OUR EXPERTS

You can trust the OSMS medical professionals to give you the care you need with the respect and compassion you deserve. That’s because our doctors not only work at OSMS, they own it.

Walker Flannery MD

Orthopedic Surgeon / Owner

Locations: Green Bay Marinette

920-430-8113

Dr. Walker Flannery is a board-certified orthopedic surgeon and OSMS physician owner. He is specially trained to treat patients in a rural setting, including farm and outdoor hazard injuries. His expertise shows in joint replacement – including the anterior hip replacement – sports injuries, fracture care and more.

Luke Fraundorf MD

Orthopedic Surgeon / Owner

Locations: Fox Valley Oshkosh

920-430-8113

Dr. Luke Fraundorf is a board-certified orthopedic surgeon. His areas of expertise include conditions and procedures with the knee, hips, shoulders and hands including joint replacements, arthroscopy, ACL reconstruction, rotator cuff repair, sports injuries, hand surgery, fracture care and work injuries.

Alejandro Garcia MD

Orthopedic & Sports Medicine Physician

Locations: Fox Valley

920-430-8113

Dr. Garcia treats the full spectrum of musculoskeletal pain including chronic conditions that affect our aging population such as arthritis, tendonitis, myalgia, neck and low back pain. He also treats acute injuries like sprains, strains, fractures and concussions.  Dr. Garcia performs the most advanced non-surgical procedures to treat joint pain including ultrasound-guided injections, platelet-rich plasma (PRP) injections, tenotomies, peripheral nerve hydrodissections and nerve blocks.

Eric Gowing MD

Rheumatologist

Locations: Fox Valley Oshkosh

920-430-8113

Dr. Gowing sees and treats a wide range of rheumatologic conditions including rheumatoid arthritis, psoriatic arthritis, lupus, Sjogren’s syndrome, fibromyalgia, gout, osteoarthritis and takes a special interest in osteoporosis.

Michael Harper MD

Interventional Sports Medicine / Physical Medicine & Rehabilitation Physician

Locations: Green Bay

920-430-8113

Dr. Harper is board-certified in Physical Medicine & Rehabilitation and Sports Medicine. He treats non-operative orthopedic conditions such as knee pain, shoulder pain, hip pain, and neck and back pain. Additionally, he treats a variety of both acute and chronic conditions from ankle sprains to tendon disorders, to osteoarthritis. Dr. Harper performs a variety of musculoskeletal procedures in which the majority are guided by ultrasound or fluoroscopy (x-ray). Some of these procedures he performs include joint injections, radiofrequency ablations, and Orthobiologics – also known as Regenerative Medicine.

Joel Hein MD

Orthopedic Surgeon / Owner

Locations: Green Bay

920-430-8113

Dr. Joel Hein is a board-certified, sports medicine fellowship-trained orthopedic surgeon. He is well-versed in treating a wide range of orthopedic conditions, sports-related injuries and joint replacement surgery.

Karl Henrikson MD

Orthopedic Foot & Ankle Specialist / Owner

920-430-8113

Dr. Karl Henrikson is a board-certified, fellowship-trained orthopedic foot and ankle specialist. He treats most orthopedic conditions in addition to the entire spectrum of foot and ankle conditions, such as total ankle replacement, ankle fractures and sprains, bunions and more.

Jason Klein MD

Orthopedic Surgeon / Owner

Locations: Green Bay Marinette

920-430-8113

Dr. Jason Klein is a board-certified, sports medicine fellowship-trained orthopedic surgeon and OSMS physician owner. He treats a wide variety of orthopedic conditions, sports-related injuries and joint replacement surgery.

Jack (John) Leschke MD

Spine Surgeon

Locations: Fox Valley Oshkosh

920-430-8113

Dr. Jack (John) Leschke is a dual board-certified spine surgeon having completed training in both Neurosurgery and Neurology. Dr. Leschke has a specialized intertest in minimally invasive spine surgery and treats a wide variety of neurological conditions of the spine including neck and back pain, spinal fractures, spinal tumors, spinal stenosis and instability, spondylolisthesis, degenerative spine disease, spinal arthritis, pinched nerves, sciatica, and more.

Debbie Lim MD

Rheumatologist / Owner

Locations: Green Bay Marinette

920-430-8113

Dr. Debbie Lim is a board-certified, fellowship-trained rheumatologist and OSMS physician owner. She treats adults with rheumatic conditions such as arthritis, gout, lupus, osteoporosis and more.

Daniel Linehan MD

Orthopedic Surgeon / Owner

Locations: Green Bay

920-430-8113

Dr. Daniel Linehan is a board-certified orthopedic surgeon and OSMS physician owner. He has been caring for patients at OSMS for over 25 years, treating conditions such as fractures and sports-related injuries and performing joint replacement surgery.

Joseph McCormick MD

Orthopedic Surgeon / Owner

Locations: Chilton Fox Valley

920-430-8113

Dr. Joseph McCormick is a board-certified orthopedic surgeon. While he treats most orthopedic conditions, his expertise lies in joint replacement surgery, sports-related injuries and pediatrics.

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