I was asked privately what group I went to Haiti with. I thought it might be of more general interest:

Federal Dep't of Health and Human Services, National Disaster Medical System, Disaster Medical Assistance Team Florida 1.

http://www.hhs.gov/aspr/opeo/ndms/index.html

http://www.floridaonedmat.com/

Basically, a system of disaster medical teams throughout the US, capable of rapid deployment and equipped to set up and operate austere field hospitals, perform casualty collection and evacuation, and augment damaged or overwhelmed local medical infrastructure.

We are classified as a unformed, non-military service, and have the same legal job status as guardsmen and reservists when deployed.