Our Dallas Bariatric Surgeons

The Dallas Bariatric Surgeons at DFW Bariatric Institute is committed to providing compassionate treatment, excellent results, and comprehensive care. We are proud of what sets our practice apart from others in the Dallas, Fort Worth, and Frisco areas. Contact our bariatric surgery practice today to begin on a treatment path that will help you lose weight, gain self-esteem, and improve your overall health and well-being.

About Our Team

The surgeons and qualified medical staff at DFW Bariatric Institute are dedicated to helping people struggling with obesity. We specialize in state-of-the-art, minimally invasive weight loss procedures, and we value patient safety and satisfaction utmost.

Dallas Bariatric Surgeon | Robert Marvin, M.D.


Dr. Robert Marvin is a bariatric specialist and board-certified surgeon at DFW Bariatric Institute. Dr. Marvin graduated with honors from the University of Southern California, obtained his medical degree from McGill University, and successfully completed his medical residency at the University of Texas Health Science Center in San Antonio. He holds a certification in Surgical Critical Care from the University of Texas Houston and has additional training in laparoscopic bariatric procedures.

Dr. Marvin has dedicated his career to helping patients with obesity find effective surgical solutions that allow them to live healthier and happier lives. His work has been recognized by the American Society for Metabolic and Bariatric Surgery (ASMBS) and his clinical research has been published in several distinguished medical journals. Dr. Marvin is highly experienced in a full range of bariatric surgeries and non-surgical weight loss procedures. He has established himself as an expert in the non-surgical Endoscopic Sleeve Gastroplasty (ESG) procedure, and he often leads ESG learning sessions for fellow surgeons. Contact us to schedule an appointment with Dr. Marvin at one of our Dallas area offices.

How To Choose a Qualified Dallas Bariatric Surgeon

The entire team at DFW Bariatric Institute is committed to providing compassionate treatment, excellent results, and comprehensive care. We are proud of what sets our practice apart from others in the Dallas, Fort Worth and Frisco areas, and we’re honored that so many patients have chosen us to help them on their weight loss journey. We know that you have options when it comes to choosing a bariatric surgeon. If you are considering weight loss surgery, here are some things to keep in mind while you research bariatric surgeons.

Understand Your Options

When considering a bariatric surgeon, research what types of weight loss procedures they offer. Even if you have a specific surgery in mind, a surgeon who is experienced in a wide variety of procedures will be able to take into account your medical history and health goals to ensure that you get the treatment that is best for you. The DFW Bariatric Institute offers a complete range of options, including surgical weight loss, non-surgical weight loss, and medical weight loss.

Check Your Surgeon’s Qualifications

The credentials and experience of a bariatric surgeon are important factors in patient success.  Here are a few things to check before moving forward with a bariatric surgeon:

  • License – Confirm that your Dallas bariatric surgeon is currently licensed to practice medicine by the state.
  • Experience – Ask how many procedures the surgeon or practice has performed. At DFW Bariatric, we have performed over 8,000 procedures.
  • Board Certification – Choose a surgeon who has been certified by the American Board of Surgery.
  • ASMBS Membership – Is your surgeon a member of the American Society for Metabolic and Bariatric Surgery (ASMBS)? ASMBS Surgeons are committed to bariatric excellence and are leaders in the field of weight loss surgery. Most of the surgeons at DFW Bariatric are members of the ASMBS.

Get a Free Insurance Check

Once you’ve determined that bariatric surgery may be the right path for you, you’ll have several decisions to make regarding your treatment plan. Choosing your surgeon or planning for your procedure can be difficult if you are frustrated by a lack of clarity about what is or isn’t covered by your health insurance plan. Look for a bariatric practice that offers a free insurance check. At DFW Bariatric, our experienced staff will help you navigate insurance to understand your coverage.

One Appointment Can Change Your Life


If you’re seeking a Dallas bariatric surgeon, we would be happy to answer any questions you have about our board-certified ASMBS bariatric surgeons. Take the first step toward better health.

