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New member? Apply here

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Renewing your membership? Pay your invoice through the member portal
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Need help? Contact us at [email protected] or give us a call at 888-695-0515.

Member Types

Regular Member
Practicing Orthopaedic Surgeon (MD/DO) residing in the US or Canada, and a diplomat of ABOS, AOBOS, or the Royal College of Physicians of Canada.
$300 per year

International Member
Orthopaedic Surgeon who resides outside of the US or Canada.
$300 per year

Candidate Member
Orthopaedic Surgeon (MD/DO) residing in the US or Canada who has graduated from an orthopaedic residency program accredited by the LCME, CACMS or AOA and has not yet achieved board certification. Upon Board certification, the Candidate will advance to Regular Membership.
$75 per year

Resident Member
Orthopaedic surgeon enrolled in an approved residency or fellowship program in the US or Canada. Upon completion of training, graduates may advance to Candidate Membership.
$40 per year

Allied Health Professional Member
Physician Associate, Nurse Practitioner or other health care professional working in an orthopaedic setting.
$40 per year

Medical Student Member
Current medical student interested in pursuing a career in Orthopaedic Surgery.

Emeritus Member *
Dues paying member in good standing for a minimum of seven (7) years may become an Emeritus Member upon retirement from active practice or upon reaching seventy (70) years of age.
$25 per year
* Please call COS at 888-695-0515 to pay dues and set up your online account.

New Members - Join COS
Renewing Members - Pay Dues

Member Benefits

View your membership benefits here.