The Oral Cancer Foundation is a California nonprofit corporation organized under the IRS 501(c)3 rules for national nonprofit public charities, EIN: 33-0969026. All correspondence related to legal matters, contracts, etc. should reference that address. OCF at 3419 Via Lido #205, Newport Beach, CA 92663. Most of our correspondence accounts payable and receivable, donations and other normal business communications should go to our general mailing address.