Great Oaks Family Practice
15930 S. Great Oaks Dr., Suite A200
Round Rock, TX 78681
512-246-3338 phone
512-246-3368 fax


Welcome to Great Oaks Family Practice. It is our mission to provide you with the very best medical care and a superior level of personal attention. Dr. Diaz and his dedicated staff strive to make every patient encounter a comfortable, positive experience. We are accepting new patients on most major insurance policies (we do not, however, accept Medicare or Medicaid). We also have a program for our uninsured patients, offering a discount on office visits and lab work. Thank you for taking the time to browse our website and feel free to contact our office.

Great Oaks Family Practice Specializes In:

  • Primary Care

  • Women' Health Care

  • Preventive Care

  • Physical Exams

  • Disease Management & Education

  • Sports Injuries

  • Acute Illnesses & Injuries


Office Hours

Monday - Friday 8:00 am - 5:00 pm

closed from noon - 1:30 pm for lunch