Ways to Give to the PKD Foundation If you or someone you love has been touched by PKD, please consider making the PKD Foundation your charity of choice. Remember, every donation makes a difference. No matter the size or type of the gift, we can’t fulfill our mission to end PKD without you. The PKD Foundation is a 501(c)(3), 509(a)(1) public charity. Our tax ID number is 43-1266906. Your contribution is tax-deductible to the extent provided by law. Thank you for your support!