I tried doing my macro like this
/cast [target=pinotgrigio] [mod:shift] Healing Wave; [mod:ctrl] Lesser Healing Wave; Chain Heal

It should cast chain heal without modifiers. For some reason it cast healing wave if you press the key without modifiers. The only way I can get it to work is do the macro like this.

/tar pinotgrigio
/cast [mod:shift] Healing Wave; [mod:ctrl] Lesser Healing Wave; Chain Heal

Unless I have something incorrect in my above macro I think this is the only way for me to get it working. Any suggestions?