Dr. Robert Leland is a board-certified orthopedic surgeon and dual fellowship trained in foot and ankle reconstructive surgery and orthopedic trauma who has practiced in Colorado since 2001. He is one of Colorado’s most experienced Foot and Ankle surgeons and one of the first in the country to perform ankle replacements. Dr. Leland’s treatment centers on thoroughly educating patients about their condition and treatment options so they can best be involved in the decision-making process. He is a member of the Colorado Medical Society, American Orthopedic Foot and Ankle Society and American Academy of Orthopedic Surgeons. Prior to working with OCC, Dr. Leland graduated from the University of Michigan and Wayne State University School of Medicine. He completed his internship and residency training at Wayne State University/Detroit Medical Center. Dr. Leland completed fellowship training in Foot and Ankle Surgery at Baylor College of Medicine in Houston and Orthopedic Trauma at University Carl Gustav Carus in Dresden, Germany. He subsequently returned to Detroit as Chief of Foot and Ankle Surgery in the Department of Orthopedics at Wayne State University and Chief of Orthopedics at the VA Medical Center where he was twice awarded the Teacher of the Year Award. Dr. Leland currently serves as a clinical assistant professor in the Department of Orthopedics at the University of Colorado and received the Colonel Alan Bucknell Award for Teacher of the Year in 2020. Dr. Leland is rated as an Advanced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Achilles Tendon Rupture, Poland Syndrome, Multiple Pterygium Syndrome, Amniotic Band Syndrome, and Hip Replacement.

Lynn Sloan is a Physiatrist in Steamboat Springs, Colorado. Dr. Sloan is rated as an Advanced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Herniated Disk, Spinal Stenosis, Common Peroneal Nerve Dysfunction, and Foot Drop. Dr. Sloan is currently accepting new patients.

Dr. Derek Purcell is a board-certified, fellowship trained orthopedic surgeon who specializes in sports medicine, with a concentration on conditions and injuries of the shoulder and knee.  His expertise is in advanced arthroscopic techniques for the shoulder and knee, complex knee ligament reconstruction, cartilage restoration, and joint replacement for the knee and shoulder. Dr. Purcell graduated Summa Cum Laude from the University of Alabama in Tuscaloosa.  After attending the University of Virginia School of Medicine, he completed his Orthopedic Surgery residence as well as Sports Medicine and Shoulder Fellowship at Barnes-Jewish Hospital/Washington University in St. Louis. During his fellowship, Dr. Purcell served as assistant team physician for the St. Louis Rams (NFL), Blues (NHL), and Cardinals (MLB).  He was a former member of the NFL Team Physicians Society.  He has served as a physician for the St. Louis Cardinals spring training camp in Jupiter, FL as well as assisted with the NFL Combine in Indianapolis, IN. In Colorado Springs, Dr. Purcell serves as a Team Physician for Colorado College Athletics.  He has also assisted with the care of multiple high school athletic teams.  He currently assists with Vista Ridge High School, Colorado Springs Christian School, and Cheyenne Mountain High School.  He is a member of the American Orthopedic Society for Sports Medicine and the American Academy of Orthopedic Surgeons. Dr. Purcell is rated as an Experienced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Osteoarthritis, Bursitis, Tendinitis, Tenosynovitis, and Hip Replacement.

John A. Wallington, MD, a Cleveland Clinic fellowship-trained interventional spine physician, joined Orthopedic Associates in 2021. He is board-certified in physical medicine and rehabilitation. Dr. Wallington, a native of Ann Arbor, MI, attended the University of Michigan where he graduated Phi Beta Kappa with a degree in biochemistry and was awarded the Perrigo Fellowship to pursue natural products drug research. He obtained his medical degree from the University of Toledo College of Medicine and subsequently pursued a residency in Physical Medicine and Rehabilitation at Beaumont Hospital in Royal Oak, MI, serving as chief resident in his final year. He then pursued a fellowship in spine medicine at Cleveland Clinic where his training focused on non-operative treatment of neck and back pain. Dr. Wallington then practiced in Boston prior to joining Orthopedic Associates. His clinical interest is spine evaluation and treatments including therapies, non-opioid medications, and injection-based therapies including epidurals, radiofrequency ablations, and deep joint injections under fluoroscopic guidance. Dr. Wallington is rated as an Experienced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Coccydynia, Spinal Stenosis, Cervical Spondylosis, and Spondylolisthesis.

