Hi,
I have not billed to Medi-Cal Before. Is that the California Medicaid? If Medicare is prime, you definitely need to file with them first. After you receive the eob you would file the Medi-Cal. Our NY Medicaid requires special forms to be completed. When they are 2ndary you indicate the primary payment right on the form and you do not attach a copy of the EOB.
Good Luck
Michele