Oncology
Gregory Tiesi, MD
Medical Director, Hepatobiliary Surgery
Hackensack, NJ
Gregory J. Tiesi, MD, FACS, FSSO, is a surgical oncologist specializing in hepatobiliary and pancreatic (HPB) surgery, as well as endocrine surgery. He serves as Medical Director of Hepatobiliary Surgery at Hackensack Meridian Jersey Shore University Medical Center, focusing on complex cases involving pancreas, liver, upper gastrointestinal, thyroid, parathyroid, adrenal, and related cancers. Dr. Tiesi treats adult patients, including those with pancreatic neoplasms, gastrointestinal neoplasms,
19+
Years in Practice
Credentials
Board Certifications
- General Surgery (ABS)
- Surgical Oncology (ABS)
- Complex General Surgical Oncology (ABS)
Education & Training
- Medical School: St. George's University School of Medicine (MD, 2007)
- Residency: Rutgers New Jersey Medical School (General Surgery, 2014)
- Fellowship: University of Miami School of Medicine (Surgical Oncology, 2016)
Peer Recognition
- ACS — Fellow (FACS)
2026
- Healthgrades — Healthgrades Honor Roll
Clinical Focus
Subspecialties
Surgical Oncology
Conditions & Treatments
SarcomaLiver CancerPancreatic CancerEsophageal CancerGastric CancerBiliary Cancer
Practice Details
Hospital Affiliations
- Jersey Shore University Medical Center
- Hackensack Meridian Jersey Shore University Medical Center
Languages
English
Experience
19+ years in practice