1. (a) Required provider means a provider meeting any of the criteria listed in section 521.1 of this Part.

2. (b) Substantial portion of business operations means any of the following:

   1. (1) when a person, provider or affiliate claims or orders, or has claimed or has ordered, or should be reasonably expected to claim or order at least $500,000 in any consecutive 12-month period from the Medical Assistance Program;
   2. (2) when a person, provider or affiliate receives or has received, or should be reasonably expected to receive at least $500,000 in any consecutive 12-month period directly or indirectly from the Medical Assistance Program; or
   3. (3) when a person, provider or affiliate who submits or has submitted claims for care, services, or supplies to the Medical Assistance Program on behalf of another person or persons in the aggregate of at least $500,000 in any consecutive 12-month period.

For purposes of this Part, the definitions contained in Parts 504 and 515 of this Title shall apply. In addition, the following terms, as used in this Part, shall have the following meanings: