Comparison of all Three Plans 
for 2014
The 2015 chart is not available, the only difference is the cost.
Which you can get from the pdfs below this chart.
Example the EPO/HMO is $990 a year under age 65, age 65 and over is $495 a year.

Verizon MEP Health Care PPO Option

Verizon National EPO/HMO  NYNE Option

Verizon HCN