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 highly rated in 2 conditions, according to our data. His top areas of expertise are Coccydynia, Spinal Stenosis, Cervical Spondylosis, and Spondylolisthesis.

Matthew Marrington is a Physiatrist in Westminster, Colorado. His top areas of expertise are Stroke, Subdural Hematoma, Necrotizing Myopathy (NM), and Chronic Subdural Hematoma. Dr. Marrington is currently accepting new patients.

Michael Tracy is a Physiatrist in Arvada, Colorado. Dr. Tracy is highly rated in 5 conditions, according to our data. His top areas of expertise are Chronic Pain, Spasticity, Complex Regional Pain Syndrome, and Klippel-Feil Syndrome.

Susan Apkon is a Physiatrist and a Pediatrics provider in Aurora, Colorado. Dr. Apkon is highly rated in 5 conditions, according to our data. Her top areas of expertise are Duchenne Muscular Dystrophy, Dysferlinopathy, Dystrophinopathy, Primary Lateral Sclerosis, and Rhizotomy. Dr. Apkon is currently accepting new patients.

Elise Itano is a Physiatrist in Louisville, Colorado. Dr. Itano is highly rated in 3 conditions, according to our data. Her top areas of expertise are Spinal Stenosis, Scoliosis, Invertebral Disc Disease, and Tendinitis. Dr. Itano is currently accepting new patients.

Sheldon Goldberg is a Physiatrist in Thornton, Colorado. Dr. Goldberg has been practicing medicine for over 43 years is highly rated in 1 condition, according to our data. His top areas of expertise are West Nile Virus Infection, Stroke, Subarachnoid Hemorrhage, and Miller-Fisher Syndrome. Dr. Goldberg is currently accepting new patients.

Karen Ksiazek is a Physiatrist in Arvada, Colorado. Her top areas of expertise are Scoliosis and Chronic Pain.

Born in Denver but raised in New York, Dr. Madureira has come full circle to join us here at Orthopedic Centers of Colorado. She is a Physical Medicine & Rehabilitation (PM&R) trained Sports Medicine Physician with a passion for getting and keeping people active and working with individuals across the age and fitness spectrum. She was drawn to Sports Medicine by the ability to combine a broad range of treatments including exercise prescription, diagnostic and therapeutic musculoskeletal ultrasound, and regenerative medicine. She is an active member of the American Medical Society for Sports Medicine & the American Academy of Physical Medicine and Rehabilitation. Prior to working at Orthopedic Centers of Colorado, Dr. Madureira obtained a Bachelor of Science at Tulane University in New Orleans, a Master of Public Health from Columbia University in New York and attended medical school at the New York Institute of Technology College of Osteopathic Medicine. She completed her residency in PM&R at Montefiore Medical Center in New York where she served as chief resident in her final year. Subsequently she completed a fellowship in Sports Medicine at Burke Rehabilitation Hospital – assisting with sideline & training room coverage from the high school to professional levels. She has earned several accolades including resident of the year as well as the Leo M. Davidoff Society award for Outstanding Achievement in the Teaching of Medical Students. Her top areas of expertise are Tendinitis, Bursitis, Tennis Elbow, and Baker Cyst.

Dr. Efren Caballes joined Cornerstone Orthopedics & Sports Medicine, a division of OCC, in 2016. He takes a comprehensive approach to musculoskeletal care, incorporating exercise, physical modalities, bracing, injections, and regenerative medicine. He has a special interest in diagnostic and therapeutic musculoskeletal ultrasound and focuses on aligning treatment with each patient’s recovery needs and goals. Dr. Caballes earned a Bachelor of Science in Molecular Cellular Biology from the University of Illinois at Urbana-Champaign and a medical degree from Touro College of Osteopathic Medicine in New York City. He completed his residency in Physical Medicine and Rehabilitation at NYU Medical Center, where he served as Chief Resident, followed by a Sports Medicine Fellowship at NYU. His training included working with endurance athletes at the NYU Running Performance Lab and artists at the Juilliard School and Harkness Center for Dance Injuries. While in New York, he developed a passion for running, joining the Prospect Park Track Club and volunteering with Back on My Feet. In Colorado, he continues to care for runners and triathletes at all levels, from recreational to Olympic athletes. He is a Level 1 certified USA Track and Field coach and was selected to serve as a volunteer physician for the U.S. Olympic & Paralympic Committee in 2020. He also teaches sports ultrasound nationally and serves as a clinical instructor for multiple medical programs. Dr. Caballes is highly rated in 3 conditions, according to our data. His top areas of expertise are Tendinitis, Bursitis, Tennis Elbow, and Plantar Fasciitis.

