Donation by Mail, Phone or Fax Consider adding the National MPS Society to your charitable contributions. We are a private, 501 (c)(3) charitable corporation so your gift is tax deductible under the IRS code. Our federal ID # is 11-2734849. Please send your contribution to: National MPS Society 4220 NC Hwy 55, Ste.140 Durham, NC 27713 Toll-free: 877.MPS.1001 Telephone: 919.806.0101 Fax: 919.806.2055 Ask your company if they have a matching gift program. It could double your support for the Society.