Leonard Calabrese, DO

Leonard H. Calabrese, DO, heads Cleveland Clinic's Section of Clinical Immunology and manages its Clinical Immunology Clinic. He specializes in diseases of the immune system -- in particular, immunodeficiency diseases, such as human immunodeficiency virus (HIV) and other chronic viral infections, which are the subject of both clinical care and investigation. Dr. Calabrese is also Co-director of the Center for Vasculitis Care and Research and has a particular interest in vascular inflammatory disease of the central nervous system.

A graduate of the Kansas City University of Medicine and Biosciences , Dr. Calabrese performed his internal medicine training at Cleveland Clinic in Ohio, followed by a fellowship in rheumatic and immunologic disease. He has been a staff member in Cleveland Clinic's Department of Rheumatic and Immunologic Diseases since 1980.

Recipient of numerous awards and honors, Dr. Calabrese has received an honorary Doctorate of Humane Letters from the Kansas City University of Medicine and Biosciences, the Phillips Medal of Public Service from the Ohio University College of Osteopathic Medicine, the Bruce Hubbard Stewart Award for humanitarianism and Leonard Tow Humanitarianism in Medicine award from the Arnold P Goldman MD Foundation. He holds the R.J. Fasenmeyer Chair of Clinical Immunology and is the director of the RJ Fasenmyer Center for Clinical Immunology. When he was awarded the Theodore F. Classen, DO Chair in Osteopathic Research and Education in 2008 he became the first dual-chair holder in Cleveland Clinic history.

Dr. Calabrese is a member of many professional societies, including the American Association of Immunology, Clinical Immunology Society and the International AIDS Society and the American Osler Society. He is a fellow of the American College of Rheumatology, American College of Physicians and the American College of Sports Medicine.

Dr. Calabrese has lectured nationally and internationally on the subjects of HIV, immunology and rheumatology and is the author of more than 300 published peer-reviewed articles, book chapters and reviews.

Education & Professional Highlights

Appointed
1980

Education & Fellowships

Fellowship - Cleveland Clinic
Immunologic Disease
Cleveland, OH USA
1980

Residency - Cleveland Clinic
Internal Medicine
Cleveland, OH USA
1978

Internship - Cleveland Clinic
Internal Medicine
Cleveland, OH USA
1976

Medical Education - Kansas City University of Medicine and Biosciences University of Health Sciences
Kansas City, MO USA
1975

Undergraduate - John Carroll University
University Heights, OH USA
1971

Professional Highlights

R.J. Fasenmeyer Chair of Clinical Immunology
Theodore F. Classen, DO Chair in Osteopathic Research and Education

Certifications

Internal Medicine
Internal Medicine - Rheumatology

Specialty Interests

Vasculitis, HIV/AIDS, Rhematic aspects of viral infections Vasculitis, HIV/AIDS, Hepatitis C

Awards & Honors

Honorary Doctorate of Humane Letters, Kansas City University of Medicine and Biosciences
Bruce Hubbard Stewart Award for humanitarianism
Phillips Medal of Public Service, Ohio University

Memberships

American College of Physicians
American College of Rheumatology
American Osler Society
Clinical Immunology Society

Research & Publications

See publications for Leonard Calabrese, DO.

(Disclaimer: This search is powered by PubMed, a service of the U.S. National Library of Medicine. PubMed is a third-party website with no affiliation with Cleveland Clinic.)

Industry Relationships

Cleveland Clinic physicians and scientists may collaborate with the pharmaceutical or medical device industries to help develop medical breakthroughs or provide medical expertise or education. Cleveland Clinic strives to make scientific advances that will benefit patient care and support outside relationships that promise public benefit. In order for the discoveries of Cleveland Clinic physicians' and scientists' laboratories and investigations to benefit the public, these discoveries must be commercialized in partnership with industry. As experts in their fields, Cleveland Clinic physicians and scientists are often sought after by industry to consult, provide expertise and education.

To assure professional and commercial integrity in such matters, Cleveland Clinic maintains a program that reviews these collaborations and, when appropriate, puts measures in place to minimize bias that may result from ties to industry. Cleveland Clinic publicly discloses the names of companies when (i) its physicians/scientists receive $5,000 or more per year (or, in rare cases, equity or stock options) for speaking and consulting, (ii) its physicians/scientists serve as a fiduciary, (iii) its physicians/scientists receive or have the right to receive royalties or (iv) its physicians/ scientists hold any equity interest for the physician's/scientist's role as inventor, discoverer, developer, founder or consultant.* In publicly disclosing this information, Cleveland Clinic tries to provide information as accurately as possible about its physicians' and scientists' connections with industry.

As of 3/9/2022, Dr. Calabrese has reported the financial relationships with the companies listed below. In general, patients should feel free to contact their doctor about any of the relationships and how the relationships are overseen by Cleveland Clinic. To learn more about Cleveland Clinic's policies on collaborations with industry and innovation management, go to our Integrity in Innovation page.

Consulting and/or Speaking. Dr. Calabrese receives fees of $5,000 or more per year (or, in rare cases, equity or stock options) as a paid consultant, speaker or as a member of an advisory committee for the following companies:

AstraZeneca
Bristol-Myers Squibb
Chemocentryx
UCB, SA
Novartis Pharmaceuticals Corporation
GlaxoSmithKline plc.
Galvani Bioelectronics Limited
Sanofi Pasteur Inc.
AbbVie, Inc.
Johnson & Johnson

Public Health Service-Reportable Financial Conflicts of Interest. Cleveland Clinic scientists and physicians engage in basic, translational and clinical research activities, working to solve health problems, enhance patient care and improve quality of life for patients. Interactions with industry are essential to bringing the researchers' discoveries to the public, but can present the potential for conflicts of interest related to their research activities. Click here to view a listing of instances where Cleveland Clinic has identified a Public Health Service (PHS)-Reportable Financial Conflict of Interest and has put measures in place to ensure that, to the extent possible, the design, conduct and reporting of the research is free from bias.

* Cleveland Clinic physicians and scientists subscribe to the guidance presented in the PhRMA Code on Interactions with Healthcare Professionals and the AdvaMed Code of Ethics on Interactions with Health Care Professionals. As such, gifts of substantial value are generally prohibited.

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Cleveland Clinic Main Campus

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