Dr. John T. Joseph

Max Seiter is a Sports Medicine specialist and an Orthopedics provider in Frisco, Colorado. Dr. Seiter is rated as an Advanced provider by MediFind in the treatment of Synovitis. His top areas of expertise are Tendinitis, Bursitis, Tenosynovitis, Synovitis, and Endoscopy.

Dr. Thomas Mann is a fellowship-trained sports medicine specialist who joined Cornerstone Orthopedics & Sports Medicine, a division of OCC, in 2000. He is a fellow of The American Orthopedic Society for Sports Medicine, the leading organization for sports medicine in the U.S. Dr. Mann graduated with honors from Jefferson Medical College in Philadelphia, where he was elected to the Alpha Omega Alpha Medical Honor Society. He completed his orthopedic residency at Penn State University, followed by a Sports Medicine Fellowship at Ohio State University, gaining advanced training in arthroscopic surgery and team coverage across multiple sports, including football, soccer, hockey, and gymnastics. His experience includes work with teams such as the Columbus Chill, Hershey Bears, and the U.S. Under-17 Soccer Team during a European tour. Locally, he has provided sideline coverage for Ralston Valley High School Football for over five years. Dr. Mann is also committed to community service, volunteering with Habitat for Humanity, Denver Hands for Hope, and serving regularly as a camp doctor and committee member with Young Life Central Denver. Dr. Mann is rated as an Advanced provider by MediFind in the treatment of Synovitis. His top areas of expertise are Tendinitis, Tenosynovitis, Synovitis, and Bursitis.

Dr. Daniel Ocel is a board-certified orthopedic surgeon who joined a division of OCC - Cornerstone Orthopedics & Sports Medicine in 2005. He is fellowship-trained in foot and ankle reconstructive surgery and also practices general orthopedics and sports medicine. His approach centers on compassionate, individualized care tailored to each patient. Dr. Ocel graduated summa cum laude from Creighton University School of Medicine, where he received a Health Professions Scholarship from the U.S. Navy. He completed his orthopedic surgery residency at the University of Illinois in Chicago, earning the Weinstein Award as the outstanding chief resident. Following residency, Dr. Ocel served as head of orthopedic surgery at Naval Hospital Corpus Christi and was awarded the Naval-Marine Corps Commendation Medal for his service. He then moved to Sydney, Australia, to complete a foot and ankle fellowship with Dr. Martin Sullivan, caring for many of the country’s top professional and Olympic athletes. He later completed an additional fellowship with Dr. Robert Anderson at the Miller Clinic in Charlotte, NC. Dr. Ocel is a member of the Colorado Medical Society, American Orthopedic Foot & Ankle Society, and the American Academy of Orthopedic Surgeons. Dr. Ocel is rated as an Advanced provider by MediFind in the treatment of Synovitis. His top areas of expertise are Achilles Tendon Rupture, Tendinitis, Synovial Osteochondromatosis, and Flat Feet.