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John H. Holmes, PhD, FACE, FACMI, FIAHSI

Professor of Medical Informatics in Epidemiology in Biostatistics and Epidemiology at the Hospital of the University of Pennsylvania
Department: Biostatistics and Epidemiology

Contact information
401 Blockley Hall
423 Guardian Drive
Philadelphia, PA 19104
Office: 215-898-4833
Fax: 215-573-5325
Education:
A.B. (Sociology)
University of Pennsylvania, 1976.
M.S. (Information Systems)
Drexel University, 1987.
Ph.D. (Information Science)
Drexel University, 1996.
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Description of CCEB Expertise

Dr. Holmes conducts research in medical informatics and epidemiology. His interests are in evolutionary computation and machine learning approaches to knowledge discovery in databases (data mining), information systems infrastructures for epidemiologic surveillance, clinical decision support systems, semantic analysis, text mining, and information systems user (physician and patient) behavior. He is principal investigator on a project funded by the National Library of Medicine to investigate the use of online discussions as potential sources of adverse drug event data.

As a member of the University of Pennsylvania Comprehensive Cancer Center, Dr. Holmes also works on several cancer-related projects, including as a project principal investigator in the Penn Center for Population Health and Health Disparities. He is a co-investigator on numerous other NIH-funded projects.

Dr. Holmes collaborates with investigators nationwide on data governance issues associated with distributed research networks and comparative effectiveness research. He serves as co-chair of the Data Governance Core of SPAN, a Kaiser-Colorado based project supported by the Agency for Healthcare Research and Quality.

Dr. Holmes' methodologic focus is in evolutionary computation, especially learning classifier systems. His work in evolutionary computation focuses on translational research that bridges the gap between theoretical, genetics-based computing and epidemiologic practice. This work includes adapting evolutionary computational techniques to risk assessment and discovery of clinical decision rules in large clinical databases. Dr. Holmes is continuing this work with extensions to distributed databases and the deployment of genetics-based intelligent agents in wide-scale knowledge discovery tasks in biomedicine and epidemiology. He is active in the international Learning Classifier System community.

Dr. Holmes is an active member of the American Medical Informatics Association (AMIA) having served as Chair of the Education Committee, and member of the Membership, Working Group Steering and 10x10 Steering Committees. He currently serves on the AMIA Board of Directors and is Chair of the Board of Directors of the Global Health Informatics Partnership. He is an elected Fellow of the American College of Medical Informatics (ACMI) and the American College of Epidemiology.

Description of Content-based Expertise

Adherence, Cancer Epidemiology, Cardiovascular Epidemiology, Infectious Diseases, Injury, Medical Informatics, Molecular Epidemiology, Patient-Oriented Research, Pharmacoepidemiology, Prevention, Public Health, Pulmonary Epidemiology

Description of Methodology Expertise

Bayesian Modeling, Causal Inference, Diagnostic Testing, Functional Genomics, Gene Expression Profiling, Health Services Research, Microarray Methods, Missing Data, Data Mining, Machine Learning, Decision Support

Selected Publications

Lutfi W, Pan Z, Grasty MA, Goel NJ, Catalano MA, Sperry AE, Szeto J, Kurzan P, Lawrence KM, Desai, ND, Szeto WY, Holmes JH, Brown CR: Cardiac Valve Prosthesis Choice for Left-sided Infective Endocarditis in Medicare Patients. JTCVS Open. https://doi.org/10.1016/j.xjon.2025.09.050 November 2025.

Sultan L, Venkatakrishna SSB, Anupindi S, Andronikou S, Acord M, Otero H, Holmes JH: ChatGPT-4-Driven Liver Ultrasound Radiomics Analysis: Advantages and Drawbacks Compared to Traditional Techniques. JMIR AI doi:10.2196/68144 2025.

Skarke C, Yang W, Sha D, Lahens NF, Isakova T, Unruh M, Deo R, Carmona-Powell E, Holmes JH, Ficarra E, Chen J, Jiang He, Rincon-Choles H, Shah V, Hsu CY, Anderson AH, Lash JP, Rahman M: A multi-center study to discern the diurnal variation of wearable device-based heart rate variability (HRV) in the Chronic Renal Insufficiency Cohort (CRIC) Study. npj Digit. Med. 8(653), 2025.

Beidler E, Teel E, Schmitt AJ, Muccio G, Holmes JH, Bretzin AC: Anxiety-Related Concussion Perceptions of Parents of Youth Athletes. Journal of Athletic Training Dec 2024.

Moutchia J, McClelland RL, Al-Naamani N, Appleby, Holmes JH, Minhas J, Mazurek JA, Palevsky HI, Ventetuolo CE, Kawut SM: Pulmonary arterial hypertension treatment: an individual participant data network meta-analysis. European Heart Journal Page: ehae049, Feb 2024.

Getzen E, Tan AL, Brat G, Omenn GS, Strasser Z; Consortium for Clinical Characterization of COVID-19 by EHR (4CE) (Collaborative Group/Consortium); Long Q, Holmes JH, Mowery D: Leveraging informative missing data to learn about acute respiratory distress syndrome and mortality in long-term hospitalized COVID-19 patients throughout the years of the pandemic. AMIA Annu Symp Proc Page: 942-950, Jan 2024.

Minhas J, Moutchia J, Al-Naamani N, Mazurek JA, Holmes JH, Appleby D, Smith KA, Fritz JS, Pugliese SC, Palevsky HI, Kawut SM: Electrocardiographic Abnormalities and Their Association with Outcomes in Randomized Clinical Trials of Pulmonary Arterial Hypertension. Ann Am Thorac Soc Jan 2024.

Bretzin AC, Schmitt AJ, Teel E, Holmes JH, Wiebe DJ, Beidler E: Parent and Youth Athlete Perceptions of Concussion Injury: Establishing a Factor Structure. Arch Clin Neuropsychol Jan 2024.

Koch S, Holmes JH, Sacchi L: Unlocking the Potential of the Next Generation: Methods of Information in Medicine Student Paper Award 2024. Methods Inf Med 63(3-04): 63-65, 2024.

Dixon BE, Holmes JH: Special Section on Digital Health for Precision in Prevention: Notable Papers that Leverage Informatics Approaches to Support Precision Prevention Efforts in Health Systems. International Medical Informatics Association Yearbook of Medical Informatics 33(1): 70-72, 2024.

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Last updated: 11/20/2025
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