Orrin M. Troum BS, MD

Dr. Troum is a Clinical Professor of Medicine, Division of Rheumatology, at the Keck School of Medicine, University of Southern California. Dr Troum received his BS degree in biology at Tulane University, New Orleans, LA. He attended the Autonomous University of Guadalajara, School of Medicine and the College of Medicine and Dentistry of New Jersey prior to completing his internship/residency in internal medicine and fellowship in rheumatology at Los Angeles County/USC Medical Center. He is board certified in internal medicine and rheumatology and is also a certified clinical densitometrist by the International Society of Clinical Densitometry.

Dr Troum pioneered the use of extremity MRI in the evaluation, clinical decision process and outcome of patients with inflammatory arthritis. He is a founding member and treasurer of the International Society of Extremity MRI in Rheumatology. He serves on the board of directors of the Intersocietal Commission for the Accreditation of Magnetic Resonance Laboratories (ICAMRL). Dr Troum is a founding fellow of the American College of Rheumatology and a member of the Southern California Rheumatology Society (past president 1999-2000), California Rheumatology Alliance, Philadelphia Rheumatism Society, the American Society of Bone and Mineral Research and Osteoarthritis and Research Society International.

He served as a full-time faculty member (Acting Clinical Director of Rheumatology) at LAC/USC prior to starting his rheumatology private practice in 1986. He was a member of the board of directors (2003–2007) and is currently serving on the public policy & advocacy committee of the Arthritis Foundation’s largest US chapter in Southern California.

Dr Troum is the founder and medical director of the Westside Arthritis & Metabolism Center in Santa Monica, CA. His clinical trial research focuses on rheumatoid arthritis and other inflammatory arthropathies, osteoarthritis, osteoporosis, and metabolic disorders.