Dr. Matthew Delarosa is an orthopedic surgeon who specializes in hand, wrist, and elbow surgery. He provides both surgical and nonsurgical treatment to improve function and reduce pain. He focuses on complex trauma and reconstruction of the upper extremity, wrist surgery and arthroscopy, elbow surgery, targeted muscle reinnervation, elective treatment of nerve compressions and hand arthritis, and injuries to soft tissues including nerves, tendons, and ligaments. Originally from Baton Rouge, LA, Dr. Delarosa completed medical school and orthopedic training at LSUHSC New Orleans. He then further specialized in Hand and Microsurgery at OrthoCarolina in Charlotte, NC under the direction of Dr. Glenn Gaston. In addition to the full spectrum of routine upper extremity problems, a significant portion of his fellowship training concentrated on brachial plexus and complex peripheral nerve injuries. Additionally, he traveled to Florianopolis, Brazil to study under Dr. Jayme Bertelli, an expert in peripheral nerve injuries, brachial plexus injuries, and tendon transfers. He is also interested in improving function of upper extremity amputees through targeted muscle reinnervation (TMR) and the use of a myoelectric prosthesis. Through his work in congenital, brachial plexus, and amputee specialty clinics he has gained a wealth of knowledge on the multidisciplinary approach to patient care. Dr. Delarosa is rated as an Experienced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Tennis Elbow, Rhizarthrosis, Brachial Plexopathy, Thoracic Outlet Syndrome, and Leg or Foot Amputation.

Originally from Seattle, WA, Dr. MacTaggart joined OCC-Cornerstone Orthopedics and Sports Medicine in 2019 after completing advanced training in hand and upper extremity surgery. She specializes in the full range of hand, wrist, and elbow conditions and offers the latest treatments, including fracture care, microvascular surgery, nerve decompression, repair or reconstruction, fusions and replacements, bracing, injections, and arthroscopy. Dr. MacTaggart is an active member of the American Academy of Orthopedic Surgery, the American Society for Surgery of the Hand, and the American Academy of Hand Surgery. Prior to working at OCC-Cornerstone, Dr. MacTaggart graduated summa cum laude with a Bachelor of Science degree in biology from Pacific Lutheran University in Tacoma, WA, where she also played on the women’s soccer team. She attended medical school at The University of Washington, graduating magna cum laude and was nominated to the Alpha Omega Alpha medical honors society. After medical school, Dr. MacTaggart completed her residency training at the University of Washington in Seattle, WA. Following residency, she completed a fellowship in hand and upper extremity surgery at The Philadelphia Hand to Shoulder Center/Thomas Jefferson University in Philadelphia, PA. Dr. Mactaggart is rated as an Experienced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. Her top areas of expertise are Tennis Elbow, Rhizarthrosis, Ganglion Cyst, and Carpal Tunnel Syndrome.

Dr. John Shank is a board-certified, fellowship-trained orthopedic surgeon specializing in foot and ankle injuries. He has treated high school, college, and professional athletes, including Olympic medalists and players from the MLB, NFL, and NHL. Dr. Shank has served as foot and ankle consultant for the Colorado Rockies and Denver Broncos, and currently consults for the Olympic Training Center and Colorado College. He treats sports injuries, trauma, and performs both simple and complex foot and ankle reconstructions. His expertise includes arthritis, cartilage injuries, fractures, and deformities. He specializes in total ankle replacements and revisions, performing the most in southern Colorado using advanced CT-guided technology. He is especially skilled in complex trauma and minimally invasive techniques.Dr. Shank graduated summa cum laude from Xavier University and earned his medical degree from the University of Cincinnati. He completed his orthopedic surgery residency at the University of Colorado and a foot and ankle fellowship at Harborview Medical Center under Sigvard Hansen, Bruce Sangeorzan, and Stephen Benirschke. He also completed a sports medicine fellowship at the Steadman Hawkins Clinic with Dr. Richard Hawkins. Dr. Shank has been named a Top Foot and Ankle Surgeon by Colorado Springs Style and a Top Orthopedic Surgeon for Business Executives by Colorado Business Journal. Dr. Shank is rated as an Experienced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Tendinitis, Achilles Tendon Rupture, Tenosynovitis, and Synovitis.

