Over 40 Years of Providing Cancer Treatment

At South Texas Oncology and Hematology, we provide leading-edge cancer treatment backed by a deep commitment to advancing toward a new era in cancer care. Our team strives to offer each patient a comprehensive treatment plan that includes multi-specialty services, genetic profiling of tumors, targeted therapies, state-of-the-art treatment technology, and easy access to clinical research options.

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Why Choose US


At South Texas Oncology and Hematology, our mission is to provide leading-edge, compassionate cancer treatment backed by a deep commitment to advancing towards a new era in....

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Our Providers


Our surgeons, medical oncologists, radiation oncologists, and gynecologic surgical oncologists have the combined knowledge, skill...

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Our History


STOH was founded in 1985 by Dr. Lon Smith and Dr. Steven Kalter. Their mission was to provide high-quality research, treatment...

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Over 35 Years of Providing Cancer Treatment

We provide leading-edge cancer treatment backed by a deep commitment to advancing toward a new era in cancer care. Our team strives to offer each patient a comprehensive treatment plan that includes multi-specialty services, genetic profiling of tumors, targeted therapies, state-of-the-art treatment technology, and easy access to clinical research options.

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UV Safety & Skin Cancer Awareness


With summer temperatures rising, it's important to take action to protect your skin! Dr. Alexander Miller, a surgical oncologist at the START Center, shares some information on melanoma and tips to help prevent the development of skin cancers this summer.





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At START, we conduct clinical research to discover novel anti-cancer agents. With over 28 approved oncology drugs, START is a leader in global cancer research.

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Our offices provide a variety of advanced cancer treatment services with continually advancing sophistication and effectiveness.

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STOH has various locations across South Texas. We are ready to help treat you or a loved one's cancer with the compassion they deserve.

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Your Care Team

The doctors in our practice have some of the most advanced oncology expertise in the world. They are here to guide you through your cancer treatment and provide you with exceptional care. We often hear from patients that being treated by one of our physicians is a personal and compassionate experience.

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