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Winthrop University Hospital

John D Allendorf, M.D., F.A.C.S.

Vice Chairman of Surgery
Chief of Surgical Oncology
Director, Pancreas Program
Tel: 516 663-2436


  • Columbia University College of Physicians and Surgeons, M.D., May 1997
  • Johns Hopkins University, B.A., Biology, May 1992

Postgraduate Training

Internship: General Surgery, Columbia-Presbyterian Hospital, New York, NY
July 1997 – June 1998
Residency: General Surgery, New York Presbyterian Hospital – Columbia Campus, New York, NY
July 1998 – June 2002
Fellowship: Liver Transplantation and Hepatobiliary Surgery, New York Presbyterian Hospital – Columbia Campus, New York, NY
July 2002 – June 2003

Board Certification

  • American Board of Surgery 9/17/03
  • Recertified American Board of Surgery 12/6/12 (expires 7/1/24)

Professional Memberships

  • Society for Surgery of the Alimentary Tract, Program Committee
  • American Association of Endocrine Surgeons, Program Directors’ Committee
  • American College of Surgeons
  • American Hepato Pancreato Biliary Association
  • Association of Academic Surgery
  • John Jones Surgical Society
  • New York Surgical Society
  • Pancreas Club
  • Society of Surgical Oncology


  • Marqui’s Who’s Who in Medicine and Healthcare 2011-2012
  • Patients’ Choice Award 2010
  • Teacher of the Year, awarded by the surgical housestaff, June 2010
  • Kenneth A. Forde Junior Faculty Research Award, October 2008
  • Fellow, the American College of Surgeons, October 2006
  • American College of Surgeons Faculty Research Fellowship Award, July 2005
  • Allen O. Whipple Memorial Prize for excellence in surgery, May 1997
  • Phi Beta Kappa, Alpha Chapter of Maryland, 1992


Book Chapters

  • Allendorf JD, Lee JA.  “Primary Surgery of Pancreatic Islet Tumors.” UpToDate, Ed. Sally Carty, Online 2011.
  • DiNorcia J, Allendorf JD.  “Thyroid surgery performed under local anesthesia and same-day surgery.”  In Thyroid Cancer:  From emergent biotechnology to clinical practice guidelines.  Ed. A. Carpi and J.I. Mechanick.  Boca Raton:  CRC Press Taylor & Francis Group, 2011; pp249-270.
  • Allendorf JD, Whelan RL.  “Radiation injury to the large bowel.”  Current Therapy in Colon and Rectal Surgery.  Second edition.  Ed. VW Fazio.  Mosby—Yearbook, Inc., 1999.
  • Allendorf JD, Whelan RL.  “Radiation injury to large and small bowel.”  Current Surgical Therapy.  Sixth edition. Ed. JL Cameron.  New York:  Mosby Inc., 1998; pp 206-210.
  • Whelan RL, Allendorf JD, Bessler M.  “Minimal access surgery and the biology of cancer.”  Minimal Access Surgery in Oncology.  First Edition. Eds. JG Geraghty, JM Sackier, HL Young. London:  Greenwich Medical Media, 1998; pp 1-16.

