PPOs and Your Practice: 10 Things You Need to Know
Bill Rossi, President of Advanced Practice Management
Card Security Code
The card verification value is an important security feature for credit card transactions on the internet.
MasterCard, Visa and Discover credit cards have a 3 digit code printed on the back of the card while American Express cards have a 4 digit code printed on the front side of the card above the card number.
Visa, MasterCard & Discover
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