Mark J. Klion, M.D.

Mark J. Klion, M.D.

Sports Medicine
Arthroscopic Surgery


Sports Medicine and Arthroscopic Surgery
Reconstructive shoulder and knee surgery


Board Certified: American Board of Orthopedic Surgery
Recertified (ABOS)


The University of Chicago, Dr. Bruce Reider


Mount Sinai Medical Center, New York


Mount Sinai Medical Center, New York


Mount Sinai School of Medicine


Columbia University


St Lawrence University, Canton NY

Dr. Mark Klion is a Board Certified Orthopedic Surgeon with specialty training in sports medicine.

After receiving a Bachelors degree from St. Lawrence University, he went on to obtain his medical degree from the Mount Sinai School of Medicine.

He completed his residency in Orthopedic Surgery at the Mount Sinai Hospital. He then completed a fellowship in Sports Medicine at the University of Chicago. During this year, he gained specialization in arthroscopic surgery and reconstructive knee and shoulder surgery. Dr. Klion is a clinical instructor at the Mount Sinai School of Medicine and is an active member of the Shoulder and Sports Medicine Service. He is an active educator for the medical school and the Department of Orthopedic Surgery. He is also the Director of Orthopedics at St Barnabas Hospital in Bronx, NY, A level 2 Trauma Center.

Dr. Klion performs the newest techniques for Knee, Shoulder, and Hip arthroscopy including cartilage repair, regeneration, meniscal transplantation, and labral repairs Dr. Klion has extensive experience with arthroscopic rotator cuff repairs and shoulder stabilization procedures. He has extensive experience in fracture care and management.

Dr. Klion’s outside interests include triathlon participation that has led him to participate in 11 Ironman triathlons including Hawaii Ironman 2000 and 2001. He has completed 15 marathons in addition to many ultra distance running and biking races. He serves as the Medical Director for the New York City Triathlon. He has published numerous articles on sports medicine issues and has appeared on both regional and national radio and television programs. He is active in the triathlon and endurance community providing lectures about sports medicine related issues to local clubs and groups.


Dr. Klion Press

TV Appearances:
10/07 NBC Dr Max Gomez: Marathon Tips.
1/1/08 NY1: Benefits of Stretching.

Radio Appearances:
March 10,2008 ESPN Radio. Overuse Baseball Injuries.
November 2006 NY Jets Radio.
10.10.07 Sound Health 88.5 FM Sheri Lawson.
1.08.08 Jim Krandell KHTK sacramento calif sports injuries.

News Releases:
Take that, body fat! Nintendo’s Wii is getting video game players off the couch and into a mini-workout
Big Red Alumni Speak Out By Dan O’Neill, ST. LOUIS POST-DISPATCH 10/28/2007.
Stretching. Daily News, May 3 2007.
Groin Injuries. Daily News, June 6,2007.

Dr. Klion Research


Klion MJ,Reider B. Knee Injuries in Children and Adolescents : menisci and Ligaments. Sports Med and Arthr Rev,1996;4:159-175.


Orthopaedics for the Primary Care Provider
- Presentation: Patellofemoral Problems
- The Mount Sinai Hospital, New York, NY
- November 3, 2007.

Functional Anatomy Course
- Presentation: Lower extremity Injuries
- The Mount Sinai Hospital, New York, NY
- July, 2006, July 2007.

Orthopaedics at Mount Sinai Mini-Med Lecture Series
- Presentation: Lower extremity running injuries
- The Mount Sinai Hospital, New York, NY
- May 3, 2006.

Dr. Klion in Action

Patient Reviews

Checking in is handle by an excellent staff. The waiting room is very comfortable. The appointment was kept on time. Dr. Klion is an excellent Doctor. The examination was efficient and thorough. He explained the diagnosis and I will follow his advice.
Bob S.

Verified Google Review

I waiting 2 minutes until was I taken into the exam room where I saw Dr. Klion. He was very thorough with his examination and listen to all my concerns. The sonogram was done right there by the doctor to confirm a diagnosis. I was in and out in 15 minutes. That’s how all doctor visits should be.

Adam K.

Verified Google Review

Incredibly knowledgeable and thorough healthcare. Both Dr.’s Klion and Cleeman are exceptionally talented physicians. Their practice is very well organized and their attention to detail and patient care makes for a very satisfying experience.
Vince R.

Verified Google Review


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At Manhattan Orthopedics, our team of board-certified orthopedic surgeons is dedicated to providing our patients with personalized, comprehensive orthopedic and rehabilitation care.


57 West 57th Street, 15th Fl
New York, NY 10019

27-31 Crescent Street
Long Island City, NY 11102