Original Articles

  • Dinorcia J, Winner M, Epelboym I, Lee JA, Schrope BA, Chabot JA, Allendorf JD. Neoadjuvant therapy and vascular resection during pancreaticoduodenectomy: shifting the survival curve for patients with locally advanced pancreatic cancer. Submitted for publication, World Journal of Surgery.
  • Gawlas I, Epelboym I, Winner M, DiNorcia J, Woo Y, Lee J, Schrope B, Chabot J, Allendorf J. Short term but not long term patency of venous reconstruction during pancreatic resection predicts survival. Submitted,  Journal of Gastrointestinal Surgery.
  • Epelboym I, Digesu C, Johnston MG, Inabnet W, Chabot J, Allendorf J. Laparoscopic retroperitoneal adrenalectomy can be performed safely in morbidly obese patients. Submitted, World Journal of Surgery.
  • Epelboym I, Winner M, DiNorcia J, Lee MK, Lee JA, Schrope B, Chabot JA, Allendorf J. Quality of life in patients after total pancreatectomy is comparable to quality of life in patients after a partial pancreatic resection. Submitted, World Journal of Surgery.
  • Einersen P, Epelboym I, Winner M, Leung D, Chabot J, Allendorf J. Positron Emission Tomography (PET) has limited utility in preoperative staging of pancreatic adenocarcinoma. Submitted, Annals of Surgical Oncology.  
  • Winner M, Mooney SJ, Hershman DL, Feingold DL, Allendorf JD, Wright JD, Neugut AI.  Incidence and Predictors of Bowel Obstruction in Elderly Stage IV Colon Cancer Patients: A Population-Based Cohort Study. Accepted for publication, JAMA Surgery
  • Winner M, Mooney SJ, Hershman DL, Feingold DL, Allendorf JD, Wright JD, Neugut AI.  Management and Outcomes of Bowel Obstruction in Stage IV Colon Cancer Patients: a Population-Based Cohort Study.  Accepted for publication: Diseases of the Colon and Rectum.
  • Winner M, Epelboym I, Remotti H, Lee JA, Schrope BA, Chabot JA, Allendorf JD. Predictors of recurrence in intraductal papillary mucinous neoplasm: experience with 183 pancreatic resections. Accepted for publication, J Gastrointest Surg
  • Epelboym I, Winner M, Allendorf JD.  MRCP is Not a Cost-Effective Strategy in the Management of Silent Common Bile Duct Stones.  J Gastrointest Surg. 2013 Mar 21. Epub ahead of print.
  • Leinwand JC, Zhao B, Guo X, Krishnamoorthy S, Qi J, Graziano JH, Slavkovic VN, Bates GE, Lewin SN, Allendorf JD, Chabot JA, Schwartz LH, Taub RN.  Quantitative X-ray Computed Tomography Peritoneography in Malignant Peritoneal Mesothelioma Patients Receiving Intraperitoneal Chemotherapy.  Ann Surg Oncol. 2013 May 24. Epub ahead of print
  • Leinwand JC, Bates GE, Allendorf JD, Chabot JA, Lewin SN, Taub RN. Body surface area predicts plasma oxaliplatin and pharmacokinetic advantage in hyperthermic intraoperative intraperitoneal chemotherapy.  Ann Surg Oncol. 20:1101-4, 2013.
  • Fine RL, Gulati AP, Krantz BA, Moss RA, Schreibman S, Tsushima DA, Mowatt KB, Dinnen RD, Mao Y, Stevens PD, Schrope B, Allendorf J, Lee JA, Sherman WH, Chabot JA. Capecitabine and temozolomide (CAPTEM) for metastatic, well-differentiated neuroendocrine cancers: The Pancreas Center at Columbia University experience.  Cancer Chemotherapy & Pharmacology 71:663-70, 2013.
  • Mooney SJ, Winner M, Hershman DL, Wright JD, Feingold DL, Allendorf JD, Neugut AI. Bowel obstruction in elderly ovarian cancer patients: A population-based study. Gynecol Oncol. 129:107-12, 2013.
