The (UHF) Med channels are there for medical control -- the medics are supposed to evaluate the patient, report to and get instructions from a doctor, and perform the instructions. They do have standard protocol for many common conditions and they have authority to proceed with many treatments if they are unable to contact the doctor.
JEMS 2 is for alerting EDs to incoming patients. JEMS 2 and the med channels serve different purposes, though the need for a JEMS 2 report could be negated if the medic's doctor is at the destination facility or if the destination is somehow party to the medic-doctor communications.
NJDOH&SS requires medic units to have ability on the Med channels.
medic2685, as of a year ago there was no indication to me, a former volly EMT-B in Middlesex County, that there was a VHF-High link to the Med channels in the RWJ (MedRescue) units. Are you referring to JFK or RBMC units? On the recent (less than a few years ago) rare occassions that I heard MR units use the med radio, it was always from the truck on the "input" frequency (but no repeater). The doctor talked back on the "output" frequency, and the medic in the truck relayed the instructions to the treating medic on JEMS 4 or their F-6 "Citywide."
MR units used to have mobile repeaters on the Med radio, but these may have been phased out when they upgraded to trunking UHF mobiles to have access to the various local Motorola UHF TRSs.
There is a license to RWJUH which I've been trying for a long time to ID. KD48620, (15) low-power mobiles/portables on 151.8650. If you're confident they do have a link, maybe that's it. Whatever it is, it's probably EMS because the license goes to the attention of Louis Sasso. Also, they renewed it recently so it probably isn't just a legacy license.
Jim