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Patient Testimonials


Janet S.

Lost 93 pounds*

"93 pounds later, I have a whole new life. I’ve gone from a size 24 down to 10-12. I no longer have high blood pressure or high cholesterol. My knees, which were in sad shape before surgery, don’t hurt anymore. I joined a gym and participate in water aerobics and a latin impact aerobics class. My whole life has changed. I have much more confidence in myself and love to be with people."

Vivian P.

Lost 140 pounds*

“First off….this surgery will give you your life back. It is a total life changing surgery and I feel like I owe DFW Bariatric my life since they restored mine to me. My weight ballooned up to 273 lbs before my surgery. I have successfully lost and maintained a 140 lb weight loss… This is the most amazing journey that anyone could ever take and the DFW Bariatric Institute staff will all be there to hold your hand and lead you down the road to your success.”

Sherrie M.

Lost 110 pounds*

“I am currently 29 years old and weigh 130 lbs. Before surgery I weighed almost 240 lbs…This is the best thing I have done with my life and would do it again today. It changed my life drastically. My surgeon said to me, 'I can do 50% for you and give you the surgery, but the other 50% is up to you. Your eating, your exercise, your total outlook on life make up the other 50%. And what you want from the surgery is what you will get, and the life you will gain.'”

John E.

Lost 90 pounds*

“I went to a seminar and left there with complete ease, feeling like everyone cared about me and my health. On first office visit I was totally impressed…I never felt rushed in the office, and always felt everyone cared. My surgery was completed and I am now down 90 pounds…The biggest part of recovery comes from the encouragement DFW Bariatric gives. Everyone is always positive and takes the time to explain things in a positive way.”

Kathy D.

Lost 161 pounds*

“There are no words to express the amount of change that weight loss surgery has brought to my life. I am a 54 year old female. There were so many things I was unable to do before the surgery that I blamed on age. It wasn’t my age at all, it was the weight. I am 30 again…The day of my surgery, I weighed 299 pounds. Today I weigh 138 and wear a size 6…I feel so good about myself now. The surgery saved my life!”

Brian S.

Lost 130 pounds*

“After losing 130 pounds, I feel like I have a new lease on life. I was able to stop all of my diabetes, high blood pressure, and my cholesterol medicines. I have always had chronic knee problems and now I am able to run three miles per day without any pain. If I had a choice of doing this surgery again or not, I would definitely do it again. I feel that by having the surgery it not only gave me my life back but it also saved my life.”

Lorna Q.

Lost 107 pounds*

"I have lost the astonishing amount of 107 pounds in less than a year. I feel like I have my life back and I am in control again. All my family and friends are always telling me that I look happier than before and they are right, I am much, much happier than before. I have to thank DFW Bariatric and my husband for helping me throughout this very emotional and amazing journey. I do not regret at all having the surgery, it is one of the best decisions I have ever made in my life.”

Danielle L.

Lost 154 pounds*

“My outlook on life was so different before having my weight loss surgery. I was taking medicine for diabetes, high blood pressure, and depression, and my back, legs, and shoulders hurt all the time which kept me from sleeping. My start weight was 298 pounds. And I am now 144. I’m no longer on any type of medications. My body is the best shape I have ever been in. I am so happy to be where I am today mentally and physically. With my hard work and dedication and with the aid of DFW Bariatric, I am where I want to be. I trust this team with all my heart.”

Dennis H.

Lost 170 pounds*

“At 365 pounds, I was medicated for high blood pressure, diabetes, joint inflammation, and high cholesterol…I was a living example of morbid obesity. I knew then that it was time to do something with my weight…It was not easy to get through all of the hoops that my health plan demanded, but the DFW Bariatric team helped me every step of the way. Today I weigh 195 pounds and feel great! From the time I left the hospital after surgery I have been free from all prescription medications. I can never thank this team enough for giving me back my life."