Patient Portal ON CALL SUPPORT Televisit Instructions. Menu. Home; OUR PRACTICE; Our Team; News and Insight; Locations; Vascular Center; Contact us; FOR HEALTHCARE PROVIDERS; FOR PATIENTS; FOR CAREGIVERS; SOUTH DALLAS (972) 274-5555. ... Our first encounter with Dallas Renal Group was in November, 2006. Following a year of undiagonsed illness ....