INDIANAPOLIS, Jan. 10, 2013—National Government Services—the Jurisdiction B Durable Medical Equipment Medicare Administrative Contractor (DME MAC)—will be offering a free 90-minute Transcutaneous Electrical Nerve Stimulators (TENS) webinar on Weds., Jan. 23, 2013. This webinar will be conducted from 2:00-3:30 p.m. eastern time (ET) and is geared toward all suppliers who bill the DME MAC for TENS units and supplies.