  • Gawlas I, Sethi M, Winner M, Epelboym I, Lee JL, Schrope BA, Chabot JA, Allendorf JD. Readmission After Pancreatic Resection is not an Appropriate Measure of Quality. Ann Surg Oncol. 20:1781-7, 2013.
  • Jia Y, Wang TJ, Allendorf JD, Saif MW.  Management of borderline resectable pancreatic adenocarcinoma. Journal of the Pancreas 13:147-50, 2012.
  • Winner M, Allendorf JD, Saif MW. An update on surgical staging of patients with pancreatic cancer. Journal of the Pancreas 13:143-6, 2012.
  • DiNorcia J, Lee MK, Moroziewicz DN, Winner M, Suman P, Bao F, Remotti HE, Zou YS, Yan SF, Qiu W, Su GH, Schmidt AM, Allendorf JD.  RAGE gene deletion inhibits the development and progression of ductal neoplasia and prolongs survival in a murine model of pancreatic cancer.  J Gastrointest Surg  16:104-112; 2012.
  • Roy R, Kouniavsky G, Schneider E, Allendorf JD, Chabot JA, Logerfo P, Dackiw AP, Colombani P, Zeiger MA, Lee JA.  Predictive factors of malignancy in pediatric thyroid nodules.  Surgery  150:1228-33, 2011.
  • Li J, Ng J, Allendorf JD, Saif MW.  Locally Advanced Pancreatic Adenocarcinoma: Are We Making Progress? J Pancreas 12:347-350, 2011. 
  • DiNorcia J, Ahmed L, Lee MK, Reavey PL, Yakaitis EA, Lee JA, Schrope BA, Chabot JA, Allendorf JD.  Better preservation of endocrine function following central versus distal pancreatectomy for mid-gland lesions.  Surgery 148:1247-54, 2010.
  • Reimel B, Zanocco K, Russo MJ, Zarnegar R, Clark OH, Allendorf JD, Chabot JA, Duh QY, Lee JA, Sturgeon C.  The management of aldosterone-producing adrenal adenomas--does adrenalectomy increase costs?  Surgery 148:1178-85, 2010.
  • Dinorcia J, Moroziewicz DN, Ippagunta N, Lee MK, Foster M, Rotterdam HZ, Bao F, Zhou YS, Yan SF, Emond J, Schmidt AM, Allendorf JDRAGE signaling significantly impacts tumorigenesis and hepatic tumor growth in murine models of colorectal carcinoma.  J Gastrointest Surg 14:1680-90, 2010.
  • Lee MK, Dinorcia J, Reavey PL, Holden MM, Genkinger JM, Lee JA, Schrope BA, Chabot JA, Allendorf JDPancreaticoduodenectomy can be performed safely in patients aged 80 years and older.  J Gastrointest Surg 14:1838-46, 2010.
  • Lee MK, Dinorcia J, Pursell LJ, Holden MM, Tsai WY, Stevens PD, Goetz N, Grann VR, Chabot JA, Allendorf JDProphylactic pancreatectomy for intraductal papillary mucinous neoplasm does not negatively impact quality of life: A preliminary study.
  • J Gastrointest Surg 14:1847-52, 2010.
  • Dinorcia J, Schrope BA, Lee MK, Reavey PL, Rosen SJ, Lee JA, Chabot JA, and Allendorf JDLaparoscopic distal pancreatectomy offers shorter hospital stays with fewer complications.  J Gastrointest Surg 14:1804-12, 2010.
  • DiNorcia J, Lee MK, Reavey PL, Genkinger JM, Lee JA, Schrope BA, Chabot JA, Allendorf JDOne hundred thirty resections for pancreatic neuroendocrine tumor: evaluating the impact of minimally invasive and parenchyma-sparing techniques.
  • J Gastrointest Surg 14:1536-46, 2010.
  • Moo TA, McGill J, Allendorf JD, Lee J, Fahey TJ, Zarnegar R.  Impact of Prophylactic Central Neck Lymph Node Dissection on Early Recurrence in Papillary Thyroid Carcinoma.  World Journal of Surgery  34:1187-91, 2010.
  • McGill JF, Moo TA, Kato M, Hoda R, Allendorf JD, Inabnet WI, Fahey TJ, Brunaud L, Zarnegar R, Lee JA.  Worldwide what?  The quality of information on parathyroid disease available on the internet.  Surgery 146:1123-1129, 2009.
