Click on the below carrier name to search their online provider directory Medicare Carriers Health Carriers Medicare Advantage Plans: Blue Cross of Idaho Humana Pacific Source Regence Blue Shield of Idaho Medicare Supplements: Continental Life - Aetna Mutual of Omaha PDP Carriers: Humana SilverScript Off Exchange Carriers: Blue Cross of Idaho Mountain Health Co-op Regence Blue Shield of Idaho Exchange Carriers: (through YourHealthIdaho.org) Blue Cross of Idaho BridgeSpan Mountain Health Co-op Pacific Source