If you are looking for an allergist in Chevy Chase MD, then an allergist at The Institute for Asthma and Allergy in Chevy Chase MD can help you. About. Physicians. Athena Economides, MD; Huamin Henry Li, MD; ... Patient Portal; Chevy Chase Office : 301-962-5800; Wheaton Office : 301-962-5800; Chevy Chase Office.