Division of Gastroenterology and Hepatology
Welcome to the Division of Gastroenterology and Hepatology
The Division of Gastroenterology and Hepatology evaluates and treats adult patients with all common as well as complex gastrointestinal problems and offers a full range of state-of-the-art diagnostic and therapeutic procedures.
The division consists of full-time gastroenterologists with significant expertise in various GI and liver disorders. Each physician is committed to providing excellent clinical care to our patients.
Areas of Expertise
- Anemia
- Biliary disease
- Celiac disease (gluten-sensitive enteropathy)
- Cirrhosis
- Colon cancer prevention
- Colon polyps
- Endoscopic Ultrasound for assessment of gallstones, gastrointestinal cancer, and biliary and pancreatic cancers
- ERCP to evaluate and treat common bile duct stones, bile duct abnormalities, biliary diseases, and pancreatic duct abnormalities and pancreatic disorders
- Esophageal disease, including motility (swallowing) disorders, gastroesophageal reflux disease (GERD), Barrett’s esophagus and esophageal cancer
- Fatty Liver Disease (NAFLD and NASH)
- Gastritis
- Gastrointestinal bleeding
- Hepatitis (Hepatitis C; Hepatitis B; and Autoimmune Hepatitis)
- Inflammatory Bowel Disease—Crohn’s Disease and Ulcerative Colitis
- Interventional Endoscopy for gallstone removal and treatment of biliary and pancreatic strictures
- Obesity (endoscopic approaches to treating obesity, i.e., endoscopic bariatric surgery)
- Pancreatic cancer evaluation
- Pancreatitis
- Peptic ulcer disease and helicobacter pylori
- Pre- and post-liver transplant care
- Primary biliary cholangitis and primary sclerosing cholangitis
- Stomach cancer evaluation
Steve R. Brant, MD
Chief, Division of Gastroenterology and Hepatology
Gastrointestinal Solutions
Browse Our Programs and Meet Our Providers
The Division of Gastroenterology and Hepatology evaluates and treats common and complex gastrointestinal problems, and offers a full range of state-of-the-art diagnostic and therapeutic programs. Our providers possess a wide area of expertise in the field and would be happy to help diagnose and treat your condition.
Fellowship Details
Advance Your Career
The Gastroenterology Fellowship Program aims to prepare our fellows to be competent and caring physicians and give them the skills to incorporate new knowledge and methods into their practice. Visit the Gastroenterology Fellowship Program page for details on how to apply.
Overview
Division research interests are focused on inflammatory bowel diseases, liver disorders, pancreaticobiliary diseases, and interventional endoscopy. This includes clinical trials, cost-effectiveness modeling, the pathogenesis of diseases, and mucosal immunology.
Accordion Content
-
- Patel AH, Benias P, Ma M, Trindade AJ. Rescue cholangioscopy using a novel ultra-flexible cholangioscope for a tortuous cystic duct stump calculus. Endoscopy. 2026 Sep;58(S 04):E971-E972. doi: 10.1055/a-2936-4171. Epub 2026 Aug 25. PMID: 42641616; PMCID: PMC13544982.
- Trindade AJ, Benias PC. Endoscopic resection in early Barrett's esophagus-associated adenocarcinoma: does a universal endoscopic submucosal dissection approach make the cut? Endoscopy. 2026 May;58(5):454-455. doi: 10.1055/a-2771-3598. Epub 2026 Jan 13. PMID: 41529722.
- Bussetty A, Ma M, Trindade AJ, Patel A, Benias P. Endoscopic management of a giant ampullary cyst causing acute pancreatitis. Endoscopy. 2026 Mar;58(S 01):E13-E14. doi: 10.1055/a-2740-3403. Epub 2026 Jan 13. PMID: 41529707; PMCID: PMC12799312.
- Singh DM, Trindade AJ. Strategies to prevent Barrett's esophagus associated esophageal adenocarcinoma. World J Gastroenterol. 2025 Oct 21;31(39):108853. doi: 10.3748/wjg.v31.i39.108853. PMID: 41180794; PMCID: PMC12576553.
