While Arizona is home to dozens of licensed bariatric surgeons, the gap in quality between them can be vast. The good thing is: credentials that separate a fellowship-trained bariatric surgeon from a general surgeon who occasionally performs weight-loss procedures are highly specific and verifiable.
If you are currently researching your options, this guide explains exactly what to look for and how Pivot’s surgical team compares to the highest standards in the industry.
Not sure surgery is right for you yet? Find out if you qualify first.
What Makes a Bariatric Surgeon the Best? The Criteria
Marketing copy can call anyone a top surgeon, but always remember that credentials can’t be faked. These seven markers tell you who has the training, experience, and support structure behind safe, lasting results.
| Credential or Marker | What It Means for You |
| Board certification, American Board of Surgery | The surgeon passed rigorous national exams and keeps that certification current through ongoing education. |
| FACS (Fellow of the American College of Surgeons) | A peer-reviewed membership that confirms ethical practice and proven surgical competence. |
| FASMBS designation. Fellow of the American Society for Metabolic and Bariatric Surgery (FASMBS) | The gold standard credential for this field. It requires documented case volume and deep experience in weight loss procedures. |
| Bariatric fellowship training | A full year or more of subspecialty training at an accredited bariatric center, beyond general surgical residency. |
| Procedure volume | Surgeons who perform a high number of cases each year show better outcomes and lower complication rates. |
| Revision surgery capability | The skill to correct or revise a prior bariatric procedure. It signals an advanced level of technical ability. |
| Multidisciplinary program | Registered dietitians, psychological support, and structured long-term follow-up built into the program, not offered as an afterthought. |
Board certification and fellowship training correlate with lower complication rates, and high annual case volume is one of the strongest predictors of surgical safety. MBSAQIP accreditation is the national quality program from the American College of Surgeons and ASMBS. Accredited facilities meet strict safety and outcomes benchmarks, so ask about it by name.
When a surgeon and facility clear every bar on this list, your risk drops. Your odds of long-term success rise with it.
One more marker worth checking: procedure range. A surgeon who performs sleeves, bypasses, endoscopic options, and revisions can match the procedure to your situation, not the other way around.
The Program Behind Pivot’s Weight Loss Surgeons
Surgical skill gets most of the attention, but it’s only part of the outcome. Pre-op nutrition education, psychological preparation, and structured follow-up shape long-term results just as much. A best-in-class bariatric surgery center in Arizona builds all three into the program, whether you’re in Phoenix, Mesa, or Tempe.
Pivot delivers each one. Registered dietitians Chelsea and Katy lead the nutrition support program, working with patients before surgery and long after it. Pivot’s Lantern post-op support program adds structured check-ins, accountability, and ongoing access to the care team.
Psychological readiness gets attention too. Pivot prepares patients before surgery, then keeps support in place through the adjustment period, when the risk is highest. That long-view model is what separates a program from a procedure.
Cost support is part of the program too. Through employer partnerships, Pivot offers free surgery for qualifying patients. Few practices in the state can say the same.
Pivot’s Surgical Team: Three Board-Certified, Fellowship-Trained Surgeons
Together, Pivot’s surgeons hold more than 35 years of combined bariatric surgery experience. All three are board-certified. All three completed fellowship training at nationally recognized institutions, including Stanford and UC Irvine. Between them, they hold FACS and FASMBS designations, national research honors, and multiple Top Doctor awards.
Finding one FASMBS surgeon in Arizona takes real digging. Pivot has more than one on the same team, and few three-surgeon practices anywhere in the state match this credential combination. You can meet the full surgical team or start with the profiles below.
Dr. John DeBarros, MD
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Chief Medical Officer at Pivot Weight Loss. Board-certified by the American Board of Surgery with more than 25 years of surgical experience and thousands of bariatric procedures performed. Recognized as one of Phoenix Magazine’s Top Doctors. Dr. DeBarros leads Pivot’s surgical program and performs sleeve gastrectomy, gastric bypass, endoscopic procedures, and revision surgeries. He has spent more than two decades refining minimally invasive surgical techniques. Read his full profile: Dr. John DeBarros |
Dr. Rob Schuster, MD, FACS, FASMBS
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Board-certified bariatric and general surgeon. Fellow of the American College of Surgeons (FACS) and Fellow of the American Society for Metabolic and Bariatric Surgery (FASMBS). Former research fellow and clinical instructor of minimally invasive surgery at Stanford University. Past program director of a Phoenix surgical residency, Chief of Staff, Chief of Surgery, and Medical Director for Bariatric Surgery. His recognitions include Phoenix Magazine Top Doc and America’s Top Surgeon from the Consumer’s Research Council of America. Phoenix-area hospitals have also honored him as Educator of the Year and Physician of the Year. His background spans bariatric, general, oncologic, endocrine, and trauma surgery, including complex revision procedures. Read his full profile: Dr. Rob Schuster |
Dr. Jason Richardson, MD, FASMBS
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Board-certified by the American Board of Surgery. Fellowship-trained in minimally invasive and bariatric surgery at the University of California, Irvine. Recipient of the ASMBS Plenary Session Award, one of the field’s highest research honors. Named to Top Doctors lists since 2010 and published extensively in general and bariatric surgery research. Beyond the operating room, Dr. Richardson trains and mentors medical students, residents, and junior surgeons in advanced surgical techniques. If you’re searching for a board-certified bariatric surgeon in Phoenix, AZ with national recognition, his record speaks for itself. Read his full profile: Dr. Jason Richardson |
Ready to consult with a surgeon who holds all the credentials listed above?
Take the 60-second assessment and Pivot’s team will follow up with your next steps.
Take the 60-second assessmentQuestions to Ask at Your Bariatric Consultation
Knowing how to choose the best bariatric surgeon in Arizona comes down to asking direct questions. A qualified surgeon will answer every one of these without hesitation.
1. Are you board certified by the American Board of Surgery? Certification confirms national-level training and ongoing education requirements.
2. Do you hold FASMBS designation, and where did you complete your bariatric fellowship? Both confirm subspecialty training and documented experience with weight-loss procedures.
3. How many of this specific procedure have you performed in the past year? Annual volume is one of the strongest predictors of safety and outcomes.
4. Is this facility MBSAQIP accredited? Accredited centers meet national benchmarks for safety, staffing, and results.
5. Do you perform revision surgeries? A yes signals advanced technical skill, and it matters if you ever need a correction.
6. What does your post-operative support program include? Long-term follow-up drives lasting weight loss more than any single surgical detail.
Every weight-loss surgeon in Phoenix, AZ, should welcome these questions. If one dodges them, keep looking.
What Patients Say
Credentials tell you a surgeon is qualified, but patients tell you what the experience is like. The stories below follow a pattern: careful preparation, a smooth procedure, and follow-up that didn’t fade after week one.



Take the First Step
You deserve a surgical team that meets the highest standards of excellence, and at Pivot, we’ve built a team that does exactly that. With three fellowship-trained, board-certified bariatric surgeons practicing in Mesa, Phoenix, and Tempe, we are proud to offer top-tier care right here in the Valley.
If you’re ready to explore what’s possible, we invite you to review our bariatric procedures to find the right fit for your journey. Or, if you’re ready to take action, spend just one minute on our 60-second assessment to begin your transformation.
