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A James O''Malley

Biographic Data

ID1726642
NAMEA James O''Malley
GIVEN NAMESA James
FAMILY NAMEO''Malley
SIGNATUREMALLEY A J O
AFFILIATIONSDartmouth College
ORCID0000-0001-8389-6217
VERIFIEDYes
TOTAL WORKS38
TOTAL CITATIONS22
WORKS AS AUTHOR38
WORKS AS EDITOR0
FIRST PUBLICATION YEAR2006
LATEST PUBLICATION YEAR2026
H-INDEX3
  • Rural–urban disparities in primary care and geographic continuity of care for children with medical complexity

    Open Access•Mary Arakelyan, Andrew P Schaefer et al.•ARTICLE•The Journal of Rural Health•2026

    PURPOSE: Rural-residing children with medical complexity (CMC) may receive fragmented care given clinician shortages in rural communities. This study characterized differences in continuity of care between rural- and urban-residing CMC, applying novel measures of geographic care continuity and assessing associations between continuity, neighborhood social disadvantage, and unplanned hospital utilization. METHODS: This retrospective cohort study a…

  • Causal inference for intervention spillover in a stepped wedge cluster-randomized trial

    Open Access•A James O''Malley, Amanda O’Malley et al.•ARTICLE•Social Networks•2026

    Often motivated by concerns about contamination of control subjects, stepped wedge cluster-randomized trial designs assign interventions to distinct clusters (e.g., hospitals) and protect against confounding by randomizing the timing of intervention delivery. However, when trial units are embedded in professional networks that span clusters, such designs cannot prevent spillover. In this study, we use longitudinal cluster-randomized trial data an…

  • Network threats to causal inference

    Open Access•C Mcmillan, Mark C Pachucki et al.•ARTICLE•Social Networks•2026•References: 11

    Researchers and practitioners rely on randomized controlled trials (RCTs) to make causal inferences. However, most people who participate in RCTs are part of multiple, overlapping social networks that shape their behaviors and attitudes. As a result, variations in trial participants’ and non-participants’ network positions may impede the generalizability of a RCT’s conclusions. The current project evaluates the extent and impact of these variatio…

  • Travel burden and bypassing closest site for surgical cancer treatment for urban and rural oncology patients

    Open Access•Tracy Onega, Niveditta Ramkumar et al.•ARTICLE•The Journal of Rural Health•2025

    PURPOSE: We examined the relationship between travel burden for surgical cancer care and rurality, geographic bypass of the nearest surgical facility, cancer type, and mortality outcomes. METHODS: Using Medicare claims and enrollment data (2016-2018) from beneficiaries with cancer of the colon, rectum, lung, or pancreas, we measured travel times to: the nearest surgical facility and facility used. For those who bypassed the nearest, we examined t…

  • Changes in US Primary Care Access and Capabilities During the Covid-19 Pandemic

    Open Access•Matthew Mackwood, Elliott S Fisher et al.•ARTICLE•JAMA Health Forum•2025

    In this cohort study, over the time period including the COVID-19 pandemic, primary care practices reported a decline in access to care, while average practice capabilities improved. Integrated practice ownership and ACO participation were both associated with better access and capability scores, suggesting that value-based payment and integrated care delivery support the development of higher-quality primary care. Variations across practices poi…

  • Oncology Physician Turnover in the United States Based on Medicare Claims Data

    Open Access•Sarah L Cornelius, Andrew Schaefer et al.•ARTICLE•Medical Care•2025•References: 35

    OBJECTIVE: Physician turnover rates are rising in the United States. The cancer workforce, which relies heavily on clinical teamwork and care coordination, may be more greatly impacted by turnover. In this study, we aimed to characterize oncologists who move to identify targets for recruitment and retention efforts. METHODS: We identified medical, radiation, and surgical oncologists who treated Medicare beneficiaries diagnosed with breast, colore…

  • Organizational characteristics associated with sustained participation in internal quality improvement

    Open Access•Vanessa B Hurley, Amanda L Brewster et al.•ARTICLE•Social Science & Medicine•2025•References: 45

