The quickest way to apply for a grant is through our patient, provider, or pharmacy portal. To apply by mail or fax, complete this form and send the application to:. PAN Foundation P.O. Box 30500 Bethesda, MD 20824 Fax: 1-866-316-7261 If you have questions about your application that are not answered in our FAQs, call us at 1-866-316-7263 from Monday through Friday, 9 a.m. to 7 p.m. ET..