I would call to be sure but I know people have used mail from social security with the number on it and it worked.
Hello Lonnell - Thank you for your interest in donating plasma. For your first visit, you should expect the entire process to last 2-3 hours. Your visit will include a physical examination and donation. To help speed up your donation, drink plenty of water, eat a healthy meal, and get plenty of sleep prior to your visit. Please bring with you a valid photo ID, proof of permanent residence and Social Security card. For more information please visit: https://www.grifolsplasma.com/en/web/plasma/plasma-donor/how-to-donate/how-to-donate or contact us at 1-855-697-5276 or through the "contact us" page on www.grifolsplasma.com.
Always call first to make sure.
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