The short answer is yes.
There are two major fora for that. NATO has a committee on the use of medical services. All of the surgeons general of the NATO nations and the partnership for peace nations meet twice a year. They have an elaborate substructure of expert panels and working groups, which they can direct to examine specific issues to ensure commonality of approach. There is also cooperative research done at the NATO level via a smaller, more cohesive group. An analogue to that would be Australia, Britain, Canada, and the United States, the ABCA countries, which actually include New Zealand, although they don't get their initials on the title. So a group of very similar nations address how to approach medicine, and interoperability there has worked very well. Of course, our biggest one-on-one exchange is with the United States.
It may interest the committee to know that in fact the facility that is Canadian-led in Kandahar also has contributions from the Netherlands, Denmark, Australia, New Zealand, the United States, and the United Kingdom, all working together to make that one facility work.