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Gary B. Korus, M.D., FACS
Gastrointestinal Surgery

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Administrative/Clinical Offices:
Penn Medicine at University City
3737 Market Street, 4th Floor
Philadelphia, PA 19104
Administrative Assistant: Deborah Adcock
Administrative Telephone: 215-662-9198
Administrative Fax: 215-243-4649

Contact Information (internal use only)


Dr. Korus is an Associate Professor of Clinical Surgery speicalizing in Bariatric Surgery and Gastrointestinal Surgery.


Faculty Appointments
2014 - present Associate Professor of Clinical Surgery
Perelman School of Medicine
Philadelphia, Pennsylvania
2004 - 2014 Assistant Professor of Clinical Surgery
Perelman School of Medicine
Philadelphia, Pennsylvania
Hospital and Administrative Appointments
2004 - present Attending Physician, Hospital of the University of Pennsylvania
Philadelphia, Pennsylvania
2004 - present Active Physician, Presbyterian Medical Center
Philadelphia, Pennsylvania
2001 - 2002 Director, Quality Assurance, Department of Surgery
Albert Einstein Medical Center/Jefferson Health System
Philadelphia, Pennsylvania
1998 - 2003 Attending Physician, Albert Einstein Medical Center Level I Trauma Service
Philadelphia, Pennsylvania
1994 - 2003 Attending Physician, Jeanes Hospital
Philadelphia, Pennsylvania
1994 - 2003 Attending Physician, Elkins Park Hospital/Tenet Healthcare
Philadelphia, Pennsylvania
1994 - 2003 Attending Physician, Albert Einstein Medical Center
Philadelphia, Pennsylvania
1994 - 2003 Steerman and Korus Surgical Associates
Philadelphia, Pennsylvania
Spring 2014

Intensive Workshop in Clinical Ethics Mediation    
(BIOE-546-001), University of Pennsylvania
Philadelphia, Pennsylvania

1985 - 1989 M.D. Case Western Reserve University School of Medicine
Cleveland, Ohio
1983 - 1984 Columbia University, New York, New York
(Premedical Sciences)
1982 - 1983 New York Law School, New York, New York
1982 - 1983 New York Law School, New York, New York
1978 - 1982 B.A. - Brandeis University
Waltham, Massachusetts (American Studies)
Postgraduate Training and Fellowship Appointments
2009 - 2010

