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Banner - University Medicine Obesity and Bariatric Surgery Center

1441 N. 12th Street
2nd floor
Phoenix, AZ 85006

Hours Today: 8 a.m. to 5 p.m.


Banner – University Medicine Obesity and Bariatric Surgery Center offers expert care in the medical and surgical treatment of obesity for adult and adolescent patients. Our multidisciplinary team offers highly personalized service and state of the art care. The foundation of our program is built on providing both group and individualized patient education. Our team has experience with more than 5,000 bariatric surgical patients.

Getting Here

Hours At This Location
8 a.m. to 5 p.m.
8 a.m. to 5 p.m.
8 a.m. to 5 p.m.
8 a.m. to 5 p.m.
8 a.m. to 5 p.m.
About Us

We use a minimally invasive laparoscopic technique in over 99% of our procedures. We specialize in gastric bypass, sleeve gastrectomy, duodenal switch, adjustable gastric band and both revisions for weight regain and corrective surgery for chronic problems after previous bariatric surgery. Each patient is evaluated by a registered dietitian, surgeon and psychologist. Our family nurse practitioner provides critical support throughout the program and helps in the extensive preoperative and postoperative education courses.

In addition, our experienced staff facilitate your authorization process. Medical weight loss therapy is provided in the office your insurance company requires it or we can work with your primary care physician to satisfy that requirement. We also offer a full adolescent bariatric program for youths aged 13 - 19 and there is no upper age limit. Our goal at Banner - University Medicine Obesity and Bariatric Surgery Center is it to make your transition to better health as seamless as possible.

Patients and Visitors

Meet Our Doctors

Learn more about the doctors at this location.

Jennifer Preston, MD

General Surgery

Physician, Banner – University Medicine General Surgery Center
My entire office strives to be respectful and responsive and to deliver highly personalized care.

Gerard Quigley, DNP

Nurse Practitioner

Nurse Practitioner (NP), Banner - University Medicine Institutes 1441
Getting to know each individual beyond their disease state, empowering them to become a partner in their healthcare, and helping them make decisions toward better health.

Rohit Nathan, DO


Physician, Banner - University Medicine Institutes 1441
I strive to make a connection with each patient as an individual so that we can work collaboratively to promote healing and wellness.

View all doctors at this location.