N.Y. Comp. Codes R. & Regs. tit. 10, § 69-4.22
(a) Providers shall, in the first instance and where applicable, seek payment from all third party payors, including governmental agencies, prior to claiming payment from a given municipality for evaluations conducted under the program and for services rendered to eligible children residing in the municipality and their families, provided, however, that the provider shall not obtain payment from a third party payor who is not prohibited from applying such payment, and may apply such payment, to an annual or lifetime limit specified in the insured's policy.
(2) The provider shall submit notice to the insurer or plan administrator of his or her exercise of the right of subrogation upon the provider’s assignment as the early intervention service provider for the child.
(3) Providers shall utilize the department’s fiscal agent and data system for claiming payment for evaluations and services rendered under the Early Intervention Program.
(4) Providers shall submit all claims for payment of evaluations and services within 90 days of the date of service, unless the submission is delayed due to extraordinary circumstances documented by the provider and the department’s fiscal agent has been notified of the extraordinary circumstances and has provided written acknowledgement.
(b) The municipality shall pay all co-payments and deductibles to meet any requirement of an insurance policy or health benefit plan in accessing funds applied to payment for early intervention services. These payments will be subject to the same level of State reimbursement as all other payments by the municipality for early intervention services.