Is Weight-Loss Surgery Right For You?

If diet and exercise haven’t been enough to achieve a healthy body weight, you might be a good candidate for weight-loss surgery. The AdventHealth Tampa Bariatric & Metabolic Institute, formerly the Florida Hospital Tampa Bariatric & Metabolic Institute, offers a comprehensive, patient-centered approach to weight loss by focusing on whole health and applying customized care for overall well-being.

Our state-of-the-art, minimally invasive weight-loss procedures include:

  • Gastric Sleeve Also known as sleeve gastrectomy, the stomach is reduced to 25% of its original size, resulting in a sleeve or tube-like structure. 
  • Gastric Bypass: The stomach is divided into a small upper pouch and a much larger lower "remnant" pouch, with the small intestine rearranged to connect both.
  • Revisional Surgery: The correction of a previous weight-loss procedure, typically Lap-Band removal, stoma reduction or stomach pouch reduction.

Ready to Feel Healthy Again?

The information on this website is not a substitute for examination, diagnosis, and medical care provided by a licensed and qualified health professional. Please consult your physician before undertaking any form of medical treatment and/or adopting any exercise program or dietary guidelines. If you think you may have a medical emergency, call your physician or 911 immediately. AdventHealth reserves the right to add, remove or edit content on this page at its sole discretion. Privacy Policy.

Have you been diagnosed
with heart failure?

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Fusce venenatis viverra leo ut ultricies. Praesent id ligula sed massa ullamcorper imperdiet eget eget tellus. Nullam in facilisis turpis.



Call (813) 615-7077 or ATTEND AN ONLINE SEMINAR

Start your journey to the new you today by taking our online seminar. 
Feel free to contact us if you have any questions.


A whole health solution centered around you.

Personalized Care 
for Weight-Loss

Big Changes - 

No Fees


Or Call (813) 615-7077

The journey to a new you starts with one of our seminars, where you’ll learn more about both our individual procedures and the overall process. For your convenience, we provide seminars both online and in person.

Attend a Seminar

Nationally accredited by the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program.


Or check our in-person seminar calendar for available dates.

We’re here to help you achieve whole health and will be with you every step of the way. After your seminar, we’ll arrange for you to follow up with a dietician, undergo a psychological evaluation and schedule a pre-operative consultation. 

Meet Dr. Dietrick


Lorem ipsum dolor sit amet, consectetur 

Do you meet the criteria for weight loss surgery?

Ready to Get Started?

Certified by the American Board of Surgery with expertise in weight-loss surgery, Dr. Dietrick has extensive knowledge using minimally invasive laparoscopic and robotic techniques. With nearly 30 years of experience, patient-centered care remains his primary focus. Dr. Dietrick works with a team of providers to apply a customized approach for improved well-being, emphasizing education, diet, nutrition, exercise and lifestyle changes. As a thought leader, Dr. Dietrick was integral in establishing the Surgical Weight Loss Institute (now Bariatric & Metabolic Institute) at AdventHealth Tampa in 2005. Serving as medical director of the program, the hospital obtained national Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) accreditation through the American College of Surgeons (ASC) and the American Society for Metabolic Surgeons (ASMBS).

John Dietrick, MD, FACS, Medical Director, 
Bariatric Surgeon

Dr. Murr is certified by the American Board of Surgery and specializes in bariatric surgery. For over 30 years, he has been dedicated to helping individuals regain their health by providing cutting edge treatment in a caring and nurturing environment. As a pioneer of bariatric surgery, Dr. Murr has served in leadership roles in many national scientific organizations. He maintains an active role in education and research and is the founder of the American Society for Metabolic and Bariatric Surgery (ASMBS) Florida State Chapter. Voted by his peers as the Top Bariatric Surgeon in Tampa, Dr. Murr is passionate about the local community he has lived in for the last 20 years.

Michel Murr, MD, FACS,  Bariatric Surgeon

Learn more about our highly experienced staff at the Bariatric & Metabolic Institute at AdventHealth Tampa and their role in your journey.

Meet Our Team

Certified by the American Board of Surgery, Dr. Gonzalvo specializes in adult and adolescent bariatric surgery. A native of Tampa, Dr. Gonzalvo is dedicated to improving the overall health of his Tampa Bay community. His passions include improving the health of those experiencing weight management difficulties, especially children. He is a highly experienced surgeon, specializing in minimally invasive laparoscopic and robot-assisted techniques. Along with a collaborative team of providers, he offers a comprehensive, interdisciplinary program and applies a customized approach for improved well-being to every patient.

John Paul Gonzalvo, DO, FACS, Bariatric Surgeon

John Dietrick, MD, Medical Director, 
Bariatric Program

Arthi Sanjeevi, MD, Endoscopy

Ricardo Prieto, MD, Endoscopy

Candie Rainey, RN, Bariatric Patient Coordinator

Attend a Seminar

Meet Dr. Dietrick

Florida Hospital Tampa is the first hospital in the state to offer this brand new technology. 
Learn more about how this small device can enable big weight loss.

Nationally accredited by the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program.

Do You Meet the Criteria for Weight-Loss Surgery?

Candidates for surgical weight-loss procedures must meet the following criteria:

  • Body mass index (BMI) more than 40
  • BMI of more than 30 with other obesity-related conditions (diabetes, heart disease, sleep apnea)
  • Male patients who are more than 100 pounds over their ideal body weight
  • Female patients who are more than 80 pounds over their ideal body weight

Ready to Get Started?


Or Call 813-615-7077

Thank You

Thank you for taking the next step with AdventHealth. Our Care Coordinators have received your request and will reply to your appointment request within 48 hours.

Request An Appointment

Thank you for taking the next step with AdventHealth. Please enter your contact information below. Our Care Coordinators are standing by and will reply to your appointment request within 48 hours.

By submitting this form, I agree to receive communications from AdventHealth.

If you are having a medical emergency, please call 911.

There were errors with your submission.

Meet Dr. Gonzalvo

Meet Dr. Murr

Meet Dr. Gonzalvo

Meet Dr. Murr

couple embracing