Ark. Code Ann. § 16-114-210

When a medical care provider is a codefendant with a medical care facility in an action for medical injury, and the only reason for naming the facility as a defendant is that the defendant medical care provider practices in the facility, the plaintiff shall have the burden of proving that the defendant medical care provider is the employee of the facility before the facility may be held liable for the medical care provider's negligence, if any is proven.