Yes you can have your Tracfone changed over to Verizon wireless service but you'll need to change out your SIM card and get the Tracfone flashed from Tracfone To Verizon Wireless and get an unlock code for your Tracfone from Tracfone.
You'll need to get the Tracfone Unlocked and then you can flash it to Verizon and change out the SIM card for a Verizon wireless SIM card.