Where the physician has not elected the comprehensive monthly payment, otherwise covered
            patient-care services of a nonsupervisory nature are reimbursable on a reasonable
            charge basis. Generally, they include but are not limited to, the following kinds
            of services: monthly and semiannual examinations, treatment of medical disabilities
            associated with renal disease, such as hypotension and hypertension—including acute
            medical emergencies, as well as incidental diagnosis and treatment of other acute
            and chronic medical conditions; administration of blood; insertion of fistula needles
            in difficult cases; shunt cannula declotting; and management during the dialysis procedure
            of medical problems which are not necessarily related to the dialysis process or to
            renal disease.
         
         When bills are submitted for such physicians' personal services, the carrier requires
            medical documentation of their necessity. Bills for physicians' personal services
            in connection with maintenance dialysis are not allowed without clear evidence of
            medical necessity.