  • Schönleben F, Qiu W, Allendorf JD, Chabot JA, Remotti HE, Su GH. Molecular analysis of PIK3CA, BRAF, and RAS- Oncogenes in Periampullary and Ampullary Adenomas and Carcinomas.  Journal of Gastrointestinal Surgery 13:1510-1516, 2009. 
  • Harari A, Allendorf JD, Shifrin A,  DiGorgi M, and Inabnet WB.  Negative preoperative localization leads to greater resource use in the era of minimally invasive parathyroidectomy.  American Journal of Surgery 197:769-73, 2009.
  • Allendorf JD, Bellemare S.  Reconstruction of the replaced right hepatic artery at the time of pancreaticoduodenectomy.  Journal of Gastrointestinal Surgery 13: 555-557, 2009.
  • Charlton-Ouw KM, Kaiser CL, Tong GX, Allendorf JD, Chabot JA.  Revisiting metastatic adult pancreatoblastoma.  A case report and review of the literature.  JOP: Journal of the Pancreas 9:733-8, 2008.
  • Schonleben F, Allendorf JD, Qiu W, Li X, Ho DJ, Ciau NT, Fine RL, Chabot JA, Remotti HE, Su GH.  Mutational analysis of multiple oncogenic pathways in intraductal papillary mucinous neoplasms of the pancreas.  Pancreas 36: 168-172, 2008.
  • Allendorf JD, Lauerman M, Bill A, DiGiorgi M, Goetz N, Vakiani E, Remotti H, Schrope B, Sherman W, Hall M, Fine RL, Chabot JA.  Neoadjuvant chemotherapy and radiation for patients with locally unresectable pancreatic adenocarcinoma:  Feasibility, efficacy and survival.  Journal of Gastrointestinal Surgery 12: 91-100, 2008.
  • Allendorf JD.  Oncologic impact of surgery in the early postoperative period.  Seminars in Colorectal Surgery 18: 247-252, 2007.
  • Allendorf JD, DiGiorgi M, Spanknebel K, Inabnet WB, Chabot JC, LoGerfo P.  One thousand, one hundred and twelve consecutive bilateral neck explorations for primary hyperparathyroidism.  World Journal of Surgery 31: 2075-80, 2007.
  • Georges C, Lo T, Alkofer B, Whelan RL, Allendorf JD.  The effects of surgical trauma on colorectal liver metastasis.  Surgical Endoscopy  21: 1817-19, 2007.
  • Suciu-Foca N, Feirt N, Zhang Q, Vlad G, Liu Z, Lin H, Chang C, Ho EK, Colovai AI, Kaufman H, D’Agati VD, Thaker HM, Remotti H, Galluzzo S, Cinti P, Rabitti C, Allendorf JD, Chabot J, Caricato M, Coppola R, Berloco P, Cortesini R.  Soluble Ig-like transcript 3 inhibits tumor allograft rejection in humanized SCID mice and T cell responses in cancer patients.  The Journal of Immunology 178: 7432-7441, 2007.
  • Schönleben F, Qiu W, Bruckman KC, Ciau NT, Li X, Lauerman MH, Frucht H, Chabot JC, Allendorf JD, Remotti HE, Su GH.  BRAF and KRAS Mutations in Intraductal Papillary Mucinous Neoplasm/Carcinoma (IPMN/IPMC) of the Pancreas. Cancer Letters 249:242-8, 2007.
  • Allendorf JD, Schrope BA, Inabnet WB, Chabot JA.  Postoperative Glycemic Control in Patients Undergoing Central Pancreatectomy for Mid-Gland Lesions.  World Journal of Surgery 31:164-8, 2007.
  • Spanknebel K, Chabot JA, DiGiorgi M, Cheung K, Curty J, Allendorf JD, LoGerfo P.  Thyroidectomy using monitored local or conventional general anesthesia: An analysis of outpatient surgery, outcome and cost in 1,194 consecutive cases.  World Journal of Surgery 30: 813-24, 2006.
  • Schonleben F, Qiu W, Ciau NT, Ho DJ, Li X, Allendorf JD, Remotti HE, Su GH.  PIK3CA mutations in intraductal papillary mucinous neoplasm / carcinoma of the pancreas.  Clin Cancer Res 12: 3851-3855, 2006.
  • Spanknebel K, Chabot J, DiGiorgi M, Cheung K, Lee S, Allendorf JD, LoGerfo P.  Thyroidectomy using local anesthesia: a report of 1,025 cases over 16 years.  Journal of the American College of Surgeons  201: 375-385, 2005.