  • Clinician-Spoken Plain Language in Health Care Encounters

    Open Access•Renata W Yen, Robert Hagedorn et al.•ARTICLE•Academic Medicine•2024

  • Rural–urban disparities in health care delivery for children with medical complexity and moderating effects of payer, disability, and community poverty

    Open Access•Mary Arakelyan, Seneca D Freyleue et al.•ARTICLE•The Journal of Rural Health•2024

    PURPOSE: Children with medical complexity (CMC) may be at increased risk of rural-urban disparities in health care delivery given their multifaceted health care needs, but these disparities are poorly understood. This study evaluated rural-urban disparities in health care delivery to CMC and determined whether Medicaid coverage, co-occurring disability, and community poverty modified the effects of rurality on care delivery. METHODS: This retrosp…

  • The role of comorbidities, medications, and social determinants of health in understanding urban‐rural outcome differences among patients with heart failure

    Open Access•Emily P Zeitler, Joanna M Joly et al.•ARTICLE•The Journal of Rural Health•2024

    PURPOSE: There is now a 20% disparity in all-cause, excess deaths between urban and rural areas, much of which is driven by disparities in cardiovascular death. We sought to explain the sources of these disparities for Medicare beneficiaries with heart failure with reduced ejection fraction (HFrEF). METHODS: Using a sample of Medicare Parts A, B, and D, we created a cohort of 389,528 fee-for-service beneficiaries with at least 1 heart failure hos…

  • Safety Net Primary Care Capabilities After the Covid-19 Pandemic

    Open Access•Karen E Schifferdecker, Ching‐Wen Yang et al.•ARTICLE•JAMA Health Forum•2024

    The results of this survey study suggest that FQHCs outperformed non-FQHC practices on important care processes while serving a patient population with lower incomes who are medically underserved compared with patients in other practice types. Legislation to expand funding for the FQHC program should improve services for underserved populations and target current non-FQHC safety net practices to serve these populations. Increased support for thes…

  • A Quality Improvement Initiative for Inpatient Advance Care Planning

    Open Access•Olivia A Sacks, Megan Murphy et al.•ARTICLE•JAMA Health Forum•2024

    This nationwide cohort study suggests that while the ACP quality initiative increased ACP billing, changes in clinical outcomes were inconsistent with the hypotheses. Further study is needed to address questions regarding confounding by unobserved measures of care quality

  • Network spillover effects associated with the ChooseWell 365 workplace randomized controlled trial to promote healthy food choices

    Open Access•Mark C Pachucki, C S Hong et al.•ARTICLE•Social Science & Medicine•2024•Cited by: 1•References: 43

  • The impact of adding cost information to a conversation aid to support shared decision making about low‐risk prostate cancer treatment

    Open Access•Mary C Politi, Rachel C Forcino et al.•ARTICLE•Health Expectations•2023

    BACKGROUND: Decision aids help patients consider the benefits and drawbacks of care options but rarely include cost information. We assessed the impact of a conversation-based decision aid containing information about low-risk prostate cancer management options and their relative costs. METHODS: We conducted a stepped-wedge cluster randomised trial in outpatient urology practices within a US-based academic medical center. We randomised five clini…

  • The Confident study protocol

    Open Access•Gabrielle Stevens, Lisa Johnson et al.•ARTICLE•BMC Public Health•2023

    NCT05168800 at ClinicalTrials.gov, registered December 23, 2021

  • The diffusion of health care fraud

    Open Access•A James O''Malley, Thomas A Bubolz et al.•ARTICLE•Social Science & Medicine•2023•References: 28

    Many studies have examined the diffusion of health care innovation but less is known about the diffusion of health care fraud. In this paper, we consider the diffusion of potentially fraudulent Medicare home health care billing in the United States during 2002-16, with a focus on the 21 hospital referral regions (HRRs) covered by local Department of Justice (DOJ) anti-fraud "strike force" offices. We hypothesize that patient-sharing across home h…

  • Validation of the Emotional Tone Index for Families (Etif)

