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James O'Malley, MS, PhD

Professor of The Dartmouth Institute
Professor of Biomedical Data Science

Additional Titles/Positions/Affiliations
Adjunct Professor of Computer Science
Adjunct Professor of Mathematics

The Dartmouth Institute
Biomedical Data Science

1994 B.Sc. (Hons) in Statistics: University of Canterbury, New Zealand
1999 M.S. in Applied Statistics: Purdue University, West Lafayette, Indiana
1999 Ph.D. in Statistics: University of Canterbury, New Zealand
2001 Postdoctoral-fellowship in Biostatistics: Harvard Medical School, Boston, Massachusetts

Dartmouth Cancer Center
Quantitative Biomedical Sciences
The Dartmouth Institute for Health Policy and Clinical Practice

Curriculum Vitae

NIH Biosketch


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Contact Information

The Dartmouth Institute
Williamson Translational Research Building
1 Medical Center Drive
Lebanon NH 03756

Office: 546
Phone: 603-646-5653
Fax: 603-653-0896
Email: James.OMalley@Dartmouth.edu

Assistant: Kathy Stroffolino
Asst. Email: Kathy.M.Stroffolino@dartmouth.edu

Professional Interests

My research interests span both statistical methodology and various areas of medicine and health care. My prior and ongoing contributions to statistical methodology involve statistical inference for social networks, multivariate hierarchical models, comparative effectiveness research including causal inference for both randomized and observational studies, and Bayesian analysis. Specific research projects are typically motivated by problems encountered in my collaborative work with physicians, sociologists, health economists, health services researchers, epidemiologists and others. Application areas of focus include evaluating the relationship between health and social networks, evaluation/estimation of variations in health quality and outcomes, vascular surgery and cardiology, and evaluation of medical devices.

Rotations and Thesis Projects

Statistical Methods:
- Analysis of Social Network Data
- Multivariate-Multilevel Models
- Comparative Effectiveness Research (Causal Inference)
- Bayesian Analysis
- Design and Analysis of Medical Device Clinical Trials

Collaborative Work:
- Social networks and health
- The measurement and reporting of health care quality
- Diffusion of medical technology
- Tracking health systems
- Comparative effectiveness in vascular surgery
- Comparative effectiveness in cardiology
- Comparative effectiveness in mental health

Grant Information

Projects currently leading or in a leading role:

NIH/NIA P01AG019783 (Skinner PI) 07/01/2001-11/30/2023
Causes and Consequences of Healthcare Efficiency
PI: Statistical and Network Analysis Core

AHRQ U19HS024075 (Fisher PI) 09/01/2015-08/31/2021
Accelerating the Use of Evidence-Based Innovations in Healthcare Systems
PI: Data Core

NIH P20GM130454 (Whitfield PI)
8/1/2019 - 7/30/2024
Center for Quantitative Biology: A focus on "omics", from organisms to single cells (COBRE)
PI: Data Core

IHS-2018C2-12902-IC (Leyenaar PI)
7/1/2019 - 6/30/2023
Comparative Effectiveness of Direct Admission & Admission through Emergency Departments for Children
PI: Sub-contract

NIH RO1 HS025408 (Landon PI)
9/30/2017 - 7/31/2021
Identifying Predictors of Hospital Admission from the ED Among the Elderly
PI: Sub-contract

PCS-2017C2-7724-IC (Pratt PI)
2/15/2019 - 2/14/2024
Integrated Physical and Mental Health Self¬-management Compared to Chronic Disease Self-¬management
PI: Sub-contract

Notable completed projects:

PCORI ME-1503-28261 (O’Malley PI)
Advancing Patient-Centered Outcomes Research in Survival Data with Unmeasured Confounding to Improve Patient Risk Communication

NIH 1U01 AG046830 (Skinner PI)
Diffusion of Medical Technology and Effects on Outcomes and Expenditures
Project Leader: Methods for Modeling the Diffusion of Implantable Cardiac Defibrillators

NIH 1R01HL109263-01A1 (O’Malley, Subramanian PIs) 04/01/2012-03/31/2015
Proximity to Food Establishments and BMI in the Framingham Heart Study

NIH 1RC4MH092717-01 (O’Malley PI)
Accounting for confounding bias and heterogeneity in comparative effectiveness

NIH/NIA P01 AG0309301 (Christakis PI),
Networks and Neighborhoods
Project Leader: Methods for the Analysis of Longitudinal Social Network Data

Courses Taught

2018- Biostatistics III: Statistical Analysis of Complex Data (QBS 122)
2014-2018 The Practice of Statistics in Medicine (ECS.245.1-TFA13)
2013-2014 Advanced Statistical Methods (ECS.245.1-TFA13)

Mentoring Information

Post-doctoral fellows
2007-2009 Brian Neelon, Postdoctoral Fellow, Harvard Medical School
2010-2012 Sudeshna Paul, Postdoctoral Fellow, Harvard Medical School
2011-2014 Jaeun Choi, Postdoctoral Fellow, Harvard Medical School
2015-2018 Erika Moen, R25 Postdoctoral Fellow, Geisel School of Medicine at Dartmouth
2015-2017 Weston Viles, R25 Postdoctoral Fellow, Geisel School of Medicine at Dartmouth
2016-2018 Pablo Martinez-Camblor, Postdoctoral Fellow, Geisel School of Medicine at Dartmouth
2018-2020 Seho Park, Postdoctoral Fellow, Geisel School of Medicine at Dartmouth
2021-2022 Carly Bobak, Postdoctoral Fellow, Geisel School of Medicine at Dartmouth

