Greenphire is a reloadable card available to research studies as a payment option for study participants (individuals only) beginning Fall 2019. The card offers a faster and safer method of paying study participants and will provide an excellent alternative to checks, gift cards and petty cash. Accounts Payable is the administrator of this program and is available to answer any questions or comments your department may have about this program. Contact Accounts Payable via email at or telephone at (252) 737-5907.