Best Rheumatoid Arthritis Doctors Worldwide — TOP 6

Dr. Mustafa Serdar Sag is a rheumatologist at Medipol Acibadem District Hospital in Istanbul. He specializes in treating ankylosing spondylitis and rheumatoid arthritis. Dr. Sag holds dual board certifications in Physical Medicine and Rehabilitation and Rheumatology.

• Specializes in musculoskeletal ultrasound and autoimmune disease management.
• Published international research on rituximab treatment and motor neuron excitability.
• Member of the Turkish Society for Rheumatology.
• Practices at a JCI-accredited facility equipped with advanced interventional radiology.

Dr. Kasama Wiroskoolchai is a wellness specialist at Mali Interdisciplinary Hospital in Bangkok. Dr. Wiroskoolchai focuses on combining conventional and precision medicine to treat chronic conditions. The doctor manages non-communicable diseases like type 1 and type 2 diabetes. This approach aims to improve quality of life and longevity through restorative care.

• Specializes in pharmacopuncture and rehabilitation after stroke or traumatic brain injury.
• Treats autoimmune conditions, including rheumatoid arthritis and autoimmune hepatitis.
• Works at a facility accredited by the GHA and AACI for international patient safety.
• Uses regenerative techniques to help tissue repair and prevent disease complications.

Dr. Pnina Langevich leads the National Center for Rheumatology at Sheba Medical Center. She is a former Vice President of the World Association of Rheumatologists. Forbes Israel has repeatedly named her among the country’s top doctors. Dr. Langevich treats severe cases of lupus, scleroderma, and rheumatoid arthritis.

• Served for 12 years as Vice President of the World Association of Rheumatologists.
• Functions as the Editor–in–Chief of the international medical journal Lupus.
• Specializes in managing treatment–resistant autoimmune and joint diseases.
• Works at Sheba Medical Center, ranked 7th worldwide by Newsweek in 2026.

Dr. Andres Martinez is a physician. He specializes in Internal Medicine (UBA, 2020; MEN validation, 2023) and in Rheumatology (UBA/SAR, 2023; MEN validation, 2024). He earned his MD from Universidad Militar Nueva Granada in 2009.

He is a Rheumatology specialist at BIOMAB, Bogotá (Nov 2024–present). He previously worked at SIES Salud, Cúcuta (Dec 2023–Mar 2025) and Centros Médicos Sanitas, Villavicencio (Apr–Jul 2025). He completed Rheumatology training at Hospital Bernardino Rivadavia (2020–2023). He finished an Internal Medicine residency at Sanatorio Franchin (2016–2020).

His background includes emergency and primary care roles across Colombia (2010–2015). He also served as a sub-investigator in a dengue vaccine study (2013).