Starting on August 31, 2026, Orthopedic & Sports Medicine Specialists (OSMS) is welcoming Dr. Keagan Gertz, a Fellowship Trained Orthopedic Spine Surgeon, Dr. Kyle Kaster, a Fellowship Trained Hand, Wrist & Elbow Specialist, and Dr. Brian Law, a Fellowship Trained Foot & Ankle Specialist to their Green Bay, Neenah, and Oshkosh teams. With these three physicians starting, OSMS will have 28 orthopedic physicians providing specialized care to patients of all ages.

A Midwest native, Dr. Keagan Gertz received his medical degree from the University of Cincinnati. He completed his orthopedic surgery residency at the University of Nebraska Medical Center, followed by fellowship training in spine surgery at the University of Pittsburgh Medical Center — one of the busiest spine centers in the nation.

Dr. Gertz provides specialized spine care to patients of all ages, treating the full spectrum of spine conditions — both non-operatively and operatively — from degenerative and traumatic issues to spinal deformity, affecting the spine from the neck down to the tailbone. This includes cervical, thoracic, and lumbar stenosis, disc herniations, spinal fractures, and many other conditions.

A Stevens Point native, Dr. Kyle Kaster, received his medical degree from Des Moines University. He completed his residency at McLaren Greater Lansing-Michigan State University and went on to complete his upper extremity (hand to elbow) fellowship training at Kettering Health in Dayton, Ohio.

Dr. Kaster provides specialized hand, wrist, and elbow care to patients of all ages, treating conditions including, but not limited to, nerve, tendon, and vascular injuries; chronic overuse injuries; hand, wrist, thumb, and elbow arthritis; tendonitis; Dupuytren’s disease; De Quervain’s tenosynovitis; tennis elbow and golfers’ elbow; hand and wrist cysts; nerve compression disorders such as carpal, cubital, and radial tunnel syndromes. He also provides treatment for upper extremity trauma and stress fractures.

Dr. Brian Law received his medical degree from the Medical College of Wisconsin. He completed his residency at the Medical College of Wisconsin Affiliated Hospitals and went on to complete his foot and ankle fellowship training at Oakland Bone and Joint Specialists.

Dr. Law specializes in foot and ankle care to patients of all ages, treating conditions including, but not limited to, fractures, dislocations, arthritis, sports injuries, deformities such as bunions, hammertoes, flat foot, and cavus foot, tendon injuries, ligament injuries, tendinitis, Charcot neuroarthropathy, exertional compartment syndrome, and osteochondral lesions.

About Orthopedic & Sports Medicine Specialists

Orthopedic & Sports Medicine Specialists (OSMS) is a physician-owned orthopedic, sports medicine, rheumatology, and pain management practice servicing patients in Northeastern Wisconsin and Michigan’s Upper Peninsula with clinics in Green Bay, Marinette, Neenah, Oshkosh, Chilton, New London, Oconto Falls, Ripon, and Fond du Lac. Services at OSMS include hip, knee, and shoulder care; hand and wrist care; foot and ankle care; sports medicine; work-related injuries; fracture care; spine care; pain management care; and rheumatologic care. Recognized as the best orthopedic/sports medicine clinic in the Green Bay Area, Fox Valley, Winnebago County, and Fond du Lac, OSMS has one of America’s Best Ambulatory Surgery Centers 2026 by Newsweek, along with one of the Best Ambulatory Surgery Centers for Orthopedics in the United States 2024-2025 by U.S. News & World Report and also offers MRI, EMG, lab services, infusion therapy and bone density screening. Visit osmsgb.com for more information.