Primary Care - Barton. 488 Elm Street Barton, Vermont 05822 (802) 525-3539 . Clinical Services: Cardiac Rehabilitation - 334-3264 Diabetes Education/Nutrition Services - 334-4155 Dialysis - 334-2711 Laboratory - 334-3222 Outpatient Treatment Center - 334-3234 Pain Treatment - 334-3584 Pulmonology - 334-3212 Radiology - 334-3250 Rehab Services - 334-3260.