Johannes Kratz, MD

Director of Advanced Minimally Invasive Thoracic Surgery
Thoracic surgeon

Dr. Johannes Kratz is a general thoracic surgeon who specializes in treating disorders of the trachea, chest wall, lung, esophagus and mediastinum. He is director of Advanced Minimally Invasive Thoracic Surgery and the Van Auken Endowed Chair in Thoracic Oncology.

Kratz's research interests include robotic surgery outcomes, lung and esophageal cancers, biomarkers to personalize lung cancer treatment and immunotherapies for thoracic tumors. His current research focuses on understanding the molecular and genetic profiles of high-risk early-stage tumors and developing targeted therapies to treat them.

While a surgical research fellow at the UCSF Thoracic Oncology Laboratory, Kratz developed a test that more accurately predicts outcomes for patients with early-stage lung cancer. The test is now available to patients and has improved outcomes in those with high-risk early-stage lung cancer.

Kratz earned his medical degree at Harvard Medical School, where he graduated magna cum laude. He completed a general surgery residency at Massachusetts General Hospital. He completed his fellowship in cardiothoracic surgery at UCSF and advanced fellowships in robotic thoracic surgery as an American Association for Thoracic Surgery Graham Foundation Robotics Fellow as well as at the University of Alabama at Birmingham. He has a master's degree in philosophy from Stanford University.

Kratz is a member of the American College of Surgeons, Society of Thoracic Surgeons, Massachusetts Medical Society and American Society of Clinical Oncology. He is a recipient of the 2017 UCSF Health Exceptional Physician Award.


Thoracic Surgery and Oncology
1600 Divisadero St., Fourth Floor
San Francisco, CA 94143-1705
Phone: (415) 885-3882
Fax: (415) 353-7151

Hours: Monday to Friday
8 a.m. – 5 p.m.

Board Certification

Surgery, American Board of Surgery

Academic Title

Assistant Professor

More about Johannes Kratz


Stanford University, B.S., Biological Sciences 1998
Stanford University, B.A., Philosophy 1998
Stanford University, M.A., Philosophy 2000
Harvard School of Medicine 2006


Massachusetts General Hospital, General Surgery 2014


University of Alabama at Birmingham, Advanced Surgical Robotics 2016
American Association for Thoracic Surgery Graham Foundation , Surgical Robotics 2016
UCSF Medical Center, Thoracic Surgery 2017

Selected Research and Publications

  1. Ramirez JL, Kratz JR, Wieselthaler GM. Giant right coronary artery aneurysm presenting as cardiac tamponade. Interact Cardiovasc Thorac Surg. 2018 May 25.
  2. Woodard GA, Wang SX, Kratz JR, Zoon-Besselink CT, Chiang CY, Gubens MA, Jahan TM, Blakely CM, Jones KD, Mann MJ, Jablons DM. Adjuvant Chemotherapy Guided by Molecular Profiling and Improved Outcomes in Early Stage, Non-Small-Cell Lung Cancer. Clin Lung Cancer. 2018 Jan; 19(1):58-64.
  3. Kratz JR, Woodard G, Jablons DM. Management of Lung Cancer Invading the Superior Sulcus. Thorac Surg Clin. 2017 May; 27(2):149-157.

Publications are derived from MEDLINE/PubMed and provided by UCSF Profiles, a service of the Clinical & Translational Science Institute (CTSI) at UCSF. Researchers can make corrections and additions to their publications by logging on to UCSF Profiles.