I had 36 1-hour rTMS treatments recently. It was fully covered by private Blue Cross. It is not considered experimental in fact, the federal government is using TMS at Veterans Hospitals. I think the physician conducting the treatments are critical in advocating for you with the insurance company. Obviously you meet the criteria for treatment if you have already undergone ECT treatment. The costs are about $200-250/session in my area. As I said I had 36-treatments so it's well worth fighting the ins. To cover the cost. Unfortunately, the treatments did not work for me (TRD that failed ECT as well) so my next treatment will be Ketamine Infusions which is NOT covered by any insurance. Best wishes & I hope the TMS works for you!