Behnam Khaleghi | Rheumatologist Rheumatologist in Orange County, California Our Services Dr Behnam Khaleghi focuses on conservative, non-surgical treatment of osteoarthritis and regional musculoskeletal conditions such as bursitis and tendonitis. Treatment includes the use of medications, joint injections, and physical therapy. Dr Behnam Khaleghi at Pacific Rheumatology also treats auto-immune forms of arthritis including rheumatoid arthritis, psoriatic arthritis, and ankylosing spondylitis. Ir