Copatient

Unlike the other firms listed above, which are largely focused on services and subscriptions, Copatient assists clients in finding a better solution for outstanding medical bills.

This is a distinct niche in the bill-negotiation world, and it might be beneficial to anyone dealing with medical bills. Copatient scours your medical bills, helps you understand what you're being charged for. Especially, it can make a decision on your behalf to minimize the expenses, whether it's a trip to the ER that returns a befuddling quantity of charges, a visit to an out-of-network doctor, or a payment for services not performed.

Cost: 35% of Negotiated Savings

Website: https://www.copatient.com/