The Gastrointestinal Oncology Program specializes in treating and caring for patients with cancers in the digestive system. The program's multidisciplinary team includes gastroenterologists, surgical oncologists, medical oncologists, radiation oncologists, radiologists, interventional radiologists, nurses, and a genetic counselor.

Surgery

Cherif Nazmy Boutros, MD

Cherif Nazmy Boutros, MD

Associate Professor of Surgery

Nader N. Hanna, MD

Nader N. Hanna, MD

Professor of Surgery

Medical Director, UM St. Joseph Medical Center Cancer Institute

Andrea C. Bafford, MD

Andrea C. Bafford, MD

Assistant Professor of Surgery

Richard T. Birkett, MD

Richard T. Birkett, MD

Assistant Professor of Surgery

Richelle Toni-Gaye Williams, MD

Richelle Toni-Gaye Williams, MD

Assistant Professor of Surgery

Medical Oncology

Yixing Jiang, MD

Yixing Jiang, MD

Associate Professor of Medicine

Petr F. Hausner, MD

Petr F. Hausner, MD

Associate Professor of Medicine

Radiation Oncology

Adeel Kaiser, MD

Adeel Kaiser, MD

Assistant Professor of Radiation Oncology

Jason K. Molitoris, MD, PhD

Jason K. Molitoris, MD, PhD

Assistant Professor of Radiation Oncology

William F. Regine, MD, FACR, FACRO

William F. Regine, MD, FACR, FACRO

Professor of Radiation Oncology

Gastroenterology

Peter E. Darwin, MD

Peter E. Darwin, MD

Professor of Medicine

Bruce David Greenwald, MD

Bruce David Greenwald, MD

Professor of Medicine

Nurse Practitioners

Martha Francis head shot

Martha Francis, CRNP

Nurse Practitioner

Tiffani Tyer head shot

Tiiffani Tyer

Nurse Practitioner

Core Resources

UMGCCC genetic counselor Jessica Scott

Jessica Scott

Certified Genetic Counselor 410-328-7904

Kaitlin Schotz

Kaitlin Schotz, RD, LDN, CNSC

Senior Nutrition Specialist

Patricia Widra, MD

Patricia Widra, MD

Clinical Assistant Professor of Psychiatry

Radiology

  • Barry D. Daly, MD
    Professor of Diagnostic Radiology and Nuclear Medicine

GI Program Director

  • Medhat M. Nagib, MBBCh
    410-328-7320

Social Work

  • Brady Freitas, LMSW