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Robert Homer, MD, PhD

Professor of Pathology and of Medicine (Pulmonary); Director of Medical Studies, Anatomic Pathology

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Robert Homer, MD, PhD

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Historically, my major interests have been in diagnostic and experimental lung pathology. I was lead thoracic pathologist at Yale from 2004 to 2022 and have experience in diagnosing and classifying the full range of histopathology of clinical lung disease. I was also Director of Anatomic Pathology at VA Connecticut HealthCare system (aka the West Haven VA) from 1994 to 2022.

My PhD was on aspects of the murine MHC. My post doctoral fellowship was with Richard Flavell on development of T cell tolerance. Since then, I have helped evaluate various murine models of inflammatory lung disease, ran an NIH funded morphology core for the Yale pulmonary section, and ran a basic laboratory at West Haven VA looking at murine models of pulmonary fibrosis. I now mostly consult on various experimental models of lung disease and work with collaborators analyzing human fibrotic and neoplastic disease.

I am heavily involved in medical school curriculum development as Director of Medical Education for Pathology. I am Co-Director of the pre-clerkship YSM course Attacks and Defenses (covering immunology, infectious disease, microbiology, rheumatology and dermatology). One of my major current interests is exploring use of Large Language Models in medical education.

Education & Training

  • Resident
    Yale-New Haven Hospital (1992)
  • PhD
    Yale University (1987)
  • MD
    Yale University (1987)


  • From Bots to Docs, Harnessing AI in the medical education journey
    Chicago, IL, United States 2023
    Association of Pathology Chairs, Undergraduate Medical Education Section

Honors & Recognition

AwardAwarding OrganizationDate
Keynote addressPulmonary Pathology Society2009

Professional Service

APC Advocacy committee, Association of Pathology ChairsAcademically-focused advocacy objectives in education, practice and research.2023 - 2025
American Journal of PathologyEditorial Board Member2023 - 2026

Departments & Organizations