Mast cell activation syndrome (MCAS) affects more than 15% of the U.S. population but evades most practitioners’ radar. Just five years ago, it wasn’t even on my radar, despite already having 20 years of experience as a clinician at that time. The more I dug (similar to leaky gut and post-COVID syndrome), the more I found my patients were suffering from this disorder.
John Donald, LAc
John Donald, LAc, maintains a private practice in Issaquah, Wash. He is an adjunct faculty member at Bastyr University, where he teaches practice management, and is a former board member for the Acupuncture Association of Washington. He also is the author of a book on insurance billing titled Insurance Billing For CAM Providers: A Survival Guide For Alternative Health Practitioners.