The most reliable way to get a current answer on this is to call the facility directly at 972-441-6160. Visitation policies, particularly following the COVID-related restrictions that affected facilities nationwide, have been in flux and what was true a few months ago may not reflect current policy. Staff at the facility can tell you exactly what the current visitation format is, whether in-person contact visits are available, what the schedule looks like, and what you need to do to get on the approved visitor list if you are not already.
Judge John Creuzot Judicial Treatment Center is a treatment-focused facility in Lancaster, Texas, which means its programming schedule can also affect when visitation is permitted. Treatment facilities sometimes structure visitation around program requirements in ways that differ from standard jail or prison visiting schedules.
When you call, ask specifically whether visits are contact or non-contact, what days and hours are available, whether you need to schedule in advance or walk in, and what identification you need to bring. Getting all of that information in one call saves you from showing up unprepared or on the wrong day.
In the meantime, letters and photos through InmateAid are a reliable way to stay connected while you sort out the visitation situation. Your personal address stays off the envelope and your person has something tangible in hand within about a week.