Board Certifications

  • Colon Rectal Surgery
  • General Surgery



Ochsner Clinic Foundation
Colon Rectal Surgery
Jefferson, LA


Henry Ford Hospital
Colon Rectal Surgery
Detroit, MI


Texas Tech University Health Sciences Center
General Surgery
Lubbock, TX

Medical School

University of Texas Southwestern Medical School
Doctor of Medicine
Dallas, TX

Professional Association

American College of Surgeons, Fellow


“Impact of hypercalcemia and parathyroid hormone level on the sensitivity of preoperative sestamibi scanning for primary hyperparathyroidism.” The American Journal of Surgery (2003): Parikshak, M., Castillo, E.D., Conrad, M.F., Talpos, G.B.

“Postoperative surveillance of differentiated thyroid carcinoma: a selective approach.” The American Journal of Surgery (2003): Conrad, M.F., Pandurangi, K.K., Parikshak, M., Castillo, E.D., Talpos, G.B.


Dr. Castillo is passionate about Colon Rectal Surgery and working closely with his patients across the Fort Worth-area to help them achieve their optimal health. Dr. Castillo went to the University of Texas Southwestern Medical School in Dallas, TX, and completed his post-doctoral residency training at Henry Ford Hospital in Detroit, MI.


Diagnostic and Screening Colonoscopy
Investigation of Rectal Bleeding
Laparoscopic (minimally invasive) Colon and Rectal Surgery
Surgery for Cancer of the Colon and Rectum, including Sphincter-Sparing (colostomy-avoiding) Surgery, if possible.
Surgical and Non-Surgical Treatment of Hemorrhoids
Surgical Treatment of Inflammatory Bowel Disease (Crohn’s Disease and Ulcerative Colitis)
Treatment of Anorectal Abscesses, Fissures, Fistulae, Skin Conditions of the Perianal Region, and Rectal Prolapse.
Treatment of Colorectal Disease
Treatment of Diverticulitis