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Ronald P. DeMatteo, MD, FACS

Ronald P. DeMatteo, MD, FACS Physician

Chair, Department of Surgery John Rhea Barton Professor of Surgery

Dr. DeMatteo is employed by Penn Medicine.

About Dr. Ronald P. DeMatteo

Dr. DeMatteo is the Chairman of the Department of Surgery and a Surgical Oncologist who specializes in treating diseases of the liver, bile duct, gallbladder, pancreas and abdominal sarcomas (GIST).

His clinical research has focused on liver, bile duct, gallbladder, and pancreas cancers. In addition, he has led several national trials testing the benefit of imatinib mesylate (Gleevec) following surgery for gastrointestinal stromal tumor (GIST), a tumor that usually begins in the stomach or intestine.

In the laboratory he and his colleagues study the immune environment of the liver and tumor immunology, working to develop immune therapies to help prevent tumors from returning after surgery.

Recognized by America's Top Doctors for 2017 and 2018

Recognized by Best Doctors in America 2015 - 2018

Recognized in Philadelphia magazine's annual Top Docs issues for 2018 and 2019


  • 2016 — Jeroen Pit Science Award, The GIST Life Raft Support Group
  • 2015 - present — Castle Connolly/Newsweek America's Top Doctors for Cancer
  • 2014 - present — New York Magazine Best Doctors
  • 2013 - present — Castle Connolly/U.S. News and World Report's America's Top Doctors
  • 2008 - 2010 — Society of Surgical Oncology Clinical Investigator Award

Patient Satisfaction Ratings

Patient Rating Breakdown

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our nationally-recognized Press Ganey Patient Satisfaction Survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Responses are measured on a scale of 1 to 5 with 5 being the best score.

Comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Penn Medicine.

Overall Ratings

Clinical Specialties


  • Gastrointestinal Surgery

Programs & Centers:

Board Certification:

  • Surgery, 1998

Clinical Expertise:

  • Adrenal Mass
  • Appendix Cancer
  • Bile Duct Cancer (Cholangiocarcinoma)
  • Carcinoid of the Stomach
  • Carcinoid Tumor of Pancreas
  • Carcinoid Tumors
  • Colon Tumors
  • Cystadenoma of Pancreas
  • Esophagogastric Junction Cancer
  • Gallbladder Cancer
  • Gastrointestinal Bleeding
  • Gastrointestinal Cancer
  • Gastrointestinal Stromal Tumors (GIST)
  • Hepatobiliary Malignancies
  • Insulinoma
  • Intestinal Carcinoid Tumor
  • Intestine Cancer Surgery
  • Intraductal Papillary Mucinous Neoplasm
  • Laparoscopic Spleen Removal Surgery (Splenectomy)
  • Laparoscopic Whipple Procedure
  • Liver Cancer
  • Liver Mass
  • Liver Metastases
  • Liver Surgery
  • Malignant Neoplasm of Pancreatic Duct
  • Malignant Tumor of Extrahepatic Bile Duct
  • Metastatic Colon Cancer
  • Neuroendocrine Tumors
  • Pancreas Head Cancer
  • Pancreas Tail Cancer
  • Pancreatectomy
  • Pancreatic Cancer
  • Pancreatic Neuroendocrine Tumors (Islet Cell Tumors)
  • Pancreatic Tumors
  • Pseudomyxoma Peritonei
  • Rectal Cancer
  • Recurrent Colorectal Cancer
  • Small Bowel Cancer
  • Small Intestine Cancer
  • Stomach Cancer (Gastric Cancer)
  • Stomach Tumor Surgery
  • Stromal Tumor of the Intestine
  • Surgical Management of Advanced Hepato-Biliary Cancer
  • Surgical Management of Advanced Pancreatic Cancer
Show All Expertise

Practice Locations and Appointments

Insurance Accepted

  • Aetna US Healthcare
  • Cigna
  • Cigna HealthSpring
  • Clover Health Plan
  • CVS Health
  • Devon Health Services (Americare)
  • eLAP Services
  • Gateway Health Plan
  • Geisinger Health Plan
  • HealthAmerica / HealthAssurance, a Coventry Plan
  • HealthPartners
  • HealthPartners Medicare
  • HealthSmart
  • Highmark Blue Shield
  • Homestead Smart Health Plans
  • Horizon Blue Cross Blue Shield of New Jersey
  • Humana / Choicecare
  • Independence Blue Cross (Keystone East)
  • Intergroup
  • Keystone First
  • Keystone First Medicare
  • Multiplan
  • NJ Medicaid
  • NJ Qualcare
  • Oscar Health Plan of PA
  • Oxford Health Plan
  • PA Health and Wellness (Centene) Medicare
  • PA Medicaid
  • PA Medicare
  • Preferred Health Care/LGH
  • Provider Partners Health Plan
  • Rail Road Medicare / Palmetto GBA
  • Remedy Partners at Penn Medicine
  • Tricare
  • United Healthcare
  • UnitedHealthcare Community Plan
  • US Family Health Plan
  • Veterans Choice Program

