» Attentus Medical Sales 5750 North Sam Houston Parkway East, Suite 406 Houston, Texas 77032 Toll Free: 1-866-456-3929 Phone: 281-776-5188 Fax: 281-776-5199 » Customer Service Office Hours: Monday-Friday: 8 A.M. - 5 P.M. CST Toll Free: 1-866-456-3929 Phone: 281-776-5188 Fax: 281-776-5199