Meet Our Team

Medical Director

Jason Wallen, MD, MBA, FACS, FCCP

Jason M. Wallen, MD, MBA,
FACS, FCCP

Assistant Professor of Surgery

Medical Director Emerita

Leslie J Kohman, MD, FACS

Leslie J Kohman, MD, FACS
Distinguished Service Professor of Surgery


Note: While the physicians pictured below represent the core team, patients may be seen by other members of each specialty.


Meet Our Team

Ajeet Gajra, MD
Ajeet Gajra, MD
Medical Oncology
Stephen L Graziano, MD
Stephen L Graziano, MD
Medical Oncology
Jeffrey A Bogart, MD
Jeffrey A Bogart, MD
Radiation Oncology
Rolf A Grage, MD
Kaushal Nanavati, MD
Kaushal Nanavati, MD
Integrative Therapy
Dragos N Manta, MD
Dragos N Manta, MD
Pulmonary Medicine
Manju P Paul, MD
Manju P Paul, MD
Pulmonary Medicine
Birendra P Sah, MD
Birendra P Sah, MD
Pulmonary Medicine