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Dr. ⁨Craig Lammert⁩

Dr. ⁨Craig Lammert⁩Verified memberMD, MCTS

Associate Professor of Medicine & Executive Director, Autoimmune Hepatitis Association | Gastroenterologist & Hepatologist

Indiana University School of MedicineIndianapolis, INORCID 0000-0003-3809-640X
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About

Dr. Craig Lammert is an Associate Professor of Medicine in the Division of Gastroenterology and Hepatology at Indiana University School of Medicine. He is a practicing gastroenterologist and hepatologist at IU Health and Eskenazi Health, with a clinical and research focus on autoimmune liver diseases, including autoimmune hepatitis, primary biliary cholangitis, and primary sclerosing cholangitis. Dr. Lammert is the founder and Executive Director of the Autoimmune Hepatitis Association and leads NIH-funded research into the genetic and environmental risk factors underlying autoimmune hepatitis. He has authored numerous peer-reviewed publications and is an active member of the International Autoimmune Hepatitis Group and AASLD.

Areas of focus

Gastroenterology and HepatologyAutoimmune hepatitisPrimary biliary cholangitisPrimary sclerosing cholangitisDrug-induced liver injuryGenetic and environmental risk factors for liver diseasePatient advocacy and engagement in researchGut microbiota and liver diseaseSocial media and digital cohort research methods

Experience & education

Associate Professor of Medicine · Indiana University School of Medicine

Department of Medicine, Division of GI & Hepatology

2015 — Present

Executive Director & Founder · Autoimmune Hepatitis Association

2015 — Present

Attending, GI/Hepatologist · IU Health

2014 — Present

Attending, GI/Hepatologist · Eskenazi Health

2014 — Present

Attending, GI/Hepatologist · Richard Roudebush VAMC

2014 — 2018

Instructor of Medicine · Indiana University School of Medicine

Department of Medicine, Division of GI & Hepatology

2015 — 2015

M.C.T.S. · Mayo Clinic

Rochester, MN

2014

GI Fellowship · Mayo Clinic

Rochester, MN

2013

Internal Medicine Residency · Emory University

Atlanta, GA

2010

M.D. · Indiana University School of Medicine

2007

M.S. · Indiana University-Purdue University Indianapolis (IUPUI)

2004

B.S. · Purdue University

2002

Publications

Bidirectional Psychosocial Burden in Autoimmune Hepatitis: Mental Health, Caregiver Strain, and the Potential Role of Patient Advocacy Programming.

Gentry, Elizabeth, Montero, Anne Mary, Blessing, Nadia, Apolzan-Smith, Megan, Green, Kelsey, Woods, Mackenzie, et al. · Digestive diseases and sciences · 2026PubMed

Safety and efficacy of zetomipzomib in relapsed or insufficiently responding autoimmune hepatitis: Results from the randomized, double-blind, placebo-controlled, phase 2a PORTOLA study and open-label extension.

Lammert, Craig S, Weinberg, Ethan M, Sclair, Seth N, Fontana, Robert J, Anand, Neel K, Anderl, Janet L, et al. · Hepatology (Baltimore, Md.) · 2026PubMed

Rituximab as Salvage Therapy in Difficult-to-Treat Autoimmune Hepatitis: A Prospective Case Series.

Lammert, Craig, Blessing, Nadia, Arif, Maaz, Minnaganti, Divya, Weber, Regina, Green, Kelsey, et al. · Gastro hep advances · 2026PubMed

Impact of Type 2 Diabetes Mellitus on Liver Fibrosis and Hepatic Steatosis in Patients with Primary Biliary Cholangitis: A Longitudinal Study.

Williams, Elizabeth E, Lammert, Craig, Vuppalanchi, Raj · Digestive diseases and sciences · 2026PubMed

Gaps in Guideline Adherence for Primary Sclerosing Cholangitis in North America-A 5-Year Analysis.

Martins, Adrielly, Reddy, Anish, Dean, Richard, Gordon, Stuart C, Pratt, Daniel, Li, Michael, et al. · Liver international : official journal of the International Association for the Study of the Liver · 2026PubMed

Pruritus Is Frequent and Persistent and Impacts Quality of Life Among Patients With Primary Sclerosing Cholangitis.

Dean, Richard, Yazdanfar, Maryam, Zepeda, Joseph, Patel, Isha J, Levy, Cynthia, Lammert, Craig, et al. · Alimentary pharmacology & therapeutics · 2026PubMed

Incidence of Possible Drug-induced Liver Injury Due to Commonly Implicated Agents in the United States.

Lammert, Craig, Teal, Evgenia, Ghabril, Marwan, Chalasani, Naga · Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2025PubMed

Autoimmune Hepatitis and the Pathways and Targets for Therapies.

Wentworth, Brian J, McGrath, Mary, Khanna, Sahil, Lammert, Craig · The American journal of gastroenterology · 2025PubMed

Low socioeconomic status exacerbates unmet health-related needs in patients with autoimmune hepatitis.

Singleton, Carolyn, Carter, Allie, Baker, Brittany, Jones, Emma, Green, Kelsey, Lammert, Craig, et al. · Alimentary pharmacology & therapeutics · 2024PubMed

Distinction of autoimmune hepatitis from drug-induced autoimmune like hepatitis: The answer lies at the interface.

Alkashash, Ahmad, Zhang, Xin, Vuppalanchi, Raj, Lammert, Craig, Saxena, Romil · Journal of hepatology · 2024PubMed

Autoimmune hepatitis: Current and future therapies.

Reau, Nancy S, Lammert, Craig S, Weinberg, Ethan M · Hepatology communications · 2024PubMed

A polygenic risk score for alcohol-associated cirrhosis among heavy drinkers with European ancestry.

Schwantes-An, Tae-Hwi, Whitfield, John B, Aithal, Guruprasad P, Atkinson, Stephen R, Bataller, Ramon, Botwin, Greg, et al. · Hepatology communications · 2024PubMed

Primary Sclerosing Cholangitis Limited to Intrahepatic Bile Ducts Has Distinctly Better Prognosis.

Are, Vijay S, Gromski, Mark A, Akisik, Fatih, Vilar-Gomez, Eduardo, Lammert, Craig, Ghabril, Marwan, et al. · Digestive diseases and sciences · 2024PubMed

Thirty-Day Readmissions Are Largely Not Preventable in Patients With Cirrhosis.

Orman, Eric S, Desai, Archita P, Ghabril, Marwan S, Nephew, Lauren D, Patidar, Kavish R, Holden, John, et al. · The American journal of gastroenterology · 2024PubMed

PROMIS Profile-29 is a valid instrument with distinct advantages over legacy instruments for measuring the quality of life in chronic liver disease.

Desai, Archita P, Madathanapalli, Abhishek, Tang, Qing, Orman, Eric S, Lammert, Craig, Patidar, Kavish R, et al. · Hepatology (Baltimore, Md.) · 2023PubMed

On Inedsys

IgG4 Related Liver Disease: Current Management Options

Grand Round·Advances in Liver Disease & Transplant Symposium 2026·Oct 2026

Connect

ORCIDLinkedInaihep.org/