HealthMark Rehabilitation. is an. inhouse. therapy company, serving the Skilled Nursing Facility patients and residents of. HMG. facilities. We’re currently seeking a. PRN & Full-time Occupational Therapist. to treat residents and short-term patients at our. Stallings Court (Full-time will split with our sister facility Willowbrook). facility in. Nacogdoches, Texas. Responsibilities. Provides therapy services in accordance with physician’s orders...