Core Faculty

Joan Ash, Ph.D., M.L.S., M.S., M.B.A.


Professor and Vice Chair

Research Areas: Implementation of Clinical Information Systems, Computerized Physician Order Entry.

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Timothy Burdick, M.D., MSc

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Assistant Professor

Research interests: Applied clinical informatics, including use of health information technology (HIT) to improve healthcare systems; use of quality improvement methods and design thinking to create, implement, and iteratively improve HIT.

Nancy Carney, Ph.D.


Research Associate Professor


Michael F. Chiang, M.D.



Research Areas: Telemedicine. Computer-based image analysis for clinical diagnosis. Implemntation and evaluation of EHR systems.
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Roger Chou, M.D.



Director, Pacific Northwest Evidence-based Practice Center

Research Interests: Development of evidence-based guidelines for both health screening and the management of pain conditions.

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Associate Professor

Research Interests: Biomedical text-mining, development and application for biomedical researchers.

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David Dorr, M.D., M.S.


Associate Professor and Vice Chair, Clinical Informatics

Research Interests: Care Management Plus, ICCIS, and TOPMED projects: coordination of care for at-risk persons such as older adults, collaborative care, predictive analytics, chronic disease management, and clinical information system requirements to support the above areas.

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Karen Eden, Ph.D.


Associate Professor

Research Interests: Patient and clinician decision-making. Design and evaluation of computerized decision aids for obstetrics, mammograms, smoking-cessation, safety planning for abused women, and fertility preservation for young women.

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Mark Engelstad, D.D.S., M.D., M.H.I.


Associate Professor, School of Dentistry

Research Interests: Oral, dental, and cranio-facial related informatics research.

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Justin Fletcher, Ph.D., M.S.


Assistant Professor

Research Interests: Policy definition and security implementation related to EHR implementation from the executive perspective.

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Paul Gorman, M.D.



Research Interests: Use of information by clinicians and experts in real-world problem-solving focused on patient care. Naturalistic decision-making, information needs, distributed cooperative problem-solving, distributed cognition, and social informatics.

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Jeanne-Marie Guise, M.D., M.P.H.

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Melissa Haendel, Ph.D.


Assistant Professor

Research Interests: Development of anatomical and phenotype ontologies for relating genotypes to phenotypes, Semantic Web technologies, researcher networking, scientific reproducibility, data curation, and user interface design and testing.

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Mark Helfand, M.D., M.P.H.



Interests: Use of systematic reviews to inform clinical and public policy, methods for comparative effectiveness research, patient stories.
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William Hersh, M.D.


Professor and Chair

Research Interests: Use of knowledge-based information by healthcare practitioners and researchers. Design of information retrieval systems and educational technologies.

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Michelle Hribar, Ph.D.



Research Interests: Usability for medical informatics and high performance computing applications.

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Jayashree Kalpathy-Cramer, Ph.D., M.S.


Adjunct Assistant Professor

Research Interests: Use of image processing and machine learning techniques for medical image analysis and retrieval, imaging for radiation therapy and survival analysis for cancer.

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Michael Lieberman, M.D.


Assistant Professor

Research Interests: Clinical quality measurement.  I  503-494-2670

Judith Logan, M.D.


Associate Professor

Research Interests: Dr. Logan's research interests center around the secondary use of clinical data for research, with attention on user interfaces, underlying controlled vocabularies, and data structures.

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Robert Lowe, M.D., M.P.H.



Research Interests: Relationship between emergency department use and access to primary care, especially among vulnerable populations.

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Marian McDonagh, Pharm.D.



Research Interests: Comparative systematic reviews methodology and evidence-based medicine as applied to competing interventions.

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Shannon McWeeney, Ph.D.


Professor and Head of Division of Bioinformatics & Computational Biology

Research Interests: Development and application of statistical and computational methodologies for functional genomics data such as gene expression (microarray and RNA-seq), chIP-Seq and proteomics.

