Societies

• Past Fellow, American College of Physicians
• Founding Fellow, American College Rheumatology
• Past Member, American Federation for Clinical Research Past Member, Western Society for Clinical Research
• Member, Southern California Rheumatism Society
• Past Member, Society of Experimental Biology and Medicine
• Past Member, Los Angeles Society for Internal Medicine
• Past Member, Western Association of Physicians
• Past Member, Western Bone Society
• Member, International Skeletal Society
• Honorary Member, Argentina Society of Rheumatism
• Honorary Member, La Sociedad Chilena De Reumatologia
• Honorary Member, Sociedad medica De Santiago (Chile)
• Honorary Member, American Osteopathic College of Rheumatology
• Honorary Member, Italian Society of Rheumatology
• Honorary Member, American Academy of Neurological Orthopedic Surgery
• Honorary Member, New Orleans Academy of Internal Medicine
• Honorary Member, Brazilian Society of Rheumatology
• Member, Los Angeles County Medical Association
• Member, California Medical Association Member, Lupus Foundation of America, Inc. Life Time Member (1988-present)
• Member, Past Chairman, Ankylosing Spondylitis Association of America (Spondylitis Association) (1985present)
• Member, Medical Advisory Board, Lupus Foundation of America, Inc., Southern California Chapter (1993 to present)
• Member, the OsteoSystems Advisory Board, CompuMed Inc., 1994 Member, Medical & Scientific Advisory Board, Spondylitis Association of America, 1996 to present.