Cancer Center

Appointments: (936) 777-6550

Ather A. Siddiqi, MD



Dr. Ather A. Siddiqi is a member of ASTRO, BCMS, and TMA.  He attended medical school at the University of Texas Health Science Center in San Antonio; he completed his internal medicine residency at University of Texas Medical Branch in Galveston in 2001.  He then returned to the University of Texas Health Science Center in San Antonio to complete his residency for radiation oncology in 2006.  Dr. Siddiqi is distinguished as one of a small number of doctors who are dual board certified.  Dr. Siddiqi’s comprehensive background as both a radiation oncologist and an internist enables him to provide the highest quality patient care.

Dr. Siddiqi’s main areas of focus are head and neck, lung, breast and prostate cancers.  He provides consultation for patients drawing from a wide range of radiotherapy techniques to produce the best individualized plan for each patient including:  intensity modulated radiation therapy (IMRT),  image guidance radiotherapy (IGRT),  stereotactic radiosurgery, stereotactic body radiation therapy and radiopharmaceuticals to include Zevelin, Quadramet, and  I-131 radioactive iodine ablations for thyroid disease.  Dr. Siddiqi believes in multidisciplinary management and a unified, team-oriented approach to patient care.

Languages spoken:  English, Spanish and Urdu.