the full spectrum of knee surgery including arthroscopy, ACL reconstruction, patellar stabilization and cartilage restoration, Dr. Tarlow also leads the way in Mako Robotic-Arm Assisted Surgery for partial and total knee replacements. He focuses on providing exceptional customer service and endeavors to exceed the diverse expectations of his patients.


Phoenix, Arizona

Dr. Eifler is an expert in the ?eld of orthopedic surgery and sports medicine with more than 15 years of experience. He has received recognition as a Top Doctor in Arizona and North Texas. Fellowship-trained in sports medicine, he has specialized training and surgical experience in arthroscopically reconstructing ligaments and restoring damaged cartilage in the knee and shoulder, including biologic treatments and allograft transplantation. He treats all aspects of shoulder disorders, such as dislocation, instability, separations, and labral or rotator cuff tears.


Dallas, Texas

Dr. Paul Saadi has been practicing orthopedics in Dallas for over 20 years. Dr. Saadi is board certified by the American Board of Orthopaedic Surgeons and is a Fellow of the American Academy of Orthopaedic Surgeons. While he specializes in Sports Medicine, Dr. Saadi is experienced at performing minimally invasive joint replacements and reconstructing ligaments in the knee, shoulder, and hip.


Houston, Texas

Dr. Justin Chronister is a board certified Orthopedic Surgeon and native of Houston, Texas. After completing his fellowship at the world-renowned Andrews Sports Medicine and Orthopaedic Center in Birmingham, Alabama, he returned to Houston in order to be close to family and provide service to the community in which he grew up. While Dr. Chronister specializes in minimally invasive arthroscopic techniques for conditions of the shoulder, elbow, knee, and hip, he also performs robotic assisted surgeries for partial knee and hip replacements.

To begin, please complete the form above or call 800.577.1693.