Dr. Olivera is a board-certified Gastroenterologist and chief of the Section of Gastrotenterology at Advocate Illinois Masonic Medical Center in Chicago. Dr. Olivera and the team of medical professionals at his weight loss center have been helping people overcome challenges and lose weight for nearly 40 years.

Dr. Olivera is committed to the philosophy that nutrition is the foundation of health. He believes in healthy eating to avoid the development of illness, rather than just treating diseases. He has noted that small changes can make big differences, and he is here to help his patients achieve long term success.

President and Medical Director: Olivera Weight Loss S.C.

Partner: Ghazanfari Olivera Gastroenterology, Ltd.

Certified by the American Board of Internal Medicine (Gastroenterology)

Section Chief of Gastroenterology Department: Advocate Illinois Masonic Medical Center

Hospital Affiliations

– Advocate Illinois Masonic Medical Center
– Holy Family Medical Center
– Swedish Covenant Hospital

Clinical Assistant Professor: Loyola University Medical Center

Medical Director and Board Member: Hispanocare, Inc.

Member of American Gastroenterological Association

Member of Obesity Medicine Association

Member of Better Business Bureau