    Open Access•Sophie Kerr, William J Hudenko et al.•ARTICLE•Family Process•2021

    Despite the importance of emotional closeness (EC) in families, few researchers have accurately measured the construct in a systemic way. Additionally, existing measures rely on ratings from one informant, typically the mother, to provide information on closeness within the entire family system. We examined EC in 140 individuals (37 families) using the Emotional Tone Index for Families (ETIF), a novel, multi‐informant measure that obtains bidirec…

  • Social connections and the healthfulness of food choices in an employee population

    Open Access•Diane E Levy, Mark C Pachucki et al.•ARTICLE•Nature Human Behaviour•2021•Cited by: 2•References: 65

  • Influence of Peer Physicians on Intensity of End-of-Life Care for Cancer Decedents

    Nancy L Keating, A James O''Malley et al.•ARTICLE•Medical Care•2019•References: 20

    BACKGROUND: The intensity of end-of-life care varies substantially both within and between areas. Differing practice patterns of individual physicians are likely influenced by their peers. OBJECTIVE: To assess whether intensity of end-of-life care previously provided by a physician's peers influences patterns of care at the end-of-life for that physician's patients. RESEARCH DESIGN: Observational study. SUBJECTS: A total of 185,947 fee-for-servic…

  • The social network context of HIV stigma

    Open Access•Takada, Sae Takada et al.•ARTICLE•Social Science & Medicine•2019•Cited by: 5•References: 107

  • Using Collabo Rate , a brief patient‐reported measure of shared decision making

    Open Access•Rachel C Forcino, Paul Barr et al.•ARTICLE•Health Expectations•2018

    INTRODUCTION: CollaboRATE is a brief patient survey focused on shared decision making. This paper aims to (i) provide insight on facilitators and challenges to implementing a real-time patient survey and (ii) evaluate CollaboRATE scores and response rates across multiple clinical settings with varied patient populations. METHOD: All adult patients at three United States primary care practices were eligible to complete CollaboRATE post-visit. To i…

  • What matters most

    Open Access•Marie-Anne Durand, Marie‐Anne Durand et al.•ARTICLE•BMC Public Health•2018

    NCT03136367 at ClinicalTrials.gov Protocol version: Manuscript based on study protocol version 2.2, 7 November 2017

  • Assessing Variation in Implantable Cardioverter Defibrillator Therapy Guideline Adherence With Physician and Hospital Patient-sharing Networks

    Erika L Moen, Jefferson Bynum et al.•ARTICLE•Medical Care•2018•References: 33

    BACKGROUND: Implantable cardioverter defibrillator (ICD) therapy is used for primary prevention of death among people with heart failure, and new evidence in 2005 on its effectiveness changed practice guidelines in the United States. OBJECTIVES: The objective of this study is to examine how the connectedness of physicians and hospitals, measured using network analysis, relates to guideline-consistent ICD implantation. RESEARCH DESIGN: We construc…

  • Polio vaccine hesitancy in the networks and neighborhoods of Malegaon, India

    Open Access•Jukka-Pekka Onnela, Bruce E Landon et al.•ARTICLE•Social Science & Medicine•2016•Cited by: 11•References: 21

  • Social network targeting to maximise population behaviour change

    Open Access•David Kim, David A Kim et al.•ARTICLE•The Lancet•2015

Next
  • Polio vaccine hesitancy in the networks and neighborhoods of Malegaon, India

    Open Access•Jukka-Pekka Onnela, Bruce E Landon et al.•ARTICLE•Social Science & Medicine•2016•Cited by: 11•References: 21

  • The social network context of HIV stigma

    Open Access•Takada, Sae Takada et al.•ARTICLE•Social Science & Medicine•2019•Cited by: 5•References: 107

  • Results from using a new dyadic-dependence model to analyze sociocentric physician networks

    Open Access•Sudeshna Paul, Nancy L Keating et al.•ARTICLE•Social Science & Medicine•2014•Cited by: 3•References: 32

  • Social connections and the healthfulness of food choices in an employee population

