Contact Us 888.648.3390  |  Monday to Friday - 8am to 5pm | email | 214 N. 16th St. #120, McAllen, Texas 78501

We are South Texas Institutes of Health

The Board

South Texas Institutes of Health was established by Steven M. Stoltz MD, Lori Lizak RN CCRC, and Alonzo Cantu.


Steven M. Stoltz, MD- President of STxIH, Family medicine physician, hospitalist

Doctor Stoltz has a wide variety of interests as a family physician and a history of participation in and developing clinical research projects.


Alonzo Cantu- Vice President of STxIH, Developer and Businessman

Mr. Cantu grew up in the Rio Grande Valley area and is passionate about supporting efforts to improve the quality of life for South Texas and beyond.


Lori S. Lizak, RN, CCRC- Secretary of STxIH, Registered nurse, certified clinical research nurse

Ms. Lizak is a compassionate nurse with wide experience, but a special concentration in clinical research.


Contact us:

Phone 1.888.648.3390

Fax 1.888.648.3390