1-866-326-5293 rtahomecare.com 480-844-0100 accredited,licensed, M/C approved RTA Homecare, Inc. is an oxygen and medical equipment company serving AZ. Dependable oxygen service, medical equipment or supplies, there is one name the community has come to trust. We’ll help you to find the right home medical equipment for you. * Portable Oxygen Concentrators * CPAPs and Nebulizers * Scooters and Wheelchairs * Beds * Lift Chairs * Walkers * Bath and Ambulatory * All medical equip.