As an Interventional Physiatrist, Dr. Christopher D‘Ambrosia treats a wide range of problems, including sore shoulders, spinal cord injuries, arthritis, tendonitis, back pain, as well as work- and sports-related injuries. His focus is on restoring function for his patients. Dr. D’Ambrosia has been in private practice in Colorado since 2005. He has provided his services for the NHL – Colorado Avalanche, NBA – Denver Nuggets, and the Colorado Crush Arena Football Team. Dr. D'ambrosia is highly rated in 2 conditions, according to our data. His top areas of expertise are Bursitis, Sacroiliac Joint Disease, Tendinitis, and Pudendal Neuralgia.

Gareth Shemesh is a Physiatrist in Thornton, Colorado. His top areas of expertise are Chronic Pain, Stroke, and Scoliosis.

Franklin Shih is a Physiatrist in Thornton, Colorado. His top areas of expertise are Sciatica and Scoliosis.

Amar Patel is a Physiatrist and a Pain Medicine provider in Thornton, Colorado. Dr. Patel has been practicing medicine for over 17 years. His top areas of expertise are Sacroiliac Joint Disease, Discoid Lupus Erythematosus (DLE), Chronic Pain, and Cervical Spondylosis. Dr. Patel is currently accepting new patients.

Kristina Barber is a Physiatrist in Broomfield, Colorado. Her top areas of expertise are Chronic Pain, Frontonasal Dysplasia Klippel Feil Syndrome, Cervical Spondylosis, and Complex Regional Pain Syndrome. Dr. Barber is currently accepting new patients.

Jack Torres is a Physiatrist in Broomfield, Colorado. His top areas of expertise are West Nile Virus Infection, Stroke, Epidural Abscess, and Subarachnoid Hemorrhage. Dr. Torres is currently accepting new patients.

Adam Burton is a Physiatrist in Broomfield, Colorado. His top areas of expertise are Miller-Fisher Syndrome, Guillain-Barre Syndrome, and Stroke. Dr. Burton is currently accepting new patients.

Heather Baer is a Physiatrist in Aurora, Colorado. Dr. Baer is highly rated in 22 conditions, according to our data. Her top areas of expertise are Cerebral Palsy, Drug Induced Dyskinesia, Opisthotonos, and Muscle Spasms. Dr. Baer is currently accepting new patients.

Joyce Oleszek is a Physiatrist in Aurora, Colorado. Dr. Oleszek is highly rated in 11 conditions, according to our data. Her top areas of expertise are Dystrophinopathy, Cerebral Palsy, Spasticity, Spastic Diplegia Infantile Type, and Rhizotomy. Dr. Oleszek is currently accepting new patients.

John Tobey is a Physiatrist in Boulder, Colorado. Dr. Tobey is highly rated in 6 conditions, according to our data. His top areas of expertise are Invertebral Disc Disease, Cervical Spondylosis, Spinal Stenosis, and Bursitis. Dr. Tobey is currently accepting new patients.

Venu Akuthota is a Physiatrist in Aurora, Colorado. Dr. Akuthota is highly rated in 5 conditions, according to our data. His top areas of expertise are Invertebral Disc Disease, Cervical Spondylosis, Spinal Stenosis, and Scoliosis. Dr. Akuthota is currently accepting new patients.

Scott Laker is a Physiatrist in Aurora, Colorado. Dr. Laker is highly rated in 5 conditions, according to our data. His top areas of expertise are Invertebral Disc Disease, Beukes Familial Hip Dysplasia, Spinal Stenosis, and Scoliosis. Dr. Laker is currently accepting new patients.

Marshall Emig is a Physiatrist and a Sports Medicine provider in Aurora, Colorado. Dr. Emig is highly rated in 4 conditions, according to our data. His top areas of expertise are Invertebral Disc Disease, Distal Median Nerve Dysfunction, Facet Joint Syndrome, and Spinal Stenosis. Dr. Emig is currently accepting new patients.

Sara Meadows is a Physiatrist and a Neurosurgery provider in Denver, Colorado. Dr. Meadows is highly rated in 3 conditions, according to our data. Her top areas of expertise are Sciatica, Scoliosis, Invertebral Disc Disease, and Herniated Disk. Dr. Meadows is currently accepting new patients.

Andy Olsen is a Physiatrist in Denver, Colorado. Dr. Olsen is highly rated in 3 conditions, according to our data. His top areas of expertise are Acute Pain, Stroke, Hemiplegia, and West Nile Virus Infection.

Rachel Holman is a Physiatrist in Aurora, Colorado. Dr. Holman is highly rated in 3 conditions, according to our data. Her top areas of expertise are Spinal Stenosis, Invertebral Disc Disease, Scoliosis, and Sciatica. Dr. Holman is currently accepting new patients.