North Texas Diabetes and Endocrinology of Flower Mound A Premier Health Partner 4101 Kirkpatrick Lane Flower Mound, TX 75028 CONTACT NUMBERS. Phone: (214) 513-2300 Fax: (214) 513-2333. OFFICE HOURS. Monday – Thursday: 8:30am – 4:30pm Friday: 8:00am – 1:30pm.