Introduction for Dr. Nathan Wei Dr. Nathan Wei (pronounced “way”) is a nationally known arthritis expert and consultant. A graduate of Swarthmore College and the Jefferson Medical College, he completed his residency at the University of Michigan in Ann Arbor, Michigan and his arthritis training at the National Institutes of Health in Bethesda, Maryland. Dr. Wei is a former consultant to the National Institutes of Health. He is the author of more than 65 articles in the peer reviewed literature and has appeared on NBC TV, PBS, The Leading Experts Show, and has been featured in Arthritis Today, Women’s Day, The Washington Post, and Martha Stewart Living. He has an international reputation for his expertise in regenerative medicine