To register for the PhilHealth indigent program, you typically need to visit your local government unit (LGU) where they can assist you with the registration process. You'll likely need to provide documents proving your low-income status, such as a certificate of indigency. It's important to check with your LGU for specific requirements and procedures, as they can vary by location. For more detailed information, you may also visit the official PhilHealth website or contact their customer service for guidance.