Hormone Doctor Serving Celina, TX

Celina anchors the northern edge of Collin County, above Prosper on the Preston Road and Dallas North Tollway corridor. Whether you are near the downtown square or in the newer neighborhoods spreading west toward the Tollway, The Riegel Center at 4975 Preston Park Blvd in West Plano is a straight shot south — roughly 25 miles, generally 35 to 45 minutes depending on the hour. Parking at the office is free.

Fast-growing towns get retail, restaurants, and primary care long before they get sub-specialty medicine, and hormonal medicine is about as sub-specialty as it gets. That gap is the practical problem for Celina residents: the nearest option is often a family practice fitting hormones in around everything else it treats, or a wellness storefront offering them alongside IV drips and aesthetics. Neither is built to manage an endocrine problem over years.

The consequence shows up as a sentence patients repeat almost verbatim: my labs came back normal. Usually they did — against a reference range built from a broad population that includes plenty of people who feel terrible. Two testing habits do most of the damage. Thyroid gets screened with TSH alone, which is a pituitary signal rather than a measure of how much active hormone reaches your cells, so impaired T4-to-T3 conversion and early autoimmune disease both go unseen. And testosterone gets drawn whenever the appointment happened to be, as a total value only — but testosterone peaks in the early morning and falls through the day, and the free fraction is what tissue actually uses. A convenient afternoon draw read against a wide range is how treatable deficiency gets called fine.

Christopher J. Riegel, M.D., orders the panel that answers the question instead. Sex hormones, a complete thyroid workup including free T4, free T3, reverse T3 and antibodies, cortisol, DHEA-S, and the binding proteins that determine how much of any hormone is biologically available — read against optimal ranges and against your symptoms rather than against the reference range alone. He is a board-certified OB/GYN who spent four years in hormone research at UT Southwestern, has practiced hormone medicine for more than thirty years, and treats confirmed deficiency with bioidentical hormones drawn from roughly forty proprietary formulations of his own development.

There is no threshold you have to cross before this is worth doing. Women often assume hormone therapy begins at menopause, when in fact perimenopause can run for years beforehand and progesterone is typically the first hormone to fall — which is why sleep, mood, and cycle changes so often arrive while periods are still regular. Men frequently wait for something dramatic, when the useful moment is earlier: when training stops producing results, when focus and drive have measurably changed, when the explanation has quietly become age.

From 35 to 45 minutes out, the logistics are straightforward. Most Celina patients come in once for the initial consultation and physical evaluation, then move follow-up care to telehealth — blood drawn at a Quest, Labcorp, or local draw site near Celina, results reviewed with Dr. Riegel by video, and compounded prescriptions shipped to the house. Follow-up testing and dose adjustment run every three to six months, and that cadence is the part that determines whether treatment actually works.

We also see patients from the communities around Celina — Prosper, Gunter, Weston, Anna, Melissa, Aubrey, Pilot Point, and north Frisco. Wherever you start from, the sequence is the same: a consultation, a comprehensive hormone panel, and a direct explanation of what your results mean and what can be done about them.