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Search Results to Arlene S Ash PhD

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Arlene Ash, PhD, is Professor and Division Chief for Biostatistics and Health Services Research in the Department of Quantitative Health Services at the University of Massachusetts Medical School, and an internationally recognized methods expert in health services research. She pioneered tools for using administrative data to monitor and manage health care delivery systems, including those now used by the US Medicare program. In 1996, she co-founded DxCG, Inc. (now Verscend) to promote “fair and efficient health care” via predictive software, and received AcademyHealth’s 2008 HSR Impact Award (“Risk-Based Predictive Modeling”). She was one of 6 appointees to the COPSS-CMS white paper project: “Statistical Issues in Assessing Hospital Performance.” Her UMass team has helped MassHealth incorporate social determinants of health into Medicaid/CHIP global payments. Her ~200 research publications reflect long-standing interests in gender, age, and racial disparities; and quality, equity, and efficiency in health care financing and delivery.


American Statistical Association’s Committee on Scientific and Public Affairs (2003-present), Chair of its Subcommittee on Electoral Integrity (2004-2009). Founding member of two health centers, Chicago (1973-1976) Board of directors, Fenway Community Development Corporation (1981-2003) and President (1991-1994) Cofounder (1996) of DxCG, Inc., a predictive modeling health informatics company. DxCG (sold in 2004) is now the science division of Verisk Health, Inc.

Peace Corps Volunteer (1967-69). Mathematics teaching. Mindanao State U, Philippines. Frequent lecturer on Women and Mathematics; encourager of young women to become mathematicians. Author of over 150 research publications. Fellow of the American Statistical Association and AcademyHealth. Recipient of numerous awards for work in statistical methods and applied research.

Academic Background:

Ph.D. University of Illinois, Chicago IL

M.S. Washington University, St Louis, MO

B.A. Harvard University, Cambridge, MA 


Arlene Ash picture faculty web pageArlene Ash is a  Ph.D.-level mathematician who has worked in medical schools as a health services research methodologist since 1984.  Her areas of special interest and expertise include: design of experiments, building and validating models for predicting health care costs, utilization and other health outcomes in populations, comparing quality outcomes across providers, and conducting research into the causes and correlates of health disparities. She writes and lectures about a wide range of methods issues in study design, analysis and reporting, and has frequently led studies to evaluate the relative contributions to health outcomes of individual medical and social risks, medical interventions, and system-level factors.


One or more keywords matched the following items that are connected to Ash, Arlene

Item TypeName
Academic Article Refinements to the Diagnostic Cost Group (DCG) model.
Academic Article Diagnosis-based risk adjustment for Medicare capitation payments.
Academic Article How much better can we predict dialysis patient survival using clinical data?
Academic Article Variations in the management of acute myocardial infarction. Importance of clinical measures of disease severity.
Academic Article High hospital admission rates and inappropriate care.
Academic Article Statewide quality improvement initiatives and mortality after cardiac surgery.
Academic Article Principal inpatient diagnostic cost group model for Medicare risk adjustment.
Academic Article Managed care, hospice use, site of death, and medical expenditures in the last year of life.
Academic Article Chemotherapy use among Medicare beneficiaries at the end of life.
Academic Article Using claims data to examine mortality trends following hospitalization for heart attack in Medicare.
Academic Article Does severity explain differences in hospital length of stay for pneumonia patients?
Academic Article Does the survival advantage of nonwhite dialysis patients persist after case mix adjustment?
Academic Article Adjusting Medicare capitation payments using prior hospitalization data.
Academic Article Patterns of use of common major procedures in medical care of older adults.
Academic Article Postoperative adverse events of common surgical procedures in the Medicare population.
Academic Article Survival analysis using Medicare data: example and methods.
Academic Article Intensive care unit use and mortality in the elderly.
Academic Article Gender differences in the treatment of cerebrovascular disease.
Academic Article Mammography use, breast cancer stage at diagnosis, and survival among older women.
Academic Article Using diagnoses to describe populations and predict costs.
Academic Article Healthcare costs and utilization for Medicare beneficiaries with Alzheimer's.
Academic Article Implications of comorbidity on costs for patients with Alzheimer disease.
Academic Article Influence of age on Medicare expenditures and medical care in the last year of life.
Academic Article Racial and ethnic differences in end-of-life costs: why do minorities cost more than whites?
Academic Article Nursing home residence confounds gender differences in Medicare utilization an example of Simpson's paradox.
Academic Article Racial and ethnic differences in hospice use among patients with heart failure.
Academic Article Disparities by race, ethnicity, and sex in treating acute coronary syndromes.
Academic Article Postoperative adverse events of cholecystectomy in the Medicare population.
Academic Article Predicting the occurrence of adverse events after coronary artery bypass surgery.
Academic Article Risk adjustment of Medicare capitation payments using the CMS-HCC model.
Academic Article Do variations in disease prevalence limit the usefulness of population-based hospitalization rates for studying variations in hospital admissions?
Academic Article Can primary care visits reduce hospital utilization among Medicare beneficiaries at the end of life?
Academic Article The importance of severity of illness adjustment in predicting adverse outcomes in the Medicare population.
Academic Article Risk adjustment methods can affect perceptions of outcomes.
Concept Medicare Part C
Concept Centers for Medicare and Medicaid Services (U.S.)
Concept Medicare
Academic Article Bending the cost curve? Results from a comprehensive primary care payment pilot.
Academic Article How pooling fragmented healthcare encounter data affects hospital profiling.
Academic Article Mispricing in the medicare advantage risk adjustment model.
Academic Article Recent national trends in acute myocardial infarction hospitalizations in Medicare: shrinking declines and growing disparities.
Academic Article Trends in acute myocardial infarction hospitalizations: Are we seeing the whole picture?
Academic Article Reliability of Predicting Early Hospital Readmission After Discharge for an Acute Coronary Syndrome Using Claims-Based Data.
Academic Article A cardiovascular disease risk prediction algorithm for use with the Medicare current beneficiary survey.

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