Education and Training

Medical School: Cornell University
Residency: Hospital of the University of Pennsylvania
Residency: Memorial Sloan-Kettering Cancer Center


American Association for Cancer Research, National American Association for Study of Liver Diseases, National American Association of Immunologists, National American College of Surgeons, National American Hepatopancreatobiliary Association, National American Society of Clinical Investigation, National American Society of Clinical Oncology, National American Surgical Association, National Association of Academic Surgeons, National Cancer Immunology and Immunotherapy (CII) Study Section, NIH, National External Advisory Board, T32 in Hematology/Medical Oncology, Columbia University, Local Gastrointestinal Stromal Tumor Task Force, National Cancer Institute, National International Surgical Group (ISG), International James IV Association of Surgeons, International K08 Committee for Steven Katz, Roger Williams Cancer Center, National Society for Immunotherapy of Cancer, National Society for Surgery of Alimentary Tract, National Society of Clinical Surgery, National Society of Surgical Oncology, National Society of University Surgeons, National Surgical Biology Club I, National

Hospital Affiliation

Dr. DeMatteo is employed by Penn Medicine.

Hospital Privileges:

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
  • Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.
  • Pennsylvania Hospital: Has privileges to treat patients in the hospital.


Selected Publications:

Cavnar MJ, DeMatteo RP: Perspective on gastrointestinal stromal tumors. Magnicot's Abdominal Operations, 13th Edition. : 2017 (in press).

Sicklick JK, Babicky M, DeMatteo RP: Resection of non-adenomatous gastric tumors. Operative Endoscopic and Minimally Invasive Surgery. : 2017 (in press).

Cavnar MJ, Turcotte S, Katz SC, Kuk D, Gönen M, Shia J, Allen PJ, Balachandran VP, D'Angelica MI, Kingham TP, Jarnagin WR, DeMatteo RP: Tumor-associated macrophage infiltration in colorectal cancer liver metastases is associated with better outcome. Ann Surg Oncol 24 (7): 1835-1842,2017.

Groot Koerkamp B, Sadot E, Kemeny NE, Gönen M, Leal JN, Allen PJ, Cercek A, DeMatteo RP, Kingham TP, Jarnagin WR, D'Angelica MI.: Perioperative hepatic arterial infusion pump chemotherapy is associated with longer survival after resection of colorectal liver metastases: A propensity score analysis. J Clin Oncol 35 (17): 1938-1944,2017.

Creasy JM, Goldman DA, Dudeja V, Lowery MA, Cercek A, Balachandran VP, Allen PJ, DeMatteo RP, Kingham TP, D'Angelica MI, Jarnagin WR.: Systemic chemotherapy combined with resection for locally advanced gallbladder carcinoma: Surgical and survival outcomes. J Am Coll Surg 224 (5): 906-916,2017.

Pak LM, Coit DG, Eaton AA, Allen PJ, D'Angelica MI, DeMatteo RP, Jarnagin WR, Strong VE, Kingham TP: Percutaneous peritoneal lavage for the rapid staging of gastric and pancreatic cancer. Ann Surg Oncol 24 (5): 1174-1179,2017.

Langan RC, Goldman DA, D'Angelica MI, DeMatteo RP, Allen PJ, Balachandran VP, Jarnagin WR, Kingham TP: Recurrence patterns following irreversible electroporation for hepatic malignancies. J Surg Oncol : 2017.

Pak LM, D'Angelica MI, DeMatteo RP, Kingham TP, Balachandran VP, Jarnagin WR, Allen PJ.: Natural history of patients followed radiographically with mucinous cysts of the pancreas. J Gastrointest Surg : 2017.

Simpson AL, Doussot A, Creasy JM, Adams LB, Allen PJ, DeMatteo RP, Gönen M, Kemeny NE, Kingham TP, Shia J, Jarnagin WR, Do RKG, D'Angelica MI: Computed tomography image texture: A noninvasive prognostic marker of hepatic recurrence after hepatectomy for metastatic colorectal cancer. Ann Surg Oncol : 2017.

Sorenson EC, Khanin R, Bamboat ZM, Cavnar MJ, Kim TS, Sadot E, Zeng S, Greer JB, Seifert AM, Cohen NA, Crawley MH, Green BL, Klimstra DS, DeMatteo RP.: Genome and transcriptome profiling of fibrolamellar hepatocellular carcinoma demonstrates p53 and IGF2BP1 dysregulation. PLoS One 12 (5): e0176562,2017.

Academic Contact Info

Department of Surgery
Perelman School of Medicine, University of Pennsylvania
3400 Spruce Street, 4th Floor Silverstein Pvln.

Philadelphia, PA 19104
Phone: (215) 662-7539
Patient appointments: 800-789-7366 (PENN)

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