    Open Access•Diane E Levy, Mark C Pachucki et al.•ARTICLE•Nature Human Behaviour•2021•Cited by: 2•References: 65

  • Network spillover effects associated with the ChooseWell 365 workplace randomized controlled trial to promote healthy food choices

    Open Access•Mark C Pachucki, C S Hong et al.•ARTICLE•Social Science & Medicine•2024•Cited by: 1•References: 43

  • Derivation and Confirmation of Scales Measuring Medical Directors’ Attitudes About the Hospitalization of Nursing Home Residents

    Open Access•Edward R Marcantonio, A James O''Malley et al.•ARTICLE•Journal of Aging and Health•2006•References: 2

    Objectives: To derive and confirm scales measuring medical director’s attitudes about hospitalization of nursing home residents. Method: The authors surveyed nursing facility medical directors about the necessity of hospitalizing residents for eight clinical conditions and compared the ratings to those obtained from an expert panel to derive a relative hospitalization score. They also asked about factors that might influence hospitalization decis…

  • Inside the Health Disparities Collaboratives

    Ellie Grossman, Thomas Keegan et al.•ARTICLE•Medical Care•2008•References: 20

    BACKGROUND: Quality improvement collaboratives (QICs) based on the Chronic Care Model (CCM) are widely used models for improving medical care, but there has been little information to date about the specific projects undertaken by participants in these collaboratives and their outcomes. OBJECTIVES: To describe initiatives undertaken by community health centers (CHCs) participating in QICs (the Health Disparities Collaboratives) for asthma, cardio…

  • Strategies to Improve Chronic Disease Management in Seven Metro Boston Community Health Centers

    Chima D Ndumele, Beverley Russell et al.•ARTICLE•Progress in community health…•2009

    Strategies to Improve Chronic Disease Management in Seven Metro Boston Community Health Centers Chima D. Ndumele, MPH , Beverley E. Russell, PhD, MPH , John Z. Ayanian, MD, MPP , Bruce E. Landon, MD, MBA , Thomas Keegan, PhD , A. James O’Malley, PhD , and LeRoi S. Hicks, MD, MPH What Is the Purpose of This Study? • This study was intended to gain insight from health care professionals at local community health centers regarding barriers to optima…

  • Strategies to Improve Chronic Disease Management in Seven Metro Boston Community Health Centers

    Chima D Ndumele, Beverley Russell et al.•ARTICLE•Progress in community health…•2009

    Recommendations included adopting case management as a part of usual care for chronic disease patients; additionally, widespread implementation of CHWs may to provide a platform for more comprehensive care for patients

  • Geographic Area Variations in the Medicare Health Plan Era

    Patricia S Keenan, Paul D Cleary et al.•ARTICLE•Medical Care•2010•References: 21

    BACKGROUND: Prior research identified variations in care experiences across Medicare health plans (Medicare Advantage [MA]), but the relative amount of variation in MA and traditional fee-for-service (FFS) Medicare is unknown. OBJECTIVES: Compare variation and correlations of beneficiary reports of care experiences across geographic areas in MA and FFS. METHODS: Using the 2001 to 2004 Medicare CAHPS surveys, we analyzed 14 measures of care experi…

  • Improving Observational Study Estimates of Treatment Effects Using Joint Modeling of Selection Effects and Outcomes

    A James O''Malley, A James O'Malley et al.•ARTICLE•Medical Care•2011•References: 17

    BACKGROUND: When 2 treatment approaches are available, there are likely to be unmeasured confounders that influence choice of procedure, which complicates estimation of the causal effect of treatment on outcomes using observational data. OBJECTIVE: To estimate the effect of endovascular (endo) versus open surgical (open) repair, including possible modification by institutional volume, on survival after treatment for abdominal aortic aneurysm, acc…

  • Physician Patient-sharing Networks and the Cost and Intensity of Care in US Hospitals

    Michael L Barnett, Nicholas A Christakis et al.•ARTICLE•Medical Care•2012•References: 27

