Thomas C. Mahl MD
Thomas C. Mahl
MD
Contact Information
Patient Care
Patient Care
This faculty member is affiliated with UBMD, practicing physicians who are also professors in the Jacobs School.
View this physician on UBMDProfessional Summary:
I have been a member of the faculty at the Jacobs School of Medicine since 1990. Most of my career was spent at the Veterans Affairs Medical Center in Buffalo, NY. My focus for the majority of my career has been hepatology. My emphasis has been on the clinical care of patients, particularly those with hepatic disorders, but I do general GI as well. I have held many hospital and academic administrative positions over the years.
Although research was not my focus, I have published, mostly in the field of liver disease.
Six years ago, I moved from the VA to the Erie County Medical Center where I serve as the Chief of Gastroenterology. I am the Program Director of the GI fellowship program and teach extensively in the medical school first year curriculum.
Education and Training:
- Fellowship, Gastroenterology, Yale University School of Medicine (1990)
- Residency, Internal Medicine, John Dempsey Hospital, University of Connecticut (1987)
- Residency, Internal Medicine, University of Connecticut Affiliated Hospitals (1987)
- Internship, University of Connecticut Affiliated Hospitals (1986)
- MD, University at Buffalo (1984)
- BS, State University of New York College at Oswego (1980)
Employment:
- Fellowship Program Director, Gastroenterology, Hepatology & Nutrition, Medicine, University at Buffalo Jacobs School of Medicine & Biomedical Sciences (2015-present)
- Chief of Gastroenterology, Medicine, VA Western New York Healthcare System (2012-present)
- Professor, University at Buffalo, The State University of New York Jacobs School of Medicine & Biomedical Sciences (2009-present)
- Adjunct Faculty, D'Youville College of Buffalo (1994-present)
- Interim Chief, Division of Gastroenterology, Hepatology & Nutrition, Medicine, University at Buffalo Jacobs School of Medicine & Biomedical Sciences (2014–2016)
- Chief, Medical Service, VA Western New York Healthcare System (2000–2012)
- Interim Chief, Division of Gastroenterology, Hepatology & Nutrition, University at Buffalo Jacobs School of Medicine & Biomedical Sciences (2001–2002)
- Interim Gastroenterology Fellowship Program Director, University at Buffalo Jacobs School of Medicine & Biomedical Sciences (2001–2002)
- Chief, Gastroenterology Section, VA Western New York Healthcare System (1994–2002)
- Director, Western New York Center for Liver Disease (1990–2001)
Awards and Honors:
- Teaching Excellence (2012)
- Segal Award for Teaching - runner-up (2011)
- Segal Award for Teaching (2010)
- Segal Award for Teaching - runner-up (2006)
- Fellow, American Gastroenterological Association (2006)
- Segal Award for Teaching (2005)
- Segal Award for Teaching (2001)
- F. Carter Pannell Award (1993)
Research Expertise:
- Hepatitis C
- Liver disease
Journal Articles:
- Yang K, Nallapeta N, Hossein-Javaheri N, Carlson A, Quigley B, Mahl T. (2025) Predictors and prognosticators of outcomes in alcoholic hepatitis: A retrospective single center study. World journal of hepatology (Feb), 17(2): 102152. doi:10.4254/wjh.v17.i2.102152
- Duve RJ, Moga TG, Yang K, Mahl TC, Dove E. (2023) Hepatic Amyloidosis With Multiorgan Involvement. ACG case reports journal (Apr), 10(4): e00999. doi:10.14309/crj.0000000000000999
- Yang K, Moga T, Nallapeta NS, Duve R, Miranda CJ, Ismail M, Mahl T. (2022) Severe Cholestatic Drug-Induced Liver Injury With Cephalosporin Use. Cureus (Dec), 14(12): e32262. doi:10.7759/cureus.32262
- Miranda CJ, Ali MH, Ayaz M, Soofi Y, Mahl TC. (2022) An Obscure Presence of Gastroduodenal Involvement in a Newly Diagnosed Ileocolonic Crohn's Disease Patient. Case reports in gastrointestinal medicine (Jan), 2022: 2200438. doi:10.1155/2022/2200438
- Rana NK, Minhas U, Mahl T. (2020) A Rare Case of Duodenal Melanosis: Case Report. Cureus (Sep), 12(9): e10475. doi:10.7759/cureus.10475
- Dieringer TD, Crossland DM, Mahl TC. (2018) Rizatriptan-Induced Colonic Ischemia: A Case Report and Literature Review. The American journal of gastroenterology (Jan), 113(1): 148-149.
- Kaur N, Mahl TC. (2007) Pneumocystis jiroveci (carinii) pneumonia after infliximab therapy: a review of 84 cases. Dig Dis Sci (Jun), 52(6): 1481-1484.
- El-Dika S, Mahl T, Mehboob S, Miqdadi J, Heels-Ansdell D, Handley B, Sitrin M, Schunemann H. (2006) Is blinding the endoscopists to bowel preparations in randomized-controlled trials reality?. Cancer Detect Prev (Nov), 30(6): 552-559.
