Dr. Gregory A. Robertson

The Center for Thoracic Disease and Transplantation at The Norton Thoracic Institute believes in treating all patients with dignity and respect.Using a multidisciplinary approach, the Center works to diagnose and treat some of the most complex thoracic and esophageal diseases in the Southwest through a team of physicians who provide patients with a plan of care.Patients receive treatment with state-of-the-art technology to ensure a full range of treatment options. We offer treatment and care in accordance with national guidelines. Dr. Mittal is highly rated in 17 conditions, according to our data. His top areas of expertise are Hiatal Hernia, Gastroesophageal Reflux Disease (GERD), Hernia, Endoscopy, and Gastrostomy.

"Shawn Stevenson, DO, FACS is an employed provider who serves as the Director of Bariatric and Foregut Surgery and employed provider at Dignity Health Arizona.He is a board certified, fellowship trained surgeon who specializes in advanced bariatric surgical procedures including metabolic weight loss, weight loss and oncology surgery using advanced laparoscopic techniques.Dr. Stevenson earned his undergraduate in Biology from Grand Canyon University. He earned his doctorate degree in Osteopathic Medicine at Midwestern University and completed is residency in  General Surgery at the University of Arizona.He is a fellow of the American College of Surgeons and a member of the Arizona Chapter of the American College of Surgeons. He is a professor at the University of Arizona College of Medicine, an Assistant Profession at Midwestern University College of Medicine and Adjunct Professor at A.T. Still University College of Osteopathic Medicine and a Clinical Preceptor for Northern Arizona University.It is a privilege to be entrusted with the health of our patients and to provide them with the best possible care and outcomes available. I take great pride in the relationships we develop with our patients and welcome the opportunity to care for patients health.I strive to provide excellent and up to date surgery for my patients through the use of the latest surgical technologies and meticulous surgical technique. It is also of the utmost importance to me that the surgical process goes as smoothly as possible resulting in a quick and effective healing process for my patients.It is a privilege to be entrusted with the health of our patients and to provide them with the best possible care and outcomes available. I take great pride in the relationships we develop with our patients and welcome the opportunity to care for patients health.Quality care is important to Dr. Stevenson, ""I strive to provide excellent and up to date surgery for my patients through the use of the latest surgical technologies and meticulous surgical technique. It is also of the utmost importance to me that the surgical process goes as smoothly as possible resulting in a quick and effective healing process for my patients.""". Dr. Stevenson is highly rated in 12 conditions, according to our data. His top areas of expertise are Hernia, Cholecystitis, Gallbladder Disease, Sleeve Gastrectomy, and Gastrectomy.

Mohan Ramalingam is a Bariatric Medicine provider in Phoenix, Arizona. Dr. Ramalingam is highly rated in 21 conditions, according to our data. His top areas of expertise are Gallbladder Disease, Cholecystitis, Hernia, Ureteral Reconstruction, and Hernia Surgery.