

Oncology
Daniel Wiener, M.D.
Instructor of Surgery at Harvard Medical School. After graduating with honors from Columbia University, College of Physicians and Surgeons, he completed his sur; Assistant Professor of Surgery, Harvard Medical School
Dr. Daniel Wiener is a physician at Dana-Farber Cancer Institute specializing in in gastroesophageal reflux disease (GERD), Barrett’s esophagus, hiatal hernias, and esophageal cancer., serving as Instructor of Surgery at Harvard Medical School. After graduating with honors from Columbia University, College of Physicians and Surgeons, he completed his sur; Assistant Professor of Surgery, Harvard Medical School.
25+
Years in Practice
Credentials
Board Certifications
- Surgery, 2009
- Thoracic Surgery, 2011
Education & Training
- Columbia University College of Physicians & Surgeons (MD)
- Brigham and Women's Hospital, Thoracic Surgery (Residency)
- Dartmouth Hitchcock Medical Center, General Surgery (Residency)
- Dana-Farber Cancer Institute, Research Fellow (Fellowship)
Peer Recognition
- ACS — Fellow (FACS)
2026
- Castle Connolly — Top Doctor
2017-2026 (10 years)
Clinical Focus
Subspecialties
Conditions & Treatments
Practice Details
Hospital Affiliations
- Dana-Farber Cancer Institute
Experience
25+ years in practice