- Lackner JM, Lou Coad M, Mertz HR, Wack DS, Katz LA, Krasner SS, Firth R, Mahl TC, Lockwood AH. (2006) Cognitive therapy for irritable bowel syndrome is associated with reduced limbic activity, GI symptoms, and anxiety. Behav Res Ther (May), 44(5): 621-638.
- Borowitz D, Goss CH, Stevens C, Hayes D, Newman L, O'Rourke A, Konstan MW, Wagener J, Moss R, Hendeles L, Orenstein D, Ahrens R, Oermann CM, Aitken ML, Mahl TC, Young KR, Dunitz J, Murray FT. (2006) Safety and preliminary clinical activity of a novel pancreatic enzyme preparation in pancreatic insufficient cystic fibrosis patients. Pancreas (Apr), 32(3): 258-263.
- El-Dika S, Mahl T, Mehboob S, Miqdadi J, Heels-Ansdell D, Handley B, Sitrin M, Schünemann H. (2006) Is blinding the endoscopists to bowel preparations in randomized-controlled trials a reality?. Cancer detection and prevention (Jan), 30(6): 552-9.
- Kaur N, Mahl TC. (2004) Pneumocystis carinii pneumonia with oral candidiasis after infliximab therapy for Crohn's disease. Dig Dis Sci (Sep), 49(9): 1458-1460.
- Arif A, Levine RA, Sanderson SO, Bank L, Velu RP, Shah A, Mahl TC, Gregory DH. (2003) Regression of fibrosis in chronic hepatitis C after therapy with interferon and ribavirin. Dig Dis Sci (Jul), 48(7): 1425-1430.
- Mahl TC, Ummadi S. (2003) Metronidazole and mental confusion. J Clin Gastroenterol (Apr), 36(4): 373-374.
- Mahl TC. (1998) Approach to the patient with abnormal liver tests. Lippincotts Prim Care Pract (Jul), 2(4): 379-389.
- Mahl TC, Shockcor W, Boyer JL. (1994) Primary biliary cirrhosis: survival of a large cohort of symptomatic and asymptomatic patients followed for 24 years. J Hepatol (Jun), 20(6): 707-713.
- Lockwood AH, Murphy BW, Donnelly KZ, Mahl TC, Perini S. (1993) Positron-emission tomographic localization of abnormalities of brain metabolism in patients with minimal hepatic encephalopathy. Hepatology (Nov), 18(5): 1061-1068.
- Tzung SP, Mahl TC, Lance P, Andersen V, Cohen SA. (1992) Interferon-alpha prevents endotoxin-induced mortality in mice. Eur J Immunol (Dec), 22(12): 3097-3101.
- Boyer JL, Shockcor W, Mahl TC. (1992) The natural history of primary biliary cirrhosis. Trans Am Clin Climatol Assoc (Jan), 103: 157-163.
- Mahl TC, Groszmann RJ. (1990) Pathophysiology of portal hypertension and variceal bleeding. Surg Clin North Am (Apr), 70(2): 251-266.
- Mahl TC. (1989) Biochemical feminization of males with alcohol-induced liver disease. J Gastroenterol Hepatol (Nov), 4(6): 587-589.
Abstracts:
- Shukla S, Picano J, Gudleski G, Mahl T. (2015) Palliative care in decompensated cirrhosis: the VA experience. Am J Gastroenterol, (Oct) S896-S896
- Munjal S, Ku JH, Cheng C, Shukla S, Dimova R, Yoo JN, Keller CE, Ajewole S, Mahl T. (2014) Vitamin D levels are not correlated with hepatitis C RNA levels. Am J Gastroenterol, (Oct) S156-S156
- Munjal S, Dewanwala A, Mahl T. (2014) An unusual case of inflammatory bowel disease (IBD) presenting as phlegmasia cerulea dolens (PCD). Am J Gastroenterol, (Oct) S440-S440
- Shukla S, Munjal S, Dimova RB, Mahl T. (2014) Providing gastroenterology care to rural patients through telemedicine. Gastroenterolgy, (May) S196-S196
- Kaur N., Mahl TC. (2005) Pneumocystis Jiroveci Pneumonia after Infliximab Therapy: A Review of 84 cases. (abstract). Gastroenterology, (Jan) A309
- Lackner JM, Lockwood A., Mahl TC, Krasner S., Katz LA. (2004) Prospective Changes in Blood Flow, Anxiety and GI Symptoms in Irritable Bowel in Patients Treated with Cognitive Therapy. (abstract - . Presented at the 38th Annual Convention of the Association for Advancement of Behavior Therapy. November 2004. ). (Jan)
- Lackner JM, Lockwood A., Coad M.L., Mahl TC, Firth R., Mertz H., Katz LA, Krasner S., Wack D.S., Galantowicz P. (2004) Alterations in GI Symptoms, Psychological Status and Brain Functioning Participation in Cognitive Behavioral Therapy for IBS. (abstract). Gastroenterology, (Jan) A477
- Lackner JM, Lockwood, A., Coad, ML., Mahl TC, Firth, R, Mertz, H., Katz LA, Krasner, S, Wack, D, Galantowicz, P. (2004) Alterations in GI symptoms, psychological status, and brain function following participation in cognitive therapy for IBS. (Poster of Distinction). Gastroenterology, (Jan) A 477
