Services The list of healthcare plans that OISD is currently participating in is as follow (updated 7/7/2010): Bravo Blue Cross Blue Shield Benefit Planner Choice Care Networks First Health Care Focus Healthcare HAS-Premier Healthsmart Medicare METRA COMP NHA (National Healthcare Alliance) Pacific Care Provider Railroad Medicare Texas Choice Tricare Southwest SMHPPO Medical Network Provider USA Managed Care The following healthcare plans are accepted out of network (updated 7/7/2010): AETNA United Healthcare Cigna Unicare