  • Fogelman DR, Chen J, Chabot JA, Allendorf JD, Schrope BA, Ennis RD, Schreibman SM, Fine RL.  The evolution of adjuvant and neoadjuvant chemotherapy and radiation for advanced pancreatic cancer:  From 5-fluorouracil to GTX.  Surgical Oncology Clinics of North America 13: 711-736, 2004.
  • Allendorf JD, Ippagunta N, Emond JC.  Management of liver metastases:  New horizons for biologically based therapy.  Journal of Surgical Research 117: 144-153, 2004.
  • Allendorf JD, Kim L, Chabot J, DiGiorgi M, Spanknebel K, LoGerfo P.  The impact of Sestamibi scanning on the outcome of parathyroid surgery.  The Journal of Clinical Endocrinology & Metabolism 88: 3015-3018, 2003.
  • Rabkin DG, Caiati JM, Allendorf JD, Treat M. Intractable hematochezia: an unusual presentation of intestinal tuberculosis.  Surgery 133:592-3, 2003.
  • Widmann WD, Allendorf JD.  Residency, Fellowships, and Pseudo Fellowships:  Whither General Surgery?  Current Surgery 59: 347-8, 2002.
  • Lee SW, Gleason NR, Southall JC, Allendorf JD, Blanco I, Huang EH, Bessler M, Whelan RL.  A serum soluble factor(s) stimulates tumor growth following laparotomy in a murine model.  Surgical Endoscopy 14: 490-494, 2000.
  • Gleason NR, Blanco I, Allendorf JD, Lee SW, Zhai C, Bessler M, Whelan RL.  Delayed-type hypersensitivity response is better preserved in mice following insufflation than after laparotomy.  Surgical Endoscopy 13:1032-034, 1999.
  • Lee SW, Southall JC, Allendorf JD, Bessler M, Whelan RL.  Tumor proliferative index is higher in mice undergoing laparotomy vs. CO2 pneumoperitoneum. Dis Colon Rectum 42: 477-81, 1999.
  • Allendorf JD, Bessler M, Horvath KD, Marvin MR, Laird DA, Whelan RL.  Increased tumor establishment and growth after open versus laparoscopic surgery in mice may be related to differences in postoperative T cell function.  Surgical Endoscopy 13: 233-5, 1999.
  • Lee S, Gleason N, Zhai C, Allendorf JD, Huang E, Bessler M, Whelan RL.  Increased platelet derived growth factor release after laparotomy stimulates systemic tumor growth in mice.  Surgical Forum 50:333-335, 1999.
  • Wickens JC, Whelan RL, Allendorf JD, Donahue J, Buxton E, McKee A, Panageas K, Gleason N, Lee S, Bessler M.  Wound tensile strength and contraction rate are not affected by laparotomy or pneumoperitoneum.  Surgical Endoscopy 12: 1166-70, 1998.
  • Gutt CN, Kuntz C, Schmandra T, Wunsch A, Heinz P, Bouvy N, Bessler M, Sanger P, Bonjer J, Allendorf JD, Jacobi CA, Whelan RL.  Metabolism and immunology in laparoscopy.  First workshop on experimental laparoscopic surgery, Frankfurt 1997.  Surgical Endoscopy 12: 1096-8, 1998.
  • Whelan RL, Allendorf JD, Gutt CN, Jacobi CA, Mutter D, Dorrance HR, Bessler M, Bonjer HJ.  General oncologic effects of the laparoscopic surgical approach.  1997 Frankfurt international meeting of animal laparoscopic researchers.  Surgical Endoscopy 12: 1092-5, 1998.
  • Allendorf JD, Bessler M, Horvath KD, Marvin MR, Laird DA, Whelan RL. Increased tumor establishment and growth after open versus laparoscopic bowel resection in mice.  Surgical Endoscopy 12: 1035-8, 1998.
  • Lee SW, Southall J, Allendorf JD, Bessler M, Whelan RL.  Traumatic handling of the tumor independent of pneumoperitoneum increases port site implantation rate of colon cancer in a murine model.  Surgical Endoscopy 12: 828-34, 1998.
