Meet The Caring And Devoted Endobariatric Team.

The Surgeons, The Nurses, The Assistants And The Administration Staff.
All Dedicated to Helping You Meet Your Weight Loss Goals.

Our Staff

Dr. Alvarez has teamed up with a amazing staff of doctors throughout the years to offer you the best possible outcome and well-being. The staff that you will see during your stay has been carefully selected, all bilingual and with great work ethics and passion toward what they do.




Guillermo Alvarez, M.D.

Chief Bariatric Surgeon

Author, speaker, cyclist and bariatric surgeon. Dr. Alvarez has been one of the few world wide designated Surgeon of Excellence by the SRC. Also named Top Bariatric Surgeon by Newsweek Magazine and featured on ABC News. With 13,000 gastric sleeve surgeries performed and over a decade of time dedicated to this single procedure he has earned worldwide recognition.
Check Dr. Alvarez complete bio Here

Ulises Salinas, M.D.


Anesthesiologist that specializes in intensive care with 25 years of experience and special training in difficult airway intubation, he has been recognized with awards by his peers and licensing board for his dedication and skill in the field of anesthesiology, he joined Team Endobariatric nine years ago and has been in charge of the care of thousands of patients in the Operation Room along with Dr. Alvarez

Gabriel Rosales, M.D.

Bariatric Surgeon

Dr. Rosales attended the Medical School University of Monterrey, graduating cum laude going on to earn the coveted Chief Resident position during residency. Joining Team Endobariatric and Dr. Alvarez in 2008 as a surgical assistant, he has been side-by-side with Dr. Alvarez on over 6,000 gastric sleeve surgeries.

Alberto Garza, M.D.

General Physician

Earned his medical credentials from the University of Monterrey. He received high honors for his academic achievement. As a former gastric sleeve patient of Dr. Alvarez, Dr. Garza decided to join Endobariatric 4 years ago after observing his outcome and the world-class team Dr. Alvarez had assembled throughout the years.

Cristobal Garza, M.D.

Board Certified General Surgeon

Worked with Dr. Alvarez from 2010 - 2012, then left to do his General Surgery residency which he finished in ealry 2016. Dr. Garza is back as a certified surgeon and is a huge asset in the Operating Room.

Patient Assistance

Susan George, LVN

Patient Coordinator

Bariatric Nurse for over a decade, Susan met Dr. Alvarez early in his career, and was impressed with both his skill and compassion. She joined his practice soon afterward. She has first-hand knowledge of her patients’ journey, thanks to her own gastric sleeve surgery by Dr. Alvarez.

Anali Venegas, RN

Hotel Assistance

Anali is a bilingual nurse that has been working side by side with Dr. Alvarez's patients since 2011. Having had gastric sleeve surgery with Dr. Alvarez truly brings extra knowledge and wisdom in helping out patients who are starting with this journey.

Jessica Mongarro, RN

Hotel Assistance

Jessica is one of the top-reviewed nurses Dr. Alvarez has but amazing bedside manners and going the extra mile for you. Also fully bilingual she is in charge of the afternoon-evening shift seeing your needs at the hotel.

Estela Rodriguez

Hospital Assistance

One of the newest additions to our team, Estela is a fully bilingual nurse that is recoginzed by her attentive manners and always greeting you with a big smile. She will be taking care or your needs at the hospital.

Karen Flores

Hospital Assistance

Bilingual registered nurse, Karen is warm and caring that will be overseeing your needs at the hospital during the morning shift. She will be one of the first faces you will see arriving to the hospital.

Michelle Molina, RN

Hospital Assistance

Michelle is a bilingual nurse that will be looking over the needs you or your family member should have while your stay at the hospital. Warm and caring you will be feeling at ease with her bedside manners.

Nallely Garcia

Hospital Assistance

Nallely is a registered nurse. She will be doing rounds and being of assistance during the afternoon and evening shifts at the hospital.

Rosy Flores


Rosy has been with Dr. Alvarez since day 1. She will be the first face you'll see if you will be traveling to our facilities. She has over 1 million miles transporting patients from San Antonio, TX. Funny, warm and very easy to get along with, you will be enjoying your ride with her.

Brandi Carter

Patient Assistance

Brandi is one of our patient assistants, with her you'll have one of the best experiences possible, Brandi knows a lot about the procedure because she was also operated by Dr. Alvarez and has been working with the Endobariatric team for a long time.

OR Nurses

Juanita Salcedo

Juanita has been the OR Nurse of Dr. Alvarez from the very beginning and nowadays she literally reads Dr. Alvarez's mind and knows with precision every step ahead in each surgery.

Rocio Gomez

Rocio graduated from the same hospital Dr. Alvarez did his General Surgery training so she carries the same philosophy. She has been working with Dr. Alvarez for over 8 years.

Emmanuel Jimenez

Emmanuel is a Registered Nurse that looks over the needs of the team in the OR.

Liliana De La Rosa

Nurse Anesthetist

Liliana is one of the newest addition to the OR Team. She is working along with Dr. Salinas watching over his needs and the patient's safety.

Administrative Personnel

Lourdes Carranza

Personal Assistant

Lourdes is Dr. Alvarez's Personal Assistant and manages his agenda and complete schedule.

Eliezer Martinez

Graphic Design & Marketing

The magician behind the computer handling Endobariatric's backend office and platform.

Thelma Herrera

Office Receptionist

Thelma is in charge of receiving all the patients that come to see Dr. Alvarez for office appointments.

Ricardo Avila


Marketing Assistant in the team, his specialty is social media and community management

Erika Martinez

Patient Nutriologist

Erika is in charge of following up with our patients and taking care of their diet, pre operation and post operation.

From our blog

Latest articles from our blog.
16 October

Gastric Sleeve Weight Loss Myths

After gastric sleeve in Mexico, patients are (rightly) focused on shedding pounds and getting healthy. But with the massive amount of sometimes-contradictory information out there, it can be easy to believe things that aren’t true. Below are a few of the most common myths about weight loss as they relate...

09 October

Can Gastric Sleeve Surgery Help with Food Addiction?

Many people who seek out gastric sleeve surgery are more than food lovers; they’re food addicts. And, having lived with this very real disorder for years, it’s understandable that patients wonder whether the procedure will have any effect on their ability to control their interactions with food. The short answer...

02 October

Can Gastric Sleeve Surgery Heal the Diseases that Are Killing You?

We spend a lot of time thinking and talking about the aesthetic changes that happen as a result of vertical sleeve gastrectomy. Feeling confident on the beach, wearing smaller clothing sizes—they’re all good things, and I certainly understand wanting to look fantastic. But what can get lost in appearance-related discussions...

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