Medicare; Health Policy; Insurance, Health; Neoplasms; Medically Uninsured; Medicare Part D; Early Detection of Cancer; Prescription Drugs; Patient Protection and Affordable Care Act
Public Health Interests
Cancer; Cancer screening; Chronic Conditions; Health Care Financing; Health Disparities; Health Economics; Health insurance; Health Policy; Health Services Research; Medicare/Medicaid; Prescription Drugs; Uninsured
Dr. Davidoff studies the ways in which federal and state policies affect availability and cost of private insurance, eligibility and participation in public insurance, and impacts of insurance on access to care, use of services, and health care spending. In previous research she has studied the effects of the Medicaid and SCHIP expansions, private market insurance reform, Medicaid managed care, Medicare Part D, and most recently, the Affordable Care Act. Much of her recent research has focused on the specific effects for individuals newly diagnosed with cancer, or longer term cancer survivors.
Specialized Terms: Medicare Part D; Affordable Care Act; Medicaid expansions; health insurance enrollment; cancer surivors; prescription medications; outcomes research
Extensive Research Description
Dr. Davidoff's research focuses on the effects of public policy on the availability and cost of private insurance, eligibility and participation in public insurance, and impacts of insurance on access to care, use of services, and health care spending. Particular foci for this research have included the Medicaid and SCHIP expansions, private market insurance reform, Medicaid managed care, Medicare Part D, and most recently, the Affordable Care Act. In the past several years she has applied this research to individuals with cancer and their treatment, with specific expertise in lung, colorectal, and hematologic malignancies. Dr. Davidoff has also directed several studies to examine comparative effectiveness of cancer treatments, applying methods of marginal structural modeling and instrumental variables. She has developed methods to improve covariate control for health status in claims-based studies of cancer treatment and outcomes. She has extensive experience working with survey data, including the Medicare Current Beneficiary Survey (MCBS), National Health Interview Survey (NHIS), Medical Expenditure Panel Survey (MEPS), tumor registry data, and insurance claims (SEER-Medicare, Chronic Condition Warehouse, Marketscan). Recent research has examined the relationship between supplemental insurance in the Medicare population and the economic burden of cancer, and how Medicare coverage influences access to oral cancer medications. Ongoing research focuses on reimbursement policy and trends in use and spending on oral and parenteral antineoplastic agents, as well as early evaluation of the impact of the Affordable Care Act on cancer survivors.
- Davidoff AJ, Gardner LD, Zuckerman IH, Hendrick F, Ke X, Edelman M. Validation of Disability Status, a Claims-Based Measure of Functional Status for Cancer Treatment and Outcomes Studies. Medical Care. 2014 Jun;52(6):500-10
- Erten MZ, Davidoff AJ, Zuckerman IH, Shaffer T, Dougherty JS, Ke X, Stuart B. The effect of supplemental medical and prescription drug coverage on health care spending for Medicare beneficiaries with cancer. Value Health. 2014 Jan;17(1):15-21.
- Stuart B, Davidoff A, Erten M, Dai M, Shaffer T, Bryant-Comstock L, Shenolikar R. How Medicare Part D Cost Sharing Affects Initiation and Adherence with Evidence-Based Medications Following Acute Myocardial Infarction. Health Services Research, Health Serv Res. 2013 Dec;48(6 Pt 1):1960-77.
- Davidoff AJ, Erten MZ, Shaffer T, Shoemaker JS, Zuckerman IH, Pandya N, Tai M, Stuart B Out-of-pocket healthcare expenditure burden for Medicare beneficiaries with cancer. Cancer. 2013 Mar 15;119(6):1257-65.
- Zeidan A, Gore SD, McNally D, Baer M, Hendrick F, Mahmoud D, Davidoff AJ. Lenalidomide Performance in the Real World: Patterns of Utilization and Effectiveness in a Medicare Population with Myelodysplastic Syndromes. Cancer 2013 Nov 1;119(21):3870-8.
- Shoemaker JS, Davidoff AJ, Stuart BC, Zuckerman IH, Onukwugha E. Eligibility and Take-up of the Medicare Part D Low Income Subsidy. Inquiry. 2012 Fall;49(3):214-30. PMID:23230703
- 2. Davidoff AJ, Hill SC, Bernard D, Yabroff R. The Affordable Care Act and expanded insurance eligibility among non-elderly adult cancer survivors. Journal of the National Cancer Institute, 2015 Jul 1;107(9).
- JAMA Oncol. 2016 Sep 15. [Epub ahead of print]