Alejandro Miranda is an Orthopedics specialist and a Podiatric Surgeon in Steamboat Springs, Colorado. Dr. Miranda is rated as an Experienced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Synovial Osteochondromatosis, Caffey Disease, Achilles Tendon Rupture, and Tenosynovitis. Dr. Miranda is currently accepting new patients.

Pierre Pavot is a Neurologist in Longmont, Colorado. Dr. Pavot is rated as an Advanced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Parkinson's Disease, Common Peroneal Nerve Dysfunction, Autosomal Dominant Partial Epilepsy with Auditory Features, and Cerebellar Degeneration. Dr. Pavot is currently accepting new patients.

Michael Shell is a Physiatrist in Alamosa, Colorado. Dr. Shell is rated as an Advanced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Common Peroneal Nerve Dysfunction, Spinal Stenosis, Cervical Spondylosis, and Chronic Pain.

Alexander Dietz is a Neurologist in Englewood, Colorado. Dr. Dietz is rated as an Advanced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Amyotrophic Lateral Sclerosis (ALS or Lou Gehrig's Disease), Spinal Muscular Atrophy (SMA), Spinal and Bulbar Muscular Atrophy, and Spinal Muscular Atrophy Type 3. Dr. Dietz is currently accepting new patients.

Michael Sparr is a Physiatrist in Colorado Springs, Colorado. Dr. Sparr is rated as an Advanced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Sacroiliac Joint Disease, Concussion, Common Peroneal Nerve Dysfunction, and Bursitis.

Scott London is a Neurologist in Lakewood, Colorado. Dr. London is rated as an Advanced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Hereditary Sensory and Autonomic Neuropathy Type 2, Infantile Axonal Neuropathy, Congenital Insensitivity to Pain with Anhidrosis, and Cramp-Fasciculation Syndrome.

Matt Gnirke is a Physiatrist in Frisco, Colorado. Dr. Gnirke is rated as an Advanced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Spinal Stenosis, Invertebral Disc Disease, Cervical Spondylosis, and Tendinitis.

Gary Schmidt is a Podiatric Surgeon and an Orthopedics provider in Littleton, Colorado. Dr. Schmidt is rated as an Advanced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Tarsal Tunnel Syndrome, Osgood-Schlatter Disease, Osteochondritis Dissecans, and Tendinitis.

Kevin Lillehei is a Neurosurgery provider in Aurora, Colorado. Dr. Lillehei is rated as an Experienced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Pituitary Tumor, Hypothalamic Tumor, Brain Tumor, Awake Craniotomy, and Gamma Knife Radiosurgery.

Jeffrey Tamsing is a Neurologist in Parker, Colorado. Dr. Tamsing is rated as an Experienced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Multiple Sclerosis (MS), Migraine, Chronic Inflammatory Demyelinating Polyneuropathy, and Transient Global Amnesia.

Gregory Dilorenzo is a primary care provider, practicing in Internal Medicine in Broomfield, Colorado. Dr. Dilorenzo is rated as an Experienced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Gout, Osteomyelitis in Children, High Cholesterol, and Type 2 Diabetes (T2D). Dr. Dilorenzo is currently accepting new patients.

Marc Treihaft is a Neurologist in Englewood, Colorado. Dr. Treihaft is rated as an Experienced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Epilepsy Juvenile Absence, Absence Seizure, Peripheral Neuropathy, and Thoracic Outlet Syndrome.

Douglas Swanson is a primary care provider, practicing in Family Medicine in Colorado Springs, Colorado. Dr. Swanson is rated as an Experienced provider by MediFind in the treatment of Common Peroneal Nerve Dysfunction. His top areas of expertise are Cerebellar Degeneration, Abdominal Obesity Metabolic Syndrome, Type B Insulin Resistance Syndrome, and Mitochondrial Complex V Deficiency.