    BACKGROUND: There is substantial variation in the cost and intensity of care delivered by US hospitals. We assessed how the structure of patient-sharing networks of physicians affiliated with hospitals might contribute to this variation. METHODS: We constructed hospital-based professional networks based on patient-sharing ties among 61,461 physicians affiliated with 528 hospitals in 51 hospital referral regions in the US using Medicare data on cl…

  • Using Administrative Data to Identify Naturally Occurring Networks of Physicians

    Bruce E Landon, Jukka-Pekka Onnela et al.•ARTICLE•Medical Care•2013•References: 3

    BACKGROUND: Physicians naturally form networks. Networks could form a rational basis for Accountable Care Organizations (ACOs) for defined populations of Medicare beneficiaries. OBJECTIVES: To use methods from network science to identify naturally occurring networks of physicians that might be best suited to becoming ACOs. RESEARCH DESIGN, SUBJECTS, AND MEASURES: Using nationally representative claims data from the Medicare program for CY 2006 on…

  • Medicare Part D Plan Generosity and Medication Use Among Dual-eligible Nursing Home Residents

    Haiden A Huskamp, David G Stevenson et al.•ARTICLE•Medical Care•2013•References: 4

    BACKGROUND: In 2006, dual-eligible nursing home residents were randomly assigned to a Medicare Part D prescription drug plan (PDP). Subsequently, residents not enrolled in qualified plans at the start of the next year were rerandomized. PDPs vary in generosity through differences in medication coverage and utilization management. Therefore, residents' assigned plans may be relatively more or less generous for their particular drugs. The impact of…

  • High-Risk Medication Use by Nursing Home Residents Before and After Hospitalization

    David G Stevenson, Stacie B Dusetzina et al.•ARTICLE•Medical Care•2014•References: 16

    BACKGROUND: Two prominent challenges in nursing home care are ensuring appropriate medication use and achieving high-quality care as residents transition from the hospital to the nursing home. Research about prescribing practices at this important clinical juncture is limited. OBJECTIVE: To analyze the use of high-risk medications by nursing home residents before and after being hospitalized. We define high-risk medications using the Beers criter…

  • Results from using a new dyadic-dependence model to analyze sociocentric physician networks

    Open Access•Sudeshna Paul, Nancy L Keating et al.•ARTICLE•Social Science & Medicine•2014•Cited by: 3•References: 32

  • Social network targeting to maximise population behaviour change

    Open Access•David Kim, David A Kim et al.•ARTICLE•The Lancet•2015

  • Do Patients at Sites With High RCT Enrollment Propensity Have Better Outcomes

    A James O''Malley, Alistair J O’Malley et al.•ARTICLE•Medical Care•2015•References: 10

    BACKGROUND: Concerns about randomized controlled trial (RCT) generalizability typically center on characteristics of RCT patient participants. Possibly there are RCT site characteristics that distinguish RCT outcomes from those that can be expected in non-RCT settings. OBJECTIVES: To examine whether site propensity toward RCT enrollment is associated with recovery outcomes for patients and whether the association differs between patients who part…

  • Reprint of

    Open Access•Sudeshna Paul, Nancy L Keating et al.•ARTICLE•Social Science & Medicine•2015•References: 32

  • Polio vaccine hesitancy in the networks and neighborhoods of Malegaon, India

    Open Access•Jukka-Pekka Onnela, Bruce E Landon et al.•ARTICLE•Social Science & Medicine•2016•Cited by: 11•References: 21

  • Using Collabo Rate , a brief patient‐reported measure of shared decision making

    Open Access•Rachel C Forcino, Paul Barr et al.•ARTICLE•Health Expectations•2018

    INTRODUCTION: CollaboRATE is a brief patient survey focused on shared decision making. This paper aims to (i) provide insight on facilitators and challenges to implementing a real-time patient survey and (ii) evaluate CollaboRATE scores and response rates across multiple clinical settings with varied patient populations. METHOD: All adult patients at three United States primary care practices were eligible to complete CollaboRATE post-visit. To i…

