If you are a patient of Dr. Neil Stahl, please do not self-schedule your appointment. Instead, please call our office at (703) 573-2220. Records for Dr. Stahl's patients can be faxed to (703) 573-7767. Welcome to ARA Arthritis and Rheumatism Associates, P.C., is the largest Rheumatology practice in the Washington, D.C., area..