After attending Baylor College of Medicine for medical school, she completed her residency training at a hospital affiliated with the University of Texas Southwestern Medical Center at Dallas. Areas of particular interest for Dr. Armstead include kidney stones, hypertension (high blood pressure), and renal (kidney) biopsy. Dr. Armstead is an in-network provider for Amerigroup, Blue Cross/Blue Shield, and HealthSmart, in addition to other insurance carriers. She is affiliated with Memorial Hermann Southwest Hospital, Houston Methodist, and Memorial Hermann Cypress Hospital. Dr. Armstead has an open panel.