VistA Service Providers         DSS, Inc. www.docstorsys.com contact: Mark Byers, CEO phone: 561.227.0207 DSS, Inc.’s core competency is integration to the VHA’s VistA/CPRS system. For the past 12 years DSS, Inc. has specialized in developing its own VistA/CPRS Electronic Medical Record and Administrative programs and interfacing (COTS) Vendors/Partners Commercial Software into VistA/CPRS.