INTERTEL, INC. - Worldwide Medical Canvassing INTERTEL, the nationally recognized leader and industry architect, provides the ... most secure, consistent & quality information to the claims industry. INTERTEL takes pride in working closely with its Clients and Strategic Partners to achieve goals and objectives. As one of the original companies to offer these types of services, INTERTEL's dedicated resources are highly specialized & bring over 24 years experience in the Medical Canvassing field. Currently, INTERTEL maintains the largest canvass operation in the country. Split between 2 cities (St. Louis & Denver) and 4 locations, INTERTEL's full time canvassing staff has the logistical capabilities to continually offer the best-in-class service and results. Just one of the many reasons we invite you to… > FOLLOW THE LEADER read more