Director, GI Endoscopy
UMMC, Room N3W62
Education and Training
1986 B.S., Zoology, University of Maryland College Park, Maryland (Cum Laude)
1990 M.D., University of Maryland School of Medicine
Post Graduate Education and Training
1990-1991 Internship, Internal Medicine, University of Maryland School of Medicine
1991-1993 Residency, Internal Medicine, University of Maryland School of Medicine
1993-1995 Fellowship, Gastroenterology, University of Maryland School of Medicine
Dr. Darwin’s clinical focus is endoscopy, allowing for both the diagnosis and therapy of GI disorders. He performs Endoscopic Retrograde CholangioPancreatography (ERCP), Spyglass cholangioscopy and Endoscopic Ultrasound (EUS) for the diagnosis and treatment of bile duct stones, cancer of the pancreas and bile ducts, evaluation of jaundice, acute and chronic pancreatitis with complications and benign/inflammatory bile duct strictures. EUS is also utilized for staging of esophageal, gastric and rectal cancers, evaluation of submucosal lesions, fine needle aspiration to obtain tissue and EUS directed therapy. Dr. Darwin performs upper endoscopy and colonoscopy for removal of difficult polyps, control of bleeding and enteral stenting. Dr. Darwin also performs balloon enteroscopy, a method employed to allow access and therapy to the distal small intestine.
Dr. Darwin’s research stems from his endoscopic focus. The most recent projects include evaluation of different needle types for liver biopsy, limiting radiation exposure during ERCP and evaluation of neuroendocrine tumors of the pancreas. Additional projects and clinical efforts are done in conjunction with the UMMS multi-disciplinary GI oncology board for both GI and liver cancers.
Uradomo L, Goldberg E, Darwin P. Time-limited fluoroscopy to reduce radiation exposure during ERCP: a prospective randomized trial, Gastrointestinal Endoscopy 2007; 66:84-9.
Uradomo L, Darwin P. Evaluation of subepithelial abnormalities of the appendix by endoscopic ultrasound. Diagn Ther Endosc 2009 Nov 12: 295379.
Darwin P, Goldberg E, Uradomo L. Jackson Pratt fluid to serum bilirubin concentration ratio for the diagnosis of bile leaks. Gastrointestinal Endoscopy 2010;71(1):99-104.
Laczek J, Flaser M, Goldberg E, Darwin P. Contrast does not affect cholangioscope image quality. Gut Liver 2011; Mar 5(1):116-6.
Sharaiha RZ, Tyberg A, Khashab MA, Siddiqui UD, Darwin P, et. al. Endoscopic therapy with lumen-apposing metal stents is safe and effective for patients with pancreatic walled-off necrosis. Clin Gastroenterol Hepatol. 2016 May 14.pii: S1542-3565(16)30196-3.
Professional Society Membership
1992-2013: American College of Physicians
1998-present: American Society for Gastrointestinal Endoscopy
2001- 2014: AmericanCollege of Gastroenterology
2004-present: Maryland Society of Gastrointestinal Endoscopy
Honors and Awards
1985: Provost Scholar, University of MarylandCollege Park
1998-2013: Fellow of the American College of Physicians
2004-2009: Teaching Commendation in Pathophysiology and Therapeutics II, UMSOM
2008: Fellow of the American Society of GI Endoscopy
2008, 2012, 2013: “Baltimore’s Best” Gastroenterologist, Baltimore Magazine
2008: Certificate of Teaching Excellence in Functional Systems Small Group, UMSOM
2011, 2012: Super Doctor – Gastroenterologist, Super Doctors Washington Post