  • Sellers GJ, Whelan RL, Allendorf JD, Gleason NR, Donahue J, Laird D, Bessler M, Treat MR.  An in vitro model fails to demonstrate aerosolization of tumor cells.  Surgical Endoscopy 12:  436-9, 1998.
  • Southall JC, Lee SW, Bessler M, Allendorf JD, Whelan RL.  The effect of peritoneal air exposure on postoperative tumor growth.  Surgical Endoscopy 12:  348-50, 1998.
  • Southall JC, Lee SW, Allendorf JD, Bessler M, Whelan RL.  Colon adenocarcinoma and B-16 melanoma grow larger following laparotomy vs. pneumoperitoneum in a murine model.  Dis Colon Rectum 41:  564-9, 1998.
  • Allendorf JD, Bessler M, Kayton ML, Treat MR, and Nowygrod R.  Helium-neon laser irradiation at fluences of 1, 2, and 4 J/cm2 failed to accelerate wound healing as assessed by both wound contracture rate and tensile strength.  Lasers in Surgery and Medicine  20: 340-5, 1997.
  • Allendorf JD, Bessler M, Whelan RL, Trokel M, Laird DA, Terry MB, Treat MR. Postoperative immune function varies inversely with the degree of surgical trauma in a murine model. Surgical Endoscopy 11:427-430, 1997.
  • Allendorf JD, Bessler M, Whelan RL.  A murine model of laparoscopic assisted intervention.  Surgical Endoscopy 11:622-624, 1997.
  • Allendorf JD, Bessler M, Whelan RL, Trokel M, Laird DA, Terry MB, Treat MR.  Better preservation of immune function after laparoscopic-assisted versus open bowel resection in a murine model.  Dis Colon Rectum 39 (10 Suppl): S67-S72, 1996.
  • Allendorf JD, Bessler M, Whelan RL, Laird DA, Bertram A, Marvin M, Kim L, Horvath K, Treat MR.  Differences in tumor growth after open versus laparoscopic surgery are lost in an athymic model and are associated with differences in tumor proliferative index.  Surgical Forum 47: 150-152, 1996.
  • Whelan RL, Sellers G, Allendorf JD, Laird DA, Bessler M, Treat MR.  Trocar site recurrence is unlikely to result from aerosolization of tumor cells.  Dis Colon Rectum 39 (10 Suppl): S7-S13, 1996.
  • Moazami N, Bessler M, Argenziano M, Choudhri AF, Cabreriza SE, Allendorf JD, Rose EA, Oz M.  Transluminal aortic valve replacement:  A feasibility study with a newly designed collapsible aortic valve.  ASIAO 42: M381-5, 1996.
  • Bessler M, Whelan RL, Halverson A, Allendorf JD, Nowygrod R, Treat MR.  Controlled trial of laparoscopic-assisted vs open colon resection in a porcine model.  Surgical Endoscopy 10: 732-5, 1996.
  • Allendorf JD, Bessler M, Kayton ML, Oesterling SD, Treat MR, Nowygrod R, Whelan RL.  Increased tumor establishment and growth after laparotomy versus laparoscopy in a murine model.  Archives of Surgery  130; 649-653, 1995.
  • Allendorf JD, Bessler M, Kayton ML, Whelan RL, Treat MR, and Nowygrod R.  Tumor Growth After Laparotomy or Laparoscopy: A Preliminary Study.  Surgical Endoscopy 9: 49-52, 1995.
  • Kayton ML, Libutti SK, Bessler M, Allendorf JD, Eiref SD, Marx G, Mou X, Morales A, Treat MR, and Nowygrod R.  A Comparison of Laser-Activated Tissue Solders and Thrombin-Activated Cryoprecipitate for Wound Closure.  Laser Surgery:  Advanced characterization, therapeutics, and systems, Proceedings of Society of Photo-Optical Instrumentation Engineers  2128: 527-531, 1994.
  • Bessler M, Allendorf JD, Chao J, Oesterling SD, Kayton ML, Treat MR, Nowygrod R, Whelan RL.  Permissive tumor growth after laparotomy versus laparoscopy is associated with altered TNF levels.  Surgical Forum 45: 486-7, 1994.
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