Diplomates’ ABA ID numbers are eight digits that begin with the number three (for example, 3555-5555). They are not the same number that is printed on diplomates’ certificates, nor is it their membership number with a specialty society. If you do not have a diplomate’s ABA ID, you will need to get it from the physician. Diplomates can locate their ID number by logging into their personal portal account on the ABA website at www.theABA.org or by calling the ABA’s Communications Center at (866) 999-7501 Monday through Friday from 8 a.m. to 5 p.m. ET.