Check your policy, if you have one. The policy number should be listed on the declaration page, which is the first page of your policy. The declaration page has the name of the insured, a summary of benefits, the dates of coverage and your policy number.
Look on your insurance card, if you can find it. The policy number may be located on the front or back.
Look for any paperwork or other communication from the insurance company. Your insurance number should be on any letters, bills or other communication. If you purchased the product online, check your email for a receipt.
Call the company who sold you the policy. They should be able to locate the policy number with the insured's Social Security number (SSN).