Print Departments and specialties Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Staff skilled in dozens of specialties work together to ensure quality care and successful recovery. Departments that treat this condition Bariatric Center in Florida Endocrine Surgery Endocrinology Gastroenterology and Hepatology Doctors who treat this condition edit search filters Close Narrow your search By location Phoenix/Scottsdale, AZ Rochester, MN By last name Find a doctor whose last name begins with the letter A A Find a doctor whose last name begins with the letter B B Find a doctor whose last name begins with the letter C C active Find a doctor whose last name begins with the letter D D Find a doctor whose last name begins with the letter E E There are no doctors whose last name begins with the letter F F Find a doctor whose last name begins with the letter G G Find a doctor whose last name begins with the letter H H There are no doctors whose last name begins with the letter I I Find a doctor whose last name begins with the letter J J Find a doctor whose last name begins with the letter K K Find a doctor whose last name begins with the letter L L Find a doctor whose last name begins with the letter M M Find a doctor whose last name begins with the letter N N There are no doctors whose last name begins with the letter O O Find a doctor whose last name begins with the letter P P There are no doctors whose last name begins with the letter Q Q Find a doctor whose last name begins with the letter R R Find a doctor whose last name begins with the letter S S Find a doctor whose last name begins with the letter T T Find a doctor whose last name begins with the letter U U Find a doctor whose last name begins with the letter V V Find a doctor whose last name begins with the letter W W There are no doctors whose last name begins with the letter X X There are no doctors whose last name begins with the letter Y Y There are no doctors whose last name begins with the letter Z Z Reset all filters Search Tips Use quotes for phrases. Even if there are no auto-suggestions within the search field, hit "Search" anyway, as you may still get results. Displaying 1-3 out of 3 doctors available Last Name Initial: D Elena Anna (Eleanna) O. De Filippis, M.D., Ph.D. Internist Endocrinologist Phoenix, AZ Areas of focus: Diabetes, Obesity Nathan L. Delafield, M.D. Internist Phoenix, AZ Areas of focus: Joint injection, High blood pressure, Type 2 diabetes, Obesity Tayyab (Ty) S. Diwan, M.D. Transplant Surgeon Rochester, MN Areas of focus: Donor nephrectomy, Kidney transplant, Pancreas transplant, Bariatric surgery, Liver transplant, Diabetes, Kidney failur...e, Cirrhosis, Obesity Show more areas of focus for Tayyab (Ty) S. Diwan, M.D. By Mayo Clinic Staff Obesity care at Mayo Clinic Request an appointment Diagnosis & treatmentCare at Mayo Clinic Sept. 02, 2021 Print Share on: FacebookTwitter Related BMI and waist circumference calculator What is insulin resistance? A Mayo Clinic expert explains Associated Procedures Bariatric surgery Biliopancreatic diversion with duodenal switch (BPD/DS) Cholesterol test Gastric bypass (Roux-en-Y) Intragastric balloon Liver function tests Sleeve gastrectomy Show more associated procedures News from Mayo Clinic Obesity makes it harder to diagnose and treat heart disease Feb. 28, 2023, 04:15 p.m. CDT Mayo Clinic Minute: Obesity and heart disease Feb. 23, 2023, 05:30 p.m. CDT Healthy Weight Awareness Month. Mayo Clinic innovations can help you lose weight, keep it off Jan. 05, 2023, 04:15 p.m. CDT Mayo Clinic Q and A: Probiotics, gut bacteria and weight -- what's the connection? Sept. 25, 2022, 11:00 a.m. CDT Addressing health care barriers during Hispanic Heritage Month Sept. 15, 2022, 04:30 p.m. CDT Science Saturday: Researchers explore personalized approach to anti-obesity medications May 01, 2021, 07:00 a.m. CDT Show more news from Mayo Clinic Products & Services Book: The Mayo Clinic Diet Bundle The Mayo Clinic Diet Experience Show more products and services from Mayo Clinic ObesitySymptoms & causesDiagnosis & treatmentDoctors & departmentsCare at Mayo Clinic Research: It's All About Patients CON-20375722 Patient Care & Health Information Diseases & Conditions Obesity