Dr. Caplan was born and raised in Richmond, Virginia and came to medicine after starting his career initially in the arts in New York City in modern dance publicity and in theater management.

He is double board-certified, in internal medicine and dermatology. At NYU Langone his goal is to provide the highest level of care and work closely with colleagues across the healthcare system. He focuses on treating people who have sarcoidosis and other complex medical conditions that require interdisciplinary care. Together they aim to provide holistic care of people with sarcoidosis, to better understand this disease, and to employ the most updated therapies for the benefit of patients.

He also works closely with experts from the Inflammatory Bowel Disease Center to treat skin conditions caused by IBD or the medications used to treat this disease.