$500 + $500 referral offer at ClubMD.biz. Refer another health professional to Club MD for health supply savings. When they open a new account and spend $4,000, we credit each of you with $500 in your account. Tell other health professionals to visit ClubMD.biz to save on their medical products, and to reference your name when they set up their new account. You can also tell us their name and contact information and we will reach out to them about opening a new account. You receive a notification when they sign up and when they reach the $4,000 threshold for your account credit. Refer someone today for your $500 account credit.