2023 ACOS-MSS Fall Conference

Join us in the windy city this fall for the 2023 ACOS-MSS Fall Conference. This year's conference will be held September 22-23 in conjunction with the Annual Clinical Assembly  (ACA) at the Chicago Marriott Downtown Magnificent Mile in Chicago, Illinois.

About the Host Hotel

The Chicago Marriott Downtown Magnificent Mile is ideally located on Chicago’s famous Magnificent Mile, offering guests a playground of endless shopping. Nestled in the heart of Chicago, ACA attendees will have varied, delectable options for fine dining and entertainment as the hotel boasts "over 170 restaurants and 138 bars within an 8-block radius." 

ACOS traditionally reserves a block of rooms for ACA attendees. Be sure to reference this section for a registrants-only link to secure the discounted rate for your attendance at this year's ACA. 

The ACOS Medical Student Section has reserved the following Hotel Room Blocks: 

  1. Hotel Felix Chicago

    111 W Huron Street Chicago, IL 60654
    Room Rate: $159/night
    Booking your Hotel Room: Hotel Felix Booking Link
    or call the hotel directly at (312) 447-3440
    Booking Deadline: Tuesday, August 22nd 2023

  2. Millennium Knickerbocker Hotel Chicago
    163 E Walton Place Chicago, IL 60611
    Room Rate: $159/night
    Booking your Hotel Room: Millennium Hotel Booking Link
    or call the hotel directly at (312) 751-8100
    Booking Deadline: Monday, August 28th 2023


Student Registration is limited to 200 attendees. Registration will close when that limit is reached.

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

Student Member



Student Non-Member




ACOS Student Membership

ACOS Student Members may register for ACOS-MSS meetings at the reduced member rate. To apply for membership, submit an online membership application  with your $30 payment. Students enrolled in AOA-accredited colleges of osteopathic medicine who have an interest in the pursuit of surgical training may apply for ACOS Medical Student Section membership. Student membership offers medical students an opportunity to become more familiar with the surgical specialties and the American College of Osteopathic Surgeons (ACOS). Student membership expires upon graduation from an AOA-accredited college of osteopathic medicine.