Yes, that is exactly the kind of situation the ombudsman program exists for. Contact the Area Agency on Aging of Tarrant County's ombudsman program at 817-258-8000, describe the situation, and a trained advocate -- often a volunteer -- will work with your family and the resident.
How this actually works
Ombudsman advocates are trained specifically to work inside long-term care facilities and understand both resident rights and the practical realities of how these buildings operate day to day. They can attend care plan meetings with you, help you understand what a facility is and isn't required to do, and advocate directly for changes when something isn't right. What they can't do is force a facility's hand the way a state regulatory action can -- for situations involving a suspected regulatory violation rather than a care-plan disagreement, HHSC's Complaint and Incident Intake line (1-800-458-9858) is the better first call, and the two channels can be used together.