- Shah N, Pelton M, Patel AV, Chandler TM. Rapid Development of Giant Esophageal Pseudodiverticulosis. Am J Gastroenterol. 2025 Nov 1;120(11):2478. doi: 10.14309/ajg.0000000000003478. Epub 2025 Apr 8. PMID: 40197349.
- Shah N, Ali MA, Patel AV. Cutaneous metastases of colon adenocarcinoma. Dig Liver Dis. 2025 Feb;57(2):636-637. doi: 10.1016/j.dld.2024.10.017. Epub 2024 Nov 8. PMID: 39521671.
- Bussetty A, Shah N, Chandler TM, Ghattu M, Kesavarapu K. Current and Future Implications of Weight Loss Drugs on Liver Disease. Clin Liver Dis. 2025 Nov;29(4):743-753. doi: 10.1016/j.cld.2025.06.005. Epub 2025 Jul 30. PMID: 41109700.
- Visaria A, Corsi D, Patel D, Kesavarapu K, Halm EA, Carson J, Setoguchi S. Lancet Definition vs Other Criteria for Obesity Diagnosis in Adults. JAMA Netw Open. 2026 Aug 3;9(8):e2627738. doi: 10.1001/jamanetworkopen.2026.27738. PMID: 42566219; PMCID: PMC13451974.
- Bussetty A, Shen J, Benias PC, Ma M, Stewart M, Trindade AJ. Incidence of Pancreas and Colorectal Adenocarcinoma in the US. JAMA Netw Open. 2025 Apr 1;8(4):e254682. doi: 10.1001/jamanetworkopen.2025.4682. PMID: 40227685; PMCID: PMC11997727.
- Pelton M, Bussetty A, Abdel-Meguid S, Clement H, Mazzaferro N, Park TY, Jagpal S, Vélez C, Kesavarapu K. Constipation is Associated With Increased Hospital Utilization in Cystic Fibrosis: A National Inpatient Sample Analysis. Gastro Hep Adv. 2025 Feb 8;4(6):100640. doi: 10.1016/j.gastha.2025.100640. PMID: 40487277; PMCID: PMC12138891.
- Pelton M, Abdel-Meguid S, Goradia E, Bussetty A, Cohen D, Kesavarapu K. Role of Nutrition in the Management of Chronic Liver Disease. Gastro Hep Adv. 2025 Jan 2;4(5):100613. doi: 10.1016/j.gastha.2024.100613. PMID: 40256313; PMCID: PMC12005925.
- Elmassry MM, Sugihara K, Chankhamjon P, Kim Y, Camacho FR, Wang S, Sugimoto Y, Chatterjee S, Chen LA, Kamada N, Donia MS. A meta-analysis of the gut microbiome in inflammatory bowel disease patients identifies disease-associated small molecules. Cell Host Microbe. 2025 Feb 12;33(2):218-234.e12. doi: 10.1016/j.chom.2025.01.002. PMID: 39947133; PMCID: PMC12268991.
- Chen LA, Boyle K. The Role of the Gut Microbiome in Health and Disease in the Elderly. Curr Gastroenterol Rep. 2024 Sep;26(9):217-230. doi: 10.1007/s11894-024-00932-w. Epub 2024 Apr 20. PMID: 38642272; PMCID: PMC11282161.
- Khrom M, Long M, Dube S, Robbins L, Botwin GJ, Yang S, Mengesha E, Li D, Naito T, Bonthala NN, Ha C, Melmed G, Rabizadeh S, Syal G, Vasiliauskas E, Ziring D, Brant SR, Cho J, Duerr RH, Rioux J, Schumm P, Silverberg M, Ananthakrishnan AN, Faubion WA, Jabri B, Lira SA, Newberry RD, Sandler RS, Xavier RJ, Kugathasan S, Hercules D, Targan SR, Sartor RB, Haritunians T, McGovern DPB. Comprehensive Association Analyses of Extraintestinal Manifestations in Inflammatory Bowel Disease. Gastroenterology. 2024 Jul;167(2):315-332. doi: 10.1053/j.gastro.2024.02.026. Epub 2024 Mar 13. PMID: 38490347; PMCID: PMC11193636.
