Dr. Medrano

Specialties:

Weight loss surgery

Obesity medicine

General surgery

Guillermo Medrano MD

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Transforming Lives with Precision, Care, and Expertise.

Weight loss with medications

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Successful Surgeries
1000 +

Enjoy 10% OFF Bariatric Vitamins & Supplements when purchased through our website!

Dr. Medrano- Best Bariatric Surgeon in San Antonio, TX

Are you struggling with obesity? Let Dr. Medrano Bariatrics in San Antonio, Texas, help you overcome physical and emotional barriers with expert care from board-certified bariatric surgeons.

Dr. Medrano Bio

Dr. Medrano’s journey in medicine began at a young age, inspired by his surgeon uncles. He graduated from Tec de Monterrey in 2014 and earned a two-year fellowship at Baylor College of Medicine and Houston Methodist Hospital in Houston, TX.

In 2016, he was the ONLY foreign medical graduate—out of more than 200 applicants—to secure a general surgery residency in the United States.

After his residency, Dr. Medrano completed a bariatric surgery fellowship at Abington-Jefferson Health Hospital in Pennsylvania. There, he learned advanced weight loss procedures, including the duodenal switch, and trained in robotic-assisted surgery.

Now practicing in San Antonio, Texas, Dr. Medrano is a trusted robotic surgery expert specializing in minimally invasive and robotic surgery.

As one of the best robotic surgeons in San Antonio, Texas, he is dedicated to improving patients’ health through advanced surgical techniques. 

Dr. Medrano is Board Certified In

Weight Loss Surgery

Obesity medicine

General Surgery

Weight Loss and General Surgery Information and Risks

Weight loss and general surgery encompass a wide variety of procedures, each individual surgery poses specific risks and complications. Potential risks of any type of surgery include adverse reactions to anesthesia, bleeding, post-surgical infections, poor wound healing, and blood clots, recurrence of original disease process, hernia and cosmetic defects. Certain procedures may carry additional risks, which your surgeon will discuss with you beforehand.

Our Professional Services.

Dr. Medrano speaks Spanish and is ready to assist Spanish-speaking patients.

Contact Details


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Why Choose Us for Weight Loss Bariatric Surgery in San Antonio, TX?

State of the art Expertise in Bariatric Surgery

Comprehensive Care Before and After Surgery

Personalized Plans for Lasting Weight Loss Success

24/7 Support for Your Health and Well-Being

Trusted Expertise, Proven Results

Changing Lives, One Patient at a Time

Bariatric Surgery Life-Changing Results

Antonio O. Alvarez.

Before

After

What was your experience with Dr. Guillermo Medrano? 

My experience with Dr. Medrano was one of a friend, not a patient because that is how he made me feel.  You do not find this with many other doctors, but I did with him. Before I met with Dr. Medrano, I we...

Joselin Arias

Before

After

What was your experience with Dr. Guillermo Medrano? 

En Noviembre de 2023 me hice la manga gástrica (Gastric sleeve) en Ciudad Juárez ya que yo vivo en El Paso Tx, el bariatra que me opero me dijo que mi cirugía había salido muy bien, a menos ...

Ana Lilia Cantu

Before

After

What was your experience with Dr. Guillermo Medrano?

As Dr Medrano’s patient for over 2 years, my journey has encompassed minimal chances of survival to having regained my health and vigor. I met Dr Medrano in October of 2022 just moments before pre...

Lourdes Wallace

What was your experience with Dr. Guillermo Medrano?

I've been trying to lose weight for over 10 years. I've tried multiple programs, diet plans, medications, workout regimens, and different self-help books to no avail. I was uncomfortable in my own skin.  

Antonio O. Alvarez.

Before

After

What was your experience with Dr. Guillermo Medrano? 

My experience with Dr. Medrano was one of a friend, not a patient because that is how he made me feel.  You do not find this with many other doctors, but I did with him. Before I met with Dr. Medrano, I weighted 370lbs....

Joselin Arias

Before

After

What was your experience with Dr. Guillermo Medrano? 

En Noviembre de 2023 me hice la manga gástrica (Gastric sleeve) en Ciudad Juárez ya que yo vivo en El Paso Tx, el bariatra que me opero me dijo que mi cirugía había salido muy bien, a menos de la semana de la operación mi...

Ana Lilia Cantu

Before

After

What was your experience with Dr. Guillermo Medrano?

As Dr Medrano’s patient for over 2 years, my journey has encompassed minimal chances of survival to having regained my health and vigor. I met Dr Medrano in October of 2022 just moments before pre-op. I was...

Lourdes Wallace

Before

After

What was your experience with Dr. Guillermo Medrano?

I've been trying to lose weight for over 10 years. I've tried multiple programs, diet plans, medications, workout regimens, and different self-help books to no avail. I was uncomfortable in my own skin.  As a health...

Ana Lilia Cantu

Before

After

What was your experience with Dr. Guillermo Medrano?

As Dr Medrano’s patient for over 2 years, my journey has encompassed minimal chances of survival to having regained my health and vigor. I met Dr Medrano in October of 2022 just moments before pre-op. I was...

Lourdes Wallace

What was your experience with Dr. Guillermo Medrano?

I've been trying to lose weight for over 10 years. I've tried multiple programs, diet plans, medications, workout regimens, and different self-help books to no avail. I was uncomfortable in my own skin.  As a health...

Frequently Asked Questions (FAQ’s)

The cost of gastric sleeve surgery depends on various factors like location, hospital fees, and insurance coverage. In Texas, on average, it costs from $9,000 to $20,000.

The candidate who has a BMI of 30 or higher with obesity-related health conditions like diabetes or high blood pressure.  And if you are struggling to lose weight through diet, exercise, and/or medications.

The insurance providers like Medicare, Medicaid, Blue Cross Blue Shield, Aetna, Cigna, and UnitedHealthcare cover bariatric surgery. Policy plans vary from insurance company as well as coverage

From our expert bariatric surgeons, it’s highly recommended to avoid alcohol, especially in the first year after surgery. 

The cost of weight loss surgery depends on the surgery. We recommend that you consult first with our robotic surgery experts for a better understanding. 

Robotic-assisted surgery is a minimally invasive approach using advanced robotic technologies for faster recovery in surgeries. 

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