No. There isn't a clearinghouse out there that does ALL the insurances because not all of the insurance companies are set up that way. I did just check their payer list and they have very few insurances they are set up to do eligibility. Most clearinghouse have way more set up for eligibility but then again most clearinghouses aren't free. If you want a clearinghouse that has better eligibility options then look around to some of the paid clearinghouses like Gateway or ZirMed (they have way more payers with eligibility). Most of them will allow you to sign up just with eligibility if you still want to do your claims through Availity.