Penn Medicine Leadership Forum       

2013 - 2014 Penn Medicine Physician Leadership Academy
2003 - 2004 Fellow in Foregut/Bariatric Surgery
Medical College of Wisconsin/ Froedtert Hospital
Milwaukee, Wisconsin
1990 - 1994 Resident in General Surgery
University of Rochester, Rochester, New York
1989 - 1990 Intern in General Surgery/Orthopedics
University Hospitals of Cleveland, Cleveland, Ohio
National/International Societies
2011 American Board of Surgery (Examiner)
2008 American Board of Surgery (Examiner)
2005 - present American Society for Metabolic and Bariatric Surgery
2004 - present  Society of American Gastrointestinal & Endoscopic Surgeons
2004 - present Society for Surgery of the Alimentary Tract
1994 American Medical Association
1994  American College of Surgeons
Local/Regional Societies
2004 - present Pennsylvania Medical Society
2004 - present Metropolitan Chapter, American College of Surgeons
Scientific Committees
2006 - 2012 Society of American Gastrointestinal & Endoscopic Surgeons:
Flexible Endoscopy Committee
Outcomes Committee
Research Activity
  • A Randomized, Open Label, Pilot Assessment of the Effect of Protonix I.V. for Injection on Gastric pH in ICU Patients. Secondary Investigator.
  • A Multi-Center, Randomized, Double-Blind, Comparative Trial of Intravenous Merrem vs. Primaxim I.V. in the Treatment of Hospitalized Subjects with Complicated Skin and Skin Structure Infections. Secondary Investigator.
  • Potassium Dependence of Magnesium Cardioplegia. Case Western Reserve University School of Medicine.
  • Purification and Characterization of Heme Oxygenase and Cytochrome P-450 Reductase. PI: Dr. Attallah Kappas, Metabolism/Pharmacology Lab, The Rockefeller University.
  • Biological and Physicochemical Characterization of Human and Synthetic Interferons. PI: Dr. Mathilde Krim, Interferon Research Lab, Memorial Sloan-Kettering Cancer Center.
Research Publications, peer reviewed
  1. Vassiliou MC, Dunkin BJ, Fried GM, MellingerJD, Trus T, Kaneva P, Lyons C, KorndofferJR, Ujili M, Velanovich V, Kochman M, Tsuda S, Martinez J, Scott DJ,      Korus G, Park A, Marks JM. Fundamentals of endoscopic surgery: creation and validation of the hands-on test. Surgical Endoscopy 28(3):704-711, (Epub March 2014).
  2. Stanton JE, Korus G, Israelite C, Fogt F. Prospective risk assessment and intervention to reduce blood transfusion errors.  Journal of Clinical Outcomes Management 14(8):441-446, Aug. 2007.
  3. Sareli AE, Cantor CR, Williams NN, Korus G, Raper SE, Pien G, Hurley S, Maislin G, Schwab RJ.  Obstructive sleep apnea in patients undergoing bariatric surgery: A tertiary center experience.  Obes Surg. 2011 Mar;21(3):316-27. doi: 10.1007/s11695-009-9928-1. Epub 2009 Aug 11.
Contributions to peer-reviewed clinical research publications, participation cited but not by authorship
  1. Shikora SA, Bergenstal R, Bessler M, Brody F, Foster G, Frank A, Gold M, Klein S,
  2. Kushner R, Sarwer DB. Implantable gastric stimulation for the treatment of clinically      severe obesity: Results of the SHAPE trial.  Surgical Obesity & Related Disorders 2009 5(1):31-37, Jan./Feb. 2009. 
  1. Friedberg JS, Culligan M, Smith D, Buyske J, Korus G, Hahn S. Routine Staging Laparoscopy and Bronchoscopy Alters Management for Patients with Pleural Mesothelioma. General Thoracic Club; San Diego, CA. May 10-14, 2008.
  2. Sareli AE, Williams NN, Korus G, Raper SE, Schwab R, Hurley S, Lang R, Cartagena S, Pack AI, Cantor C. Prevalence and Severity of Obstructive Sleep Apnea in Patients Under- going Bariatric Surgery. American Thoracic Society; Toronto, Canada. May 16-21, 2008.
  3. Endoscopic Skills Level-Do We Need to Set Standards and Evaluation Methods for a Safe Training and Practice? SAGES; San Antonio, Tx. March 30-Apr 2, 2011. 
  4. Friedberg JS, Culligan M, Korus G, Buyske J, Hahn SM, Simone CB, Stevenson J, Sterman D, Wang E, Kuhns K, Cengel K. Routine Laparoscopic and Selective Contralateral Thoracoscopic Staging in 151 Patients Undergoing Surgery for Malignant Pleural Mesothelioma. 11th International Conference of International Mesothelioma Interest Group, Boston, MA, September, 2012.
  5. Friedberg JS, Culligan M, Hahn S, Simone C, Buyske J, Korus G, Sterman D, Kuhns K, Alley E, Cengel K. 16 Year Experience of Routine Laparoscopy and Selective Contralateral Thoracoscopic Staging for Malignant Pleural Mesothelioma, 15th World Congress on Lung Cancer: International Association for the Study of Lung Cancer, Sydney, Australia. (accepted for Oct 28, 2013).
Editorials, Reviews, Chapters
  1. Korus G. Laparoscopic and Enteral Access. Chap. 2 in Murayama KM (ed.): Evidence-Based Approach to Minimally Invasive Surgery. Woodbury: Ciné-Med Publishing, Inc., 2012, 9-15.
  2. Otterson MF, Korus GB.  Diverticular disease.  Chap. 71 in Mulholland MW (ed.): Greenfield’s Surgery: Scientific Principles & Practice, 4th Edition.  Philadelphia: Lippincott Williams & Wilkins, 2006, 1130-1137.
Alternative Media
  1. Reduction and repair of internal hernia after LGBP.  Paulsen C, Korus GB: Video Presentation, Society of American Gastrointestinal and Endoscopic Surgeons, Apr. 2007.
Awards, Honors and Membership in Honorary Societies
2009  Top Docs, Philadelphia Magazine
2008 Top Docs, Philadelphia Magazine
1993 Walter A. Calihan, M.D., Outstanding Resident Award, University of Rochester/Highland Hospital
1989 Alpha Omega Alpha, Case Western Reserve University School of Medicine
1983 Certificate for Outstanding Moot Court Performance, New York Law School

Dr. Gary Korus

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