Stephen G. Thon, MD

Orthopedic Surgeon - Sports Medicine
★★★★★ ★★★★★
Sports Medicine; Arthroscopy: Shoulder, Knee, Hip & Elbow; ACL Reconstruction; Shoulder Replacement
Fax: 303-344-1922

Dr. Stephen Thon is an orthopedic surgeon born and raised in Denver, Colorado, now practicing in the south Denver area. He is fellowship trained in the field of orthopedic Sports Medicine, where he received expert training in arthroscopic and minimally invasive orthopedic procedures. He focuses on advanced arthroscopic techniques for repair and complex reconstruction of the shoulder, elbow, hip, and knee joints. He has received specialized training in primary and revision rotator cuff repair surgery, shoulder instability surgery, anterior cruciate ligament (ACL) reconstruction, and shoulder replacement (shoulder arthroplasty). Dr. Thon also has a special interest in injury prevention, especially for youth and adolescent athletes.

Dr. Thon grew up in southeast Denver and attended Cherry Creek High School. He completed his undergraduate degree from the University of Colorado – Boulder with bachelor’s degrees in Biochemistry and Integrative Physiology while playing collegiate and club rugby. He earned his medical degree (MD) and completed his Orthopedic Surgery Residency at Tulane University in New Orleans, LA, where he was a Chief Resident.

Following his residency training, Dr. Thon sought out sub-specialty training in the field of Orthopedic Sports Medicine and Shoulder surgery at the University of Colorado – Anschutz Medical Center. During his fellowship, he served as team physician for the NHL Colorado Avalanche; University of Colorado Buffaloes football, basketball, and soccer teams; Denver University Pioneers hockey, soccer, and lacrosse teams, along with a variety of local high school athletic teams in the Denver/Boulder area. Dr. Thon’s fellowship training focused on the surgical management of complex sports injuries in athletes of all levels. Dr. Thon takes care of athletes and non-athletes alike. He is committed to providing the highest quality of care for his patients so they may return to the life they want as quickly and safely as possible. In addition to his clinical work, he is dedicated to advancing the field of orthopedics through research and has published multiple articles and book chapters throughout his career.

After completing his fellowship, Dr. Thon started practice in Denver, CO, to be close to his family and serve the community that he grew up in. When not practicing orthopedics, Dr. Thon can be found enjoying the outdoors with his wife, Keleigh, and their two dogs, Blue and Hefe. They love participating in every season Colorado has to offer, from taking the dogs hiking in the summer and skiing in the winter. He is an ardent fan of all Colorado sports, including the Broncos, Avalanche, Nuggets, and Rockies, and an adopted fan of the New Orleans Saints.

Please review Dr. Thon’s list of credentials and contact our practice for more information or to make an appointment at (303) 344-9090.


  • Fellowship: Sports Medicine – University of Colorado Anschutz Medical Campus
  • Residency: Orthopedic Surgery – Tulane University, New Orleans
  • Medical School: M.D. – Tulane University of Medicine, New Orleans
  • Undergraduate School: B.A. – University of Colorado, Boulder

Board Certifications

  • Board Certified – Orthopedic Surgery

Memberships & Organizations

  • AOA (Alpha Omega Alpha Honor Medical Society)
  • AOSSM (American Orthopedic Society for Sports Medicine)
  • COS (Clinical Orthopedic Society)
  • SOA (Southern Orthopedic Association)
  • AANA (Arthroscopic Association of America)
  • LOA (Louisiana Orthopedic Association)
  • AAOS (American Academy of Orthopedic Surgeons)
  • AMA (American Medical Association)

Interests & Hobbies

  • Enjoying the outdoors
  • Hiking
  • Skiing
  • Cheering for Colorado Professional Sports Teams


Dr. Thon's Reviews
Stuart MorseStuart Morse
23:29 08 May 24
Got in timely. Visit was efficient but thorough. Solved my problem and I feel so much better. What more could a patient ask for?
Steve SmithSteve Smith
22:19 08 May 24
As always Dr Thon is great! Informative and understanding!
Kevin -Kevin -
22:31 01 May 24
Pat FickettPat Fickett
21:50 27 Mar 24
Excellent care. Listening physician. Very pleased with all aspects of my experience.
Christina VasquezChristina Vasquez
18:32 27 Mar 24
I was very grateful having Dr. Thon as my surgeon. He and his staff are very caring and professional. I am on the road to recovery from knee surgery and what a difference it has made me feel. Thank you!!
Drew EvansDrew Evans
15:26 07 Mar 24
Susan RazeeSusan Razee
02:44 07 Mar 24
I was extremely impressed with Dr Thon. He was very knowledgeable and pleasant. He made my experience there really nice. I believe he went above and beyond to get me an appointment sooner than later. I was also impressed with him as a surgeon. I would highly recommend him.
Vanessa JamisonVanessa Jamison
20:38 06 Mar 24
Dr. Thon is amazing. Very knowledgeable, caring, and an excellent doctor!
Rich mRich m
17:02 29 Feb 24
Dr Thon is the only dr I’ve ever trusted as much as I do. If he is your surgeon. You’re in good hands. He’s compassionate and talented
Rhonda BellRhonda Bell
15:44 22 Feb 24
Front desk was very polite and helpful. Dr. Thon was very informative and thorough in explaining my MRI and giving me my options for recovery
20:24 13 Dec 23
Dr. Thon is an outstanding orthopedic surgeon. He is highly skilled, delivers exceptional results, and has the best patient communication skills of any physician I’ve used in 80 years. He has done my hip fracture, arm fracture , and knee pain management.
Kitty KoldingKitty Kolding
21:38 01 Nov 23
This was an exceptional patient experience. I was able to make an appointment quickly, got in to see Dr. Thon. He rapidly sorted out what my problem was and administered treatment right away, with a clear set of next steps for the remainder of my treatment to truly solve my problem. Dr Thon is smart, pleasant, knowledgeable, and seemed legitimately interested in helping me. I would give him and the group 10 stars if I could.
Dr. Thon's Locations