Payers change too often to keep a list here that is correct.
If you are currently affiliated with a clearinghouse your best resource is to look at the payer list they provide. It will tell you enrollment details and what services that payer supplies.
If you are shopping for a clearinghouse, then you need to collect some information before making a selection:
1 - You need to know if you will file Professional claims (they print on a CMS-1500 form.) or Institutional Claims (they print on a UB-92 form).
2- You need to collect the heavy hitters - payers that will be the bulk of your filing. Medicare, Medicaid, Blue Cross/Shield, etc.
3 - How many claims do you file a month? How many providers/facilities are in your system?
From that information we can look at the different plans available and make a best match for you. Sometimes a per claim plan fits best, sometimes an unlimited per provider plan is your best option. We have worked with our Clearinghouse partners for many years and can recommend options.

Payer List