Provider Guide on Lasso Claims Process
Lasso Claims Submission Form
Mail in Lasso Claim Address
P.O. Box 261709, Plano, TX 75026
Find A Medicare Doctor
Customer service
Customer Service for Medical Providers: (800) 579-0254 (Open 8am-8pm ET, 7 days a week Oct 1st - March 31st, and Monday-Friday from Apr 1st - Sep 30th)
Customer Service for Lasso Members: (866) 766-2583 (Open 8am-8pm ET, 7 days a week Oct 1st - March 31st, and Monday-Friday from Apr 1st - Sep 30th)