Final answer:
A therapy Plan of Care for a Medicaid patient in Wisconsin does require a physician's co-signature to ensure medical necessity and compliance with healthcare regulations.
Step-by-step explanation:
The statement that the therapy Plan of Care (POC) for a patient on Medicaid in the state of Wisconsin must be co-signed by a physician is True. According to regulations, patients under Medicaid services often require a physician co-signature to verify and approve the therapy plan. This ensures that there is a collaborative approach between the healthcare providers and that the treatment being provided is medically necessary and meets the standards set by both the state and federal guidelines.