Question

When an insurance company uses the patient's Social Security number as the patient's insurance identification number, Block 1a of the CMS-1500 claim should be:

a) Left blank
b) Filled with the patient's name
c) Filled with the provider's name
d) Filled with the patient's date of birth

Answer 1

Block 1a of the CMS-1500 claim should be left blank.

Step-by-step explanation:

When an insurance company uses the patient's Social Security number as the patient's insurance identification number, Block 1a of the CMS-1500 claim should be left blank. Block 1a is specifically designated for the patient's name, so it should not be filled with the Social Security number. The patient's Social Security number should be provided in the appropriate section of the claim form.