From Consumer Wiki
The Social Security Administration can provide information on an individual's Social Security files and give that person an estimate of Social Security earnings and benefits.<p>
<p>To verify that Social Security earnings are being properly recorded, consumers may call the nearest office of the Social Security Administration (U.S. Department of Health and Human Services) and request a "statement of earnings" postcard (form OAR-7004). Mail the post card to the following address:<p> Social Security Administration
6401 Security Boulevard Baltimore, Maryland 21235 (410) 965-3970 (800) 772-1213 Fraud:
<p>If someone is using another person's Social Security number, report this to the Internal Revenue Service (IRS) or to the Social Security Administration. It is no problem for a consumer to receive a duplicate of the card that was lost; however, if an individual's SS# is fraudulently being used by another person, being issued a totally new SS# is a complex process and requires a court hearing to establish identity and permit issuance of a new card.
Social Security Administration
8351 Folsom Boulevard
Sacramento, CA 95826