Our Locations


Mary Jo Holloran, MS, CRNP and Cat Volkmann, RN honored by Baltimore Magazine for "Excellence in Nursing"March 1, 2018
Towson Orthopaedic Nurses Honored by Baltimore Magazine
Congratulations to our Baltimore Magazine’s “Excellence in Nursing” winners, Mary Jo Holloran, MS, CRNP and Cat Volkmann, RN!

February 19, 2018
Orthopaedic Care, Physical Therapy & Cardiovascular Therapy in Your Community
We’re proud to provide specialists from Towson Orthopaedic Associates, Towson Sports Medicine (Rosedale) & UM St. Joseph Cardiovascular Associates for 2 informative seminars…

UM St. Joseph Medical CenterJanuary 19th, 2018
SJMC Voted Among Top 20 Hospitals in the US for Hip & Knee Replacement
UM SJMC Voted #17 Top Hospital in the United States for Total Hip and Total Knee Replacement.

Patient Portal Bill Pay

Todd J. Tredinnick, M.D.

Sports Medicine Physician & Shoulder/Knee Specialist, Dr. Todd Tredinnick

Dr. Todd J. Tredinnick specializes in sports medicine and arthroscopic surgery of the shoulder and knee. As an orthopaedic surgeon who is fellowship-trained in sports medicine, Dr. Tredinnick has the added expertise needed to keep athletes of all ages at their desired competitive level. Since relocating from Los Angeles, his practice has focused on arthroscopic knee and shoulder procedures. Dr. Tredinnick, having practiced as a physical therapist prior to medical school, is also knowledgeable in the non-operative and post-operative rehabilitation techniques utilized in orthopaedic medicine. He currently serves as Team Orthopaedic Surgeon for Harford County Community College.

Dr. Tredinnick received his B.S. from The Pennsylvania State University, his M.S. in Physical Therapy from Duke University and his M.D. and post graduate surgical training from The Pennsylvania State University. He completed a fellowship in sports medicine at the Southern California Orthopaedic Institute.

Athletic Team Affiliations

Dr. Tredinnick is athletic team physician for: Harford Community College

In Addition…

Dr. Tredinnick is also a featured physician at Ironbirds games with the popular Towson Orthopaedic Associates’ segment, Ask The Doc.

ask_rot_cuff1   ask_rot_cuff2

Special Notes

In addition to treating high school, college and professional athletes, he also has a large general orthopaedic practice. Living in Bel Air with his wife and two boys, when Dr. Tredinnick is not working, he can be found on the sidelines of his sons’ athletic events.

What Dr. Tredinnick’s Patients Have to Say…

  • Dear Dr. Tredinnick: My husband and I would like to thank you for the fantastic work you did in putting my ankle back together. Everyone is apprehensive when coming in through the ER – but we were very grateful to have you on call that night. You made us know that all would be well again. Through the surgery, casts and now boot (yeah) we are so pleased. Thank you for being the thoughtful and extremely skilled doctor that you are.  


    — Skip & Sharon H.


  • Dr. Tredinnick:  Thank you so much for the wonderful job you did with Chris’ shoulder. He has no pain and his recovery has been great. This has probably been one of his best years in baseball.

    Thank you