Welcome to

Prevea Orthopedics and Sports Medicine

Schedule with the home team doctors

doctor michael ryan and patrick mckenzie headshots doctor michael ryan and patrick mckenzie headshots

Get the same care as the pros 

At Prevea Orthopedics & Sports Medicine, you receive the same expert care trusted by professional athletes. Our team features renowned specialists like Dr. Patrick McKenzie, Dr. Michael K. Ryan, Dr. Alan Shamrock and  Dr. Jeremy Metzler. Whether you're a local professional athlete or simply need top-tier orthopedic care, they are here to help you live life to the fullest. Call (920) 272-3300 to schedule an appointment.

Trusted by professional athletes

Dr. Patrick McKenzie, Dr. Michael K. Ryan, Dr. Alan Shamrock and Dr. Jeremy Metzler have extensive experience in treating high-performance athletes, especially the collegiate and professional athletes right here in Green Bay. They understand the unique demands of sports and the critical importance of precise, effective treatment. Their expertise ensures you receive the highest quality care, tailored to your specific needs. 

First-round choice for hip, knee, shoulder, foot and ankle care 

At Prevea, we understand that every patient is unique. Our goal is to provide personalized treatment plans that cater to your individual lifestyle and activity level, ensuring the best possible outcomes. From diagnosis to treatment and rehabilitation, we are committed to helping you return to peak performance. 

 



   

 

Dr. Patrick McKenzie and Dr. Michael K. Ryan are highly skilled in treating hip, knee and shoulder conditions. With state-of-the-art techniques and personalized care plans, they aim to get you back on your feet and moving freely. 

  • Abnormal femoral rotation 
  • Anterior hip replacement 
  • Hamstring tendon repair 
  • Hip dislocation 
  • Hip dysplasia 
  • Hip impingement and labral tear 
  • Hip injury 
  • Hip labral reconstruction 
  • Hip preservation 
  • ACL injury 
  • Cartilage injury 
  • Knee arthritis 
  • Knee injury 
  • Multi-ligament knee injury 
  • Meniscus injury 
  • Bicep tendon injury 
  • Golfer’s elbow 
  • Rotator cuff injury 
  • Shoulder and elbow arthritis 
  • Shoulder instability and labral tears 
  • Tennis elbow 
  • UCL injury (Tommy John surgery) 






Dr. Alan Shamrock is a world-renowned dual fellowship-trained orthopedic sport medicine and orthopedic foot and ankle surgeon. He treats a wide range of injuries from lower-extremity performance-related issues to complex foot and ankle conditions, keeping athletes and active individuals in top form with the best recovery strategies. 

  • Athletic injuries 
  • Arthritis 
  • Flatfoot correction 
  • High arch correction 
  • Bunion correction 
  • Hammertoe correction 
  • Trauma and fractures 
  • Reconstructive foot and ankle surgery 
  • Total ankle replacement 

Dr. Jeremy Metzler, a highly skilled family medicine and sports medicine physician, utilizes advanced techniques and customized care plans to help active adults and athletes stay at the top of their game, ensuring you can perform at your very best. 

  • Casting and splinting 
  • Concussion management 
  • Platelet rich plasma therapy 
  • Prolotherapy 
  • Tenex Health TX® for tendon pain 
  • Ultrasound evaluation 
  • Ultrasound-guided joint injections

Experience the premier choice for orthopedics and sports medicine. Specializing in you, for all the ways you move.

Schedule an appointment today

Don’t settle for anything less than the best. Schedule an appointment today and experience the exceptional home team care trusted by professional athletes.

(920) 272-3300 
HSHS St. Mary’s Hospital Medical Center – Prevea Orthopedics & Sports Medicine 
1726 Shawano Ave., Green Bay, WI 54303

Meet the physicians

Alan Shamrock
Alan Shamrock, MD

Orthopedic, Sports Medicine and Foot/Ankle Surgeon

Jeremy Metzler
Jeremy Metzler, MD

Sports Medicine and Family Medicine Physician

Michael K. Ryan
Michael K. Ryan, MD

Orthopedics and Sports Medicine Surgeon

Patrick McKenzie
Patrick McKenzie, MD

Orthopedics and Sports Medicine Surgeon