https://www.ssa.gov/forms/ha-4631.html You must complete each box on the form. You must disclose all medical providers and/or doctors who treated you during the relevant period of disability. If you don’t remember details, you can estimate some of the information, and other information you can do the best you can with it, but again you must complete every box. For example, if the box says, list the addresses and telephone numbers of the doctors, and you don’t remember the addresses, google the doctors’ names and see if their addresses come up. If you don’t remember the dates when you saw the doctor, estimate them. For example, you could say between approximately 2016 and 2018. One way to obtain good information concerning the names of doctors, is to contact your pharmacy for a complete list of medicines you were provided. You can also look in your medicine cabinet and read the names of the doctors printed on your medicine bottles. That list will have the names of the doctors and the dates of the prescriptions, which will help refresh your memory. The Social Security laws now require that you disclose every doctor who treated you during your relevant period of disability. Under no circumstances can you not disclose the names of doctors who evaluated or treated you.