South Texas Health System Clinics

04/10/2026

A wonderful afternoon celebrating impactful women in our community.

Our general surgeon, Dr. Sandra Esquivel, was honored as a Legendary McAllen Woman during a special luncheon hosted by the McAllen Chamber of Commerce. She was recognized alongside other incredible women who continue to make a meaningful difference in our community.

We are proud to see her dedication and impact celebrated. Congratulations on this well-deserved honor, Dr. Esquivel!

04/07/2026

April is Stress Awareness Month: Small moments of care can make a big difference. Let’s use this month as a reminder to prioritize our health, support one another and build habits that help us feel more balanced and resilient.

💚 Your well‑being matters—today and every day.

03/31/2026

We celebrated National Doctors' Day yesterday! 🩺

We're proud to recognize and thank our incredible physicians for their dedication, compassion and commitment to delivering exceptional care to our community. Your hard work does not go unnoticed, and we are grateful for all that you do each and every day

03/30/2026

Today, we celebrate our incredible physicians on National Doctors’ Day! Thank you for your compassion, expertise and dedication to caring for our patients and community—today and every day. 🩺💙

Happy Doctors’ Day!

03/25/2026

We are excited to welcome Jennifer Perales, APRN to South Texas Health System Clinics!

With over seven years of experience in plastic trauma and gastroenterology, Jennifer brings a diverse clinical background and a strong commitment to patient-centered care. As a double-board certified nurse practitioner, she is dedicated to providing high-quality, compassionate care to every patient she serves.

Jennifer will be seeing patients at our Trenton Family Medicine Clinic. Help us give her a warm welcome!

03/17/2026

Feeling extra lucky with our team!🍀

Our STHS Clinics staff showed up in green to celebrate Saint Patrick's Day.

03/11/2026

We are thrilled to welcome Dr. Ameer E. Hassan to South Texas Health System Clinics.

Dr. Hassan is a triple board-certified neurologist specializing in stroke, neurocritical care and endovascular surgical neuroradiology.

He completed his medical training at the University of Medicine and Dentistry of New Jersey and University Hospital in Newark, followed by advanced fellowships at the University of Minnesota. Dr. Hassan has earned a national reputation for his work in:

Stroke research
Artificial intelligence and advanced imaging
Antiplatelet therapy
Aneurysm and AVM treatment
Intracranial stenting

Please join us in welcoming Dr. Hassan. We are excited to have such a distinguished leader advancing neurological care in our community.

For more information, please call (956) 630-7788 or visit https://bit.ly/47GLwO6.

Primary and Specialty Healthcare Services See Our Services Find A Doctor Contact Us Patient Portal Pay Your Bill South Texas Health System Clinics Providers with South Texas Health System Clinics deliver high quality family medicine, health

03/10/2026

Transforming Surgical Care with Precision & Purpose: Across operating rooms in the Rio Grande Valley, two South Texas Health System surgeons are helping shape the future of medicine while redefining what leadership in surgery looks like. Dr. Sandra Esquivel and Dr. Krystha Cantu represent different generations, yet they share a commitment to precision, innovation and compassionate patient care.

In observance of Women’s History Month, Mega Doctor News interviewed Dr. Cantu and Dr. Esquivel for a cover story regarding their careers in general surgery and advancing robotic care in the Valley.

Dr. Esquivel has spent more than 30 years in surgery, building a career centered on patient care while helping introduce robotic technology at STHS Edinburg.

As a woman in a field where gender disparities remain, Dr. Cantu chose general surgery for its broad scope, which includes both emergency and elective procedures. Robotic surgery, she said, appealed to her because of its potential to improve precision and reduce invasiveness.

A special thank you to Dr. Esquivel and Dr. Cantu for their relentless dedication to delivering best practice expertise that truly sets the standard for exceptional surgical care.

Read the full story at https://bit.ly/3PsWLU2.

03/07/2026

⏰ Don’t forget! Daylight saving time begins this weekend. Set your clocks forward one hour and enjoy a little extra evening sunshine. ☀️

03/05/2026

Proud to see our team out supporting a great cause at the South Texas Health System Heart Heroes for Heart 5K. ❤️

Our staff showed up bright and early, representing STHS Clinics and standing together to raise awareness about heart health in our community.

03/02/2026

Meet Our Team Monday! Today, we’re proud to highlight Olga Gonzalez, our lead medical office specialist at our Pediatric Nephrology Clinic.

Olga has been an essential part of the team for more than 10 years, working closely with Dr. Siddique to support our patients and families with compassion and expertise. Thank you, Olga, for all that you do!

02/27/2026

Our cardiologists, Dr. Castro and Dr. Posada, hit the airwaves this Heart Month, sharing expert insights on prevention, heart‑healthy habits and the importance of early detection.

Proud to help our community take charge of their heart health. ❤️