Yes, but the phone must meet a few requirements:
It must be a Verizon-branded device.
The ESN must be clear. You can check this by calling Verizon with the ESN to make sure it is not listed as lost/stolen, or attached to an account with an unpaid balance.
If it is not compatible with your current plan, you will have to change your plan when you activate it. If you're on an older, grandfathered calling plan, you may have to change to one of the current plans for instance.