
Leonard H. Calabrese DO
Professor, Medicine, Case Western Reserve University School of Medicine
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9500 Euclid AveCleveland, OH 44195
Phone+1 800-223-2273
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Education & Training
Cleveland Clinic FoundationFellowship, Rheumatology, 1978 - 1980
Cleveland Clinic FoundationResidency, Internal Medicine, 1975 - 1978
Kansas City University of Medicine and Biosciences College of Osteopathic MedicineClass of 1975
John Carroll UniversityB.S., 1971
Certifications & Licensure
OH State License 2015 - 2027
PA State License 1977 - 1982
American Board of Internal Medicine Rheumatology
Awards, Honors, & Recognition
- CMS Meaningful Use Stage 2 Certification Beacon Oncology 2014 Certified Module, Epic Systems Corporation, 2012, 2014-2017
- CMS Meaningful Use Stage 2 Certification EpicCare Ambulatory 2014 Certified EHR Suite, Epic Systems Corporation, 2012, 2014-2017
- CMS Meaningful Use Stage 1 Certification EpicCare Ambulatory - Core EMR, Epic Systems Corporation, 2012, 2014-2017
Clinical Trials
Publications & Presentations
PubMed
- 1 citationsEffectiveness of Nirmatrelvir/Ritonavir or Molnupiravir Use in Immunocompromised Patients on B-Cell-Depleting Therapy With COVID-19: A Target Trial Emulation Study.Cassandra Calabrese, Yifan Wang, Abhijit Duggal, Shuaiqi Huang, Yiying Fan
Clinical Infectious Diseases. 2026-02-04 - Target Trial Emulation of Oral Antivirals for B-Cell-Depleted COVID-19 Patients-Reply to Chen et al.Xiaofeng F Wang, Cassandra Calabrese, Leonard Calabrese
Clinical Infectious Diseases. 2026-01-09 - 1 citationsThe National Academies' 2024 Diagnostic Criteria for Long COVID: Concerns That Could Affect the Rheumatology Community.Leonard H Calabrese, Michael Putman, Jeffrey A Sparks, Zachary Wallace, Alfred H J Kim
Arthritis & Rheumatology. 2025-07-01
Journal Articles
- Vasculitis as a Major Morbidity Factor in Patients with Partial RAG DeficiencyJocelyn R Farmer, Meredith A Dilley, Kevin Byram, Leonard H Calabrese, Jolan E Walter, Frontiers in Immunology
- Physician Empathy Is Not Associated with Laboratory Outcomes in Diabetes: A Cross-Sectional StudyLeonard Calabrese, Alexander Chaitoff, Journal of General Internal Medicine
- Chronic Meningitis Investigated via Metagenomic Next-Generation SequencingLuke Strnad, Leonard H Calabrese, John P Betjemann, Maulik P Shah, Felicia C Chow, Mark P Gorman, John E Greenlee, Michael R Wilson, Megan B Richie, Whitney Harrington..., JAMA
Books/Book Chapters
Abstracts/Posters
- Primary angiitis of the central nervous systemCalabrese LH, Mallek JA, Report of 8 new cases, review of the literature, and proposal for diagnostic criteria. Medicine, Baltimore, MD, 1/1/1988
- Autoimmune Meniere's syndromeHughes GB, Kinney SE, Barna BP, Calabrese LH, Immunology, Autoimmunity and Transplantation in Otorhinolaryngology: proceedings of the First International Conference in Immunology and Immunopathology as Applied to Otology and Rhinology, Utrecht, the Netherlands, 1/11/1984
Lectures
- 6th Annual Advanced Management Issues in HIV Medicine: Focus on Hepatitis C VirusCleveland Clinic - Cleveland, Ohio / The Cleveland Clinic Foundation, Cleveland, Ohio - 5/30/2013
- Biologic Therapies V SummitCleveland Clinic - Cleveland, Ohio / The Cleveland Clinic Foundation, Cleveland, Ohio - 5/2/2013
Other
- Cycling CD4+ T Cells in HIV-Infected Immune Nonresponders Have Mitochondrial DysfunctionLeonard Calabrese, DO, The Journal of Clinical Investigation
https://www.doximity.com/articles/bbc84a5c-1d22-4b6e-a2c1-7362025dead8
UpToDate, Wolters Kluwer Health - 2012-04-18
Authored Content
- #ACR19: A New Way to Take in an International MeetingNovember 2019
- #ACR19: A New Way to Take in an International MeetingNovember 2019
Press Mentions
Lifestyle eCoaching Shows Promise for PsA-Related Mental Health NeedsDecember 2nd, 2025
AI’s Ubiquity in Health Care, Use at Point of Care ‘No Longer a Distant Concept’September 8th, 2025
Rheumatologists ‘Obliged’ to Stay up to Date on Infection Prevention StrategiesAugust 22nd, 2025
Professional Memberships
- Member
- Fellow
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