- Pimpinelli M, Bhurwal A, Pimpinelli S, Mutneja H, Minacapelli CD, Attar B, Bansal V, Chen LA, Brant S, Seril DN. The prevalence and impact of psychiatric comorbidities on hospitalized inflammatory bowel disease patients in the United States: insights from the National Inpatient Sample from 2009-2018. Ann Gastroenterol. 2024 Mar-Apr;37(2):192-198. doi: 10.20524/aog.2024.0866. Epub 2024 Feb 10. PMID: 38481776; PMCID: PMC10927625.
- Lodhia N, Stein E. Concise Commentary: RAIR Yet Well Done-Documenting a High Incidence of Anorectal Dysfunction in Patients with Chronic Constipation. Dig Dis Sci. 2024 Jan;69(1):189-190. doi: 10.1007/s10620-023-08188-6. Epub 2023 Nov 28. PMID: 38015323
- He P, Stein E. The Microbiome and Esophageal Disease: Where Are We Now? Curr Gastroenterol Rep. 2026 May 14;28(1):19. doi: 10.1007/s11894-026-01044-3. PMID: 42132964; PMCID: PMC13176034
-
- In H, Rana B, Dalal I, Kesavarapu K, Patel AV et al. Diagnostic Yield of Opportunistic EGD: Results from the Pilot Screen Trial. DDW 2026.
- Bussetty A, Patel AH, Ma M, Trindade AJ, Benias PC. Evaluating Trends in Gastric Cancer Incidence in the United States: A SEER Cancer Database Analysis. DDW 2026.
- Wilson N, Cotton C, Iyer P, Trindade AJ et al. Cryotherapy is Effective for Patients with Persistent Dysplastic Barrett's Esophagus after Radiofrequency Ablation Therapy: A Prospective Multicenter Study. DDW 2026.
- Stein E, Boyle K, Goodman M, Patel AV et al. Moving the Needle: Reducing Hospital IV PPI Usage with Educational Interventions. DDW 2026.
- Mallangada N, Patel AV. A Case of Large Vessel Giant Cell Arteritis Presenting With Abdominal Pain, Constipation, and Unintentional Weight Loss. ACG 2025.
- Chandler TM, Benias P. Autoamputation of a Giant Colonic Lipoma. ACG 2025.
- Reddy N, Wang A, Visaria A, Pelton M, Kesavarapu K. Risk Factors for 30-Day All-Cause Readmission in Microscopic Colitis. ACG 2-25.
- Mallangada N, Patel AV. Acute Esophageal Necrosis in the Setting of Acute Gastric Volvulus ACG 2025.
- Pimpinelli S, Sheth M, Patel AV. CVID-Associated Colitis Presenting as Chronic Diarrhea and Mimicking IBD. ACG 2025
- Jo S, Hudacko R, Patel AV. Acute Severe Autoimmune Hepatitis – Prompt Recognition and Glucocorticoid Therapy. ACG 2025.
- Bussetty A, Vemulapalli B, Kesavarapu K. Evaluating Surgical, Radiologic and Endoscopic PEG Tube Outcomes: A National Inpatient Sample Analysis. ACG 2025.
- Bussetty A, Scheiner D, Reddy N, Wang A, Chen A, Kesavarapu K. Assessing the Risk of Recurrent Pancreatitis in Patients on GLP-1 Agonists. ACG 2025.
- Lee J, Ma M, Trindade AJ, Benias P. Harnessing Single-Balloon ERCP to Address Biliary Pathology in Patients With Altered Anatomy. ACG 2025.
- Wang A, Zhuo J, Lalos A, Patel AV. Analysis of Primary Care Referrals for Patients With Metabolic Dysfunction-Associated Steatotic Liver Disease: Identifying High Risk Patients ACG 2025.
- Sheth M, Pimpinelli S, Patel AV. Small Bowel Lymphangioma: An Unexpected Source of Bleeding. ACG 2025.
- Patel A, Bussetty A, Shen J, Patel AV. Outcomes following Intermittent vs Continuous Proton Pump Inhibitor therapy in Critically Ill Patients with Upper Gastrointestinal Bleed. DDW 2025.