PhD Students
2017-2021 Guanqing Chen, Ph.D. Candidate, Program in Quantitative Biomedical Science
2017-2021 Carly Bobak (Co-advisor), Program in Quantitative Biomedical Science
2017-2019 Chuankai An (Co-advisor), Computer Science
2018- Xin Ran, Program in Quantitative Biomedical Science
2022- Bo Qin, Program in Quantitative Biomedical Science
2022- Haobin (Tony) Chen, Program in Quantitative Biomedical Science

PhD Committees
2014-2017 Elizabeth Nichols, Program in Health Policy and Clinical Practice
2018-2020 Helen Newton, Program in Health Policy and Clinical Practice
2019- Renata West Yen, Program in Health Policy and Clinical Practice
2020-2022 Reed Bratches, Program in Health Policy and Clinical Practice
2020-2022 Catherine Pollack, Program in Quantitative Biomedical Science
2020-2021 Joshua Levy, Program in Quantitative Biomedical Science
2022- Sarah Cornelius, Program in Quantitative Biomedical Science
2022- Bruno Scodari, Program in Quantitative Biomedical Science


In 2011 I received the Mid-career Excellence award from the Health Policy Section of the ASA and in 2012 became an elected fellow of the ASA. In 2019 I was the recipient of the International Society for Pharmacoeconomics and Outcomes Research (ISPOR) Award for Excellence in Methodology in Health Economics and Outcomes Research. In 2021 I received the Peggy Y. Thomson Professorship in the Evaluative Clinical Sciences

I was chair of the Health Policy Statistics Section of the America Statistical Association (ASA) in 2008, co-chair of the 2011 International Conference on Health Policy Statistics, and am an Associate Editor at Statistics in Medicine.

I was one of the organizers of the Dartmouth Interdisciplinary Network Research (DINR) seminar series (http://www.dartmouth.edu/~dinr/).

Selected Publications


Communicating visit information to family caregivers: How does method matter? A national survey.
Bratches RWR, Freundlich NZ, Odom JN, O'Malley AJ, Barr PJ
Palliat Support Care. 2024 Apr 24;:1-8. doi: 10.1017/S1478951524000427. Epub 2024 Apr 24.
PMID: 38654707

Estimating the impact of physician risky-prescribing on the network structure underlying physician shared-patient relationships.
Ran X, Meara E, Morden NE, Moen EL, Rockmore DN, O'Malley AJ
Res Sq. 2024 Mar 26; pii: rs.3.rs-4139630. doi: 10.21203/rs.3.rs-4139630/v1. Epub 2024 Mar 26.
PMID: 38585838

The Association Between Oncology Outreach and Timely Treatment for Rural Patients with Breast Cancer: A Claims-Based Approach.
Scodari BT, Schaefer AP, Kapadia NS, Brooks GA, O'Malley AJ, Moen EL
Ann Surg Oncol. 2024 Jul;31(7):4349-4360. doi: 10.1245/s10434-024-15195-y. Epub 2024 Mar 27.
PMID: 38538822

Optimal Physician Shared-Patient Networks and the Diffusion of Medical Technologies.
O'Malley AJ, Ran X, An C, Rockmore D
J Data Sci. 2023 Jul;21(3):578-598. doi: 10.6339/22-jds1064. Epub 2022 Aug 30.
PMID: 38515560

Bayesian Hierarchical Network Autocorrelation Models for Estimating Direct and Indirect Effects of Peer Hospitals on Outcomes of Hospitalized Patients.
Chen G, O'Malley AJ
Res Sq. 2024 Mar 7; pii: rs.3.rs-4014583. doi: 10.21203/rs.3.rs-4014583/v1. Epub 2024 Mar 7.
PMID: 38496605

Clinician-Spoken Plain Language in Health Care Encounters: A Qualitative Analysis to Assess Measurable Elements.
Yen RW, Hagedorn R, Durand MA, Leyenaar JK, O'Malley AJ, Saunders CH, Isaacs T, Elwyn G
Acad Med. 2024 Jun 1;99(6):663-672. doi: 10.1097/ACM.0000000000005666. Epub 2024 Feb 27.
PMID: 38412476

Characterizing the Traveling Oncology Workforce and Its Influence on Patient Travel Burden: A Claims-Based Approach.
Scodari BT, Schaefer AP, Kapadia NS, O'Malley AJ, Brooks GA, Tosteson ANA, Onega T, Wang C, Wang F, Moen EL
JCO Oncol Pract. 2024 Jun;20(6):787-796. doi: 10.1200/OP.23.00690. Epub 2024 Feb 22.
PMID: 38386962

Rural-urban disparities in health care delivery for children with medical complexity and moderating effects of payer, disability, and community poverty.
Arakelyan M, Freyleue SD, Schaefer AP, Austin AM, Moen EL, O'Malley AJ, Goodman DC, Leyenaar JK
J Rural Health. 2024 Mar;40(2):326-337. doi: 10.1111/jrh.12827. Epub 2024 Feb 20.
PMID: 38379187

Association of neurocognitive disorders with morbidity and mortality in older adults undergoing major surgery in the USA: a retrospective, population-based, cohort study.
Abess AT, Deiner SG, Briggs A, Whitlock EL, Charette KE, Chow VW, Shaefi S, Martinez-Camblor P, O'Malley AJ, Boone MD
Lancet Healthy Longev. 2023 Nov;4(11):e608-e617. doi: 10.1016/S2666-7568(23)00194-0.
PMID: 37924842

Constructing within and between hospital physician social networks for modeling physician research participation.
Bobak CA, Mohan D, Murphy MA, Barnato AE, O'Malley AJ
BMC Med Res Methodol. 2023 Oct 28;23(1):253. doi: 10.1186/s12874-023-02069-2. Epub 2023 Oct 28.
PMID: 37898745

View more publications on PubMed