About Dr. Garza

Dr. Hillery will be retiring at the end of 2023, after 38 years of practice in the Richmond/Rosenberg, Katy, and greater Houston area. He has enjoyed working in this community and with his hospital colleagues throughout these years. Dr. Hillery is thankful for the trust and confidence of the many patients he has had the pleasure to serve over the past three decades. Dr. Hillery joined Southwest Surgical Associates in 1994, with four other surgeons. Dr. Hillery has enjoyed the experience of working with many excellent colleagues through the years as Southwest Surgical Associates has grown.
In retirement Dr. Hillery is looking forward to spending more time with his growing group of grandchildren.
Dr. Garza
About Dr. Garza

Amanda Garza, MD, is a board-certified general and breast surgeon at Southwest Surgical Associates, serving the community in Sugar Land, Cypress, Pearland, and Katy, Texas, and throughout the greater Houston area. 

A Texas native, Dr. Garza was born in the city of Mission in the Rio Grande Valley area. After her grandmother passed away from breast cancer, she dedicated herself to her studies to become a doctor to help families in similar circumstances. 

Dr. Garza holds a Bachelor of Science and Doctor of Medicine. She specializes in general laparoscopic procedures and diseases of the breast.

Dr. Garza is an expert in treating gallbladder disease, appendicitis, hemorrhoids, skin lesions, masses, and cysts. She truly enjoys performing laparoscopic Nissen procedures for gastroesophageal reflux disease (GERD) and spleen and thyroid procedures.

When not working, Dr. Garza enjoys reading mystery and crime novels, playing with her dogs, and spending time with friends and family.


  • General Laparoscopic Procedures and Diseases of the Breast
  • Doctor of Medicine
  • Bachelor of Science
Areas of Expertise
  • Breast Disease/Cancer
  • Appendicitis
  • Gallbladder Disease
  • Colon Disease/Cancer
  • Hemorrhoids
  • Hernia Repair
  • Reflux Surgery
  • Thyroid/Parathyroid Disease/Cancer
  • Skin Lesions/Masses/Cysts
  • English
  • Spanish