- Lackner JM, Mahl TC, Wilding G.E. (2004) IBS Patients’ Response to Abdominal Pain: Too Sensitive, Too Tough or Both? (abstract). Gastroenterology, (Jan) A481
- Lackner JM, Mahl TC, Wilding, E. (2004) IBS patients’ response to abdominal pain: Too sensitive, too tough, or both? (published abstract). Gastroenterology, (Jan) A480
- Mahl TC. (1996) Fatigue in Patients with Chronic Hepatitis C. (abstract). Gastroenterology, (Jan) A1254
- Mahl TC. (1995) Hetastarch Verses Albumin for Intravascular Volume Support during Large Volume Paracentesis. (abstract). Am J Gastroenterol, (Jan) A283
- Critelli V.L., Lee S.J., Cohen S.A., Mahl TC. (1994) Heat Shock Protein Production from Murine Kupffer Cells. (published abstract). Gastroenterology, (Jan) A879
- Mahl TC, Murphy B.W., Donnelly K.Z., Perini S., Lockwood A.H. (1993) Functional and Cerebral Metabolic Abnormalities in Patients with Compensated Cirrhosis. (abstract). Gastroenterology, (Jan) A948
- Mahl TC, West A.B., Kuo S., Riely C.A., Reuben A. (1992) Methotrexate Hepatotoxicity in Psoriasis (abstract). Gastroenterology, (Jan) A846
- Mahl TC, Tzung S-P, Lance MP, Andersen V., Cohen, S.A. (1992) Prostaglandin E2 Inhibits Tumor Necrosis Factor Production by Kupffer Cells and Prevents Endotoxin Induced Mortality in Mice. (abstract). Gastroenterology, (Jan) A846
- Cohen S.A., Tzung S-P, Lance MP, Andersen V., Mahl TC. (1992) Recombinant Interferon Human Rescues Mice from Endotoxemia. (abstract). Gastroenterology, (Jan) A794
- Mahl TC, Shockcor W., Kuo S., Boyer J.L. (1990) Primary Biliary Cirrhosis - Survival in a Cohort of 279 Patients Followed for 29 Years. (abstract). Gastroenterology, (Jan) A605
Professional Memberships:
- Alpha Omega Alpha
- American Association for the Study of Liver Disease
- American Gastroenterological Association; Fellow
- American Liver Foundation
- Hepatitis B Foundation
- Medical Union of Buffalo, NY
Presentations:
- "Diseases of the Liver" Guest Lecturer, PA Department Clinical Medicine Course, D'Youville College (2017)
- "Hepatitis: Cures and Post-Care" Presenter, UBMD Internal Medicine Annual Primary Care CME Conference; UBMD Internal Medicine (2017)
- "Duodenal Metastases from Primary Large Cell Carcinoma of the Lung Presenting with Melena" Poster presentation, ACG 2016 Annual Meeting; ACG (2016)
- "Understanding Minimally Invasive Surgery: Bariatric, Gastrointestinal and Other Procedures" Presenter, UB Mini Medical School; University at Buffalo (2016)
- "Updates on Hepatitis Treatment" Guest Lecturer, Department of Medicine Grand Rounds, Kenmore Mercy Hospital; Kenmore Mercy Hospital (2016)
- "Abnormal Liver Function Tests" Guest Lecturer, UB Family Medicine Teaching Conference (2016)
- "Diseases of the Liver" Guest Lecturer, PA Department Clinical Medicine Course, D‘Youville College; D‘Youville College (2016)
- "Hepatitis" Guest Lecturer, PA Department Clinical Medicine Course, D'Youville College; D'Youville College (2016)
- "Hepatitis C: The Cure is Here!" Presenter, UBMD Internal Medicine Annual Primary Care CME Conference; UBMD Internal Medicine (2016)
- "Hepatitis" Guest Lecturer, Department of Medicine Grand Rounds, Kenmore Mercy Hospital (2015)
- "Fatty Liver: The Coming Plague" Presenter, UB Mini Medical School; University at Buffalo (2014)
Service Activities:
- Relations with Industry Committee; Chair (2013–present)
- Department of Medicine CME Committee; Member (2012–present)
- Student Progress Committee; Member (2011–present)
- Curriculum Committee; Member (2009–2012)
- LCME Self-Study sub-committee RE: Programs that lead to the MD degree; Chair (2009–2010)
- American Cancer Society Task force on Colorectal Cancer Screening; Moderator (2008–2012)
- Surgical & Invasive Procedures Committee and VAWNY; Member (2008–present)
- Standing Committee on Affiliations, Clinical Affairs & GME; Chair (2007–2010)
- Housestaff Evaluation Committee; Member (2007–present)
- Internal Residency Review Committee; Member (2007–present)
- Ad Hoc Committee on Affirmative Action; Chair (2002–present)
- VAMC of Buffalo, NY Medical Staff Executive Committee; Member (2001–present)
- Alpha Omega Alpha Executive Committee; Member (2000–present)