We are excited to assemble for the 2023 Annual Clinical Assembly (ACA) taking place in Chicago, IL, at the Chicago Marriott Downtown Magnificent Mile. Do not miss this opportunity to take advantage of learning with osteopathic surgeons from across the nation, reunite with old friends, and make new connections!

Registration rates include discipline programming, keynote addresses, access to the exhibit hall, poster presentations, ACOS conclave reception, and more!

Early Bird


July 31

Late/Onsite Rate


July 31

Member & Resident Member in Practice - CME Eligible



Resident Member in Training Program - No CME Awarded



Non-Member in Practice - CME Eligible



Non-Member in Training Program - No CME Awarded



Retired Members - No CME Awarded



Cancellation & Refund Policy:  All cancellations and requests for refunds must be received in writing to [email protected] no later than Sunday, August 20, 2023, and are subject to a 20% cancellation fee.  No refunds will be offered on cancellations made after Sunday, August 20, 2023. Tickets included with the registration fee are non-refundable and there is no discount for unattended banquets and receptions. There are no refunds for "No Shows."

ACA Terms and Conditions: By registering for the 2023 ACA, you agree to the event’s Terms and Conditions, the ACOS Code of Conduct, and any Covid-19 protocol policies.  Please click here to read the 2023 ACA Terms and Conditions and ACOS Code of Conduct.

Registration Questions? Call 800-888-1312 or Email [email protected]