  • What matters most

    Open Access•Marie-Anne Durand, Marie‐Anne Durand et al.•ARTICLE•BMC Public Health•2018

    NCT03136367 at ClinicalTrials.gov Protocol version: Manuscript based on study protocol version 2.2, 7 November 2017

  • Assessing Variation in Implantable Cardioverter Defibrillator Therapy Guideline Adherence With Physician and Hospital Patient-sharing Networks

    Erika L Moen, Jefferson Bynum et al.•ARTICLE•Medical Care•2018•References: 33

    BACKGROUND: Implantable cardioverter defibrillator (ICD) therapy is used for primary prevention of death among people with heart failure, and new evidence in 2005 on its effectiveness changed practice guidelines in the United States. OBJECTIVES: The objective of this study is to examine how the connectedness of physicians and hospitals, measured using network analysis, relates to guideline-consistent ICD implantation. RESEARCH DESIGN: We construc…

  • Influence of Peer Physicians on Intensity of End-of-Life Care for Cancer Decedents

    Nancy L Keating, A James O''Malley et al.•ARTICLE•Medical Care•2019•References: 20

    BACKGROUND: The intensity of end-of-life care varies substantially both within and between areas. Differing practice patterns of individual physicians are likely influenced by their peers. OBJECTIVE: To assess whether intensity of end-of-life care previously provided by a physician's peers influences patterns of care at the end-of-life for that physician's patients. RESEARCH DESIGN: Observational study. SUBJECTS: A total of 185,947 fee-for-servic…

  • The social network context of HIV stigma

    Open Access•Takada, Sae Takada et al.•ARTICLE•Social Science & Medicine•2019•Cited by: 5•References: 107

  • Validation of the Emotional Tone Index for Families (Etif)

    Open Access•Sophie Kerr, William J Hudenko et al.•ARTICLE•Family Process•2021

    Despite the importance of emotional closeness (EC) in families, few researchers have accurately measured the construct in a systemic way. Additionally, existing measures rely on ratings from one informant, typically the mother, to provide information on closeness within the entire family system. We examined EC in 140 individuals (37 families) using the Emotional Tone Index for Families (ETIF), a novel, multi‐informant measure that obtains bidirec…

  • Social connections and the healthfulness of food choices in an employee population

    Open Access•Diane E Levy, Mark C Pachucki et al.•ARTICLE•Nature Human Behaviour•2021•Cited by: 2•References: 65

  • The impact of adding cost information to a conversation aid to support shared decision making about low‐risk prostate cancer treatment

    Open Access•Mary C Politi, Rachel C Forcino et al.•ARTICLE•Health Expectations•2023

    BACKGROUND: Decision aids help patients consider the benefits and drawbacks of care options but rarely include cost information. We assessed the impact of a conversation-based decision aid containing information about low-risk prostate cancer management options and their relative costs. METHODS: We conducted a stepped-wedge cluster randomised trial in outpatient urology practices within a US-based academic medical center. We randomised five clini…

  • The Confident study protocol

    Open Access•Gabrielle Stevens, Lisa Johnson et al.•ARTICLE•BMC Public Health•2023

    NCT05168800 at ClinicalTrials.gov, registered December 23, 2021

  • The diffusion of health care fraud

    Open Access•A James O''Malley, Thomas A Bubolz et al.•ARTICLE•Social Science & Medicine•2023•References: 28

    Many studies have examined the diffusion of health care innovation but less is known about the diffusion of health care fraud. In this paper, we consider the diffusion of potentially fraudulent Medicare home health care billing in the United States during 2002-16, with a focus on the 21 hospital referral regions (HRRs) covered by local Department of Justice (DOJ) anti-fraud "strike force" offices. We hypothesize that patient-sharing across home h…

Medicine (31 works) · Family medicine (18 works) · Nursing (16 works) · Environmental health (12 works) · Internal Medicine (12 works) · Primary Care and Health Outcomes (11 works) · Psychology (11 works) · Health care (9 works) · Healthcare Systems and Technology (9 works) · Healthcare Policy and Management (8 works)

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