Atul K. Singhal, MD
Dr. Singhal is Board-Certified in Rheumatology and has over 30 years of clinical experience. He earned his medical degree from the All India Institute of Medical Sciences in New Delhi. He then completed a residency in Internal Medicine at State University of New York at Stony Brook and fellowship training in Rheumatology and Geriatric Medicine at the University of Pennsylvania. Dr. Singhal has served as an Attending Physician at various hospitals on the East Coast and in Texas, and he founded his practice in Mesquite in 1997. He has a keen interest in clinical research, and he has overseen and participated in over 150 clinical research trials. Dr. Singhal is married with four children and has lived in Dallas since 1995.
Carmen Campbell, MD
Dr. Campbell is Board-Certified in Internal Medicine and Rheumatology. She earned her medical degree from the University of Arizona in Tucson. She then completed her Internal Medicine residency followed by a year as Chief Resident at the University of Wisconsin in Madison. She subsequently completed her Rheumatology fellowship at the University of Wisconsin in Madison. Following fellowship, she moved to Dallas with her family and shortly thereafter joined Southwest Rheumatology in November 2015. Her areas of special interest include Systemic Lupus Erythematous (SLE) and Antiphospholipid Syndrome. In her free time, she enjoys spending time with her husband, two young sons, and dogs.
Mei-An Ty-Arias, MD
Dr. Ty-Arias is a Board-Certified physician in Internal Medicine and Rheumatology. She earned her medical degree from the University of Santo Tomas Faculty of Medicine and Surgery in the Philippines. She then completed Internal Medicine residency at Harlem Hospital Center in affiliation with Columbia University in New York. She subsequently completed her Rheumatology fellowship at Drexel University College of Medicine in Philadelphia, PA. Following two years of rheumatology practice in Beaumont, TX, Dr. Ty-Arias relocated to Dallas in 2019 to join Southwest Rheumatology. Her areas of special interest include spondylitis, rheumatoid arthritis, and osteoporosis. She is married with a son, and in her free time she enjoys gardening and cooking.
Pedro Castillo, MD
Dr. Castillo is Board-Certified in Internal Medicine and Board-Eligible in Rheumatology. He earned his medical degree at the University of Texas Southwestern, where he was an Alumni Scholarship recipient. He completed his Internal Medicine training and Rheumatology fellowship at University of Texas Southwestern. While completing his fellowship training, Dr. Castillo worked as a nocturnist at Clements, Zale Lipshy, Dallas VA, and Vibra hospitals. His special interests in rheumatology include scleroderma and rheumatoid arthritis. He is married and has two children. In his free time, he enjoys spending time with family, reading, board games, and watching football.