News & Advocacy OAR Presents Advocacy Update At Annual Meeting posted: September 26, 2018 Paramount Revises Viscosupplementation Policy posted: September 26, 2018 OAR Membership Membership Signup Members: Physician Directory Membership Benefits / Join Now OAR Events » Please check back for more information about upcoming OAR events. Ohio Association of Rheumatology advocates and protects patient access to all appropriate treatments for rheumatic diseases. We establish and maintain clinical guidelines defining appropriate treatment of arthritis and rheumatic diseases. Our Doctors nurtures the interest and development of students in the field of rheumatology. The association of Rheumatology augments other organizations involved in arthritis care to enhance the quality of rheumatology services for all patients.