Services › Payer Affiliation& Roster Linking Image 1 of 1 Payer Affiliation& Roster Linking $125.00 Linking new clinical staff (Nurses, BCBAs, Counselors, BHTs) to Group NPI/Medicaid/MCO contracts for billing authorization. Add To Cart Added! Linking new clinical staff (Nurses, BCBAs, Counselors, BHTs) to Group NPI/Medicaid/MCO contracts for billing authorization.