Rheumatologist OnCall® is a pioneering telemedicine practice and the first platform to offer direct specialty care to patients with arthritis and autoimmune diseases across multiple U.S. states. By connecting patients directly with a board-certified rheumatologist, it removes the delays and barriers of the traditional insurance model—delivering expert diagnosis and management of arthritis, autoimmune, and inflammatory conditions in days rather than months. The practice pairs accessible, transparent, cost-conscious care with a deep commitment to patient education, empowering people to understand their conditions and take control of their health.

Dr. Diana M. Girnita, MD, PhD, FACR, is the Founder and CEO of Rheumatologist OnCall, a board-certified rheumatologist. Her groundbreaking work in telemedicine and direct care has been featured in the New York Times, Medscape, KevinMD, and other publications. An internationally recognized speaker, author, and educator, Dr. Girnita reaches a wide audience through her popular YouTube channel, with over 35 million views, and her patient-centered books on living with rheumatic conditions. A passionate advocate for patient education and empowerment, she collaborates with organizations such as the American College of Rheumatology and the National Arthritis Foundation, and is a strong proponent of direct specialty care that gives both physicians and patients control over their healthcare while promoting transparent pricing and lower costs. In 2021, she co-founded the Direct Specialty Care Alliance, an organization dedicated to advancing the direct specialty care model and transforming access to specialty healthcare.