Health Services Research

Health services research examines the impact that various factors have on the ability for individuals to access health care services. In our work, we focus on the impact that geographic access has on the ability for individuals to receive necessary medical services.


Moen EL, Kapadia, NS, O'Malley JA, Onega TL. Evaluating Breast Cancer Care Coordination at a Rural National Cancer Institute Comprehensive Cancer Center Using Network Analysis and Geospatial Methods, Cancer Epidemiology Biomarkers & Prevention. 2019 March. doi: 10.1158/1055-9965.EPI-18-0771.

Onega T, Alford-Teaster J, Wang F. Population-based Geographic Access to National Cancer Institute (NCI) Cancer Center Parent and Satellite Facilities. Cancer, 2017 May 2. doi: 10.1002/cncr.30727. [Epub ahead of print]

Wang F, Onega T. Accessibility of cancer care: disparities, outcomes, and mitigation. Annals of GIS. 2015;21(2):119-125. DOI: 10.1080/19475683.2015.1007893

Onega T, Hubbard R, Hill D, Lee CI, Haas JS, Carlos HA, Alford-Teaster J, Bogart A, DeMartini W, Kerlikowske K, Virnig BA, Buist DSM, Henderson L, Tosteson ANA. Geographic access to breast imaging for U.S. women. J American Coll Rad. 2014;11(9):874-882. PMID: 24889479

Shi X, Alford-Teaster J, Onega T, Wang D. Spatial access and local demand for major cancer care facilities in the United States. Annals of the Association of American Geographers. 2012;102:1125-1134. DOI: 10.1080/00045608.2012.657498

Onega T, Toseston TD, Wang Q, Hillner BE, Song Y, Siegel BA, Tosteson ANA. Geographic and sociodemographic variation of PET use in Medicare beneficiaries with cancer. J Am College Rad. 2012;9(9):635-42. PMID: 22954545

Onega T, Duell EJ, Shi X, Demidenko E, Goodman DC. Race versus place of service in mortality among Medicare beneficiaries with cancer. Cancer. 2010;116(11):2698-706. PMID: 20309847

Onega T, Duell EJ, Shi X, Demidenko E, Goodman D. Influence of place of residence in access to specialized cancer care for African Americans. Journal of Rural Health. 2010;26(1):12-9. PMID: 20105263

Celaya MO, Berke EM, Onega TL, Gui J, Riddle BL, Cherala SS, Rees JR. Breast cancer stage at diagnosis and geographic access to mammography screening. Rural & Remote Health. 2010;10(2):1361-7. PMID: 20438282

Onega T, Duell EJ, Goodman DC, Demidenko E, Shi X, Wang D. Geographic access to cancer care in the U.S. