Contact Trellis Health Today. Help Us Route Your Request * I am ready to sign up for Trellis Health today. I am interested in membership and have more questions. I am an employer, broker, vendor, partner; please contact me. Name * First Name Last Name Email * Phone * (###) ### #### Message Thank your interest in Trellis Health, someone will be in touch shortly!FOR NEW TRELLIS HEALTH MEMBERS:To complete your new member registration, please call # (207) 661-3730 and have your insurance card available, if applicable. Fill out some info and we will be in touch shortly. To your health!