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Vishnu Mohan, M.D., M.B.I.


Assistant Professor

Research Interests: Dr. Mohan is interested in how clinicians make decisions, how they interact with technology, and how technology influences their decision-making, especially in the context of improving patient safety.

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Michael Mooney, Ph.D.



Research Interests: Development of statistical and computational for understanding how DNA variation influences human disease.

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Cynthia Morris, Ph.D., M.P.H.


Professor and Vice Chair

Research Interests: Etiology and epidemiology of congenital heart disease and epidemiology of cardiovascular disease.

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Heidi Nelson, M.D., M.P.H.


Research Professor

Research Interests: Treatment of menopausal symptoms, osteoporosis screening, diagnosis, and treatment, BRCA genetic testing for breast and ovarian cancer susceptibility, and screening for speech and language delay in children, among others.

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Kathryn I. Pyle, A.M.L.S., M.A.


Assistant Professor

Research Interests: Scientific writing and communication.

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Robert Schuff, M.S.



Research Interests: Clinical research informatics. Design and implementation of tools and methods for clinical and translational research. Secondary use of clinical data for research.  I  503-494-5654

Zak Shafran, Ph.D.


Assistant Professor

Research Interests: Speech recognition, spoken language processing, language-based functional assessment, and spoken term detection.

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Xubo Song, Ph.D.


Associate Professor

Research Interests: Digital image and video processing; statistical pattern recognition; machine learning; sensor fusion; computer vision; information theory; biomedical engineering.

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Kemal Sonmez, Ph.D.


Associate Professor

Research Interests: Computational biology and automatic speech recognition, areas which are at the forefront of CSLU and CSEE. Primary areas of expertise include systems theory, information theory, machine learning, pattern recognition, neural computation, and statistical signal processing.  I  503-494-4502

Annette Totten, Ph.D.


Adjunct Research Assistant Professor

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Joanne Valerius, M.P.H., Ph.D.

Joanne Valerius, MPH, PHD

Assistant Professor

Dr. Valerus is recent recipient of Health Information Management Triumph Award for Educators. The Educator Award honors those who demonstrate excellence in preparing the next generation of professionals for their Health Information Management careers.

Research Interests: Human resource development in health care settings. Her focus is on a holistic approach to the workplace and how diversity impacts the workplace.

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Nicole G. Weiskopf, Ph.D

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Assistant Professor

Nicole G. Weiskopf, Ph.D., is an Assistant Professor in the Department of Medical Informatics and Clinical Epidemiology at OHSU. Dr. Weiskopf earned her B.A. in psychology at Wesleyan University, after which she worked in the areas of eating disorder and schizophrenia research for a number of years. After growing interested in the issues surrounding clinical research, including workflows, inefficiencies, and data collection practices, Dr. Weiskopf joined the graduate program at Columbia University’s Department of Biomedical Informatics, where she earned her M.A. and Ph.D.

Research Interests: The secondary use of electronic health record (EHR) data. Her dissertation work centered on the assessment and reporting of EHR data quality problems and the development of guidelines to improve the validity and transparency of clinical research efforts that rely on clinical data sources.

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Beth Wilmot, Ph.D.

Beth Wilmot


Research Interests: Development and application of statistical and computational methodologies for analysis of genomic data (gene expression, SNP variation and copy number variation).

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Stephen Wu Ph.D.

Stephan Wu headshot

Assistant Professor  

Research Interests: Natural language processing, information retrieval, computational semantics, psycholinguistics. The secondary use of EHRs for improved epidemiological research and clinical care.

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Thomas Yackel, M.D., M.S.


Associate Professor

Research Interests: Applied medical informatics, specifically, the use of clinical information systems to improve patient care.

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Christina Zheng, Ph.D.

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Associate Professor

Research Interests: Understanding gene regulatory models in relation to disease progression through the development and application of computational/statistical methods for functional genomics (large scale sequencing, DNA, RNA).

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