T-Mobile S5 on Verizon network... Is it possible?

I've been with T-Mobile for many years and am currently using a rooted S5. Recently moved to a rural area where the only good cell signal is Verizon, so thinking of switching. Is it still true that GSM and CDMA phones are not at all compatible on each other's networks, or is this possible? My S5 is all paid off and working fine, so I'd hate to have to start over with paying for a new device since Verizon has now gone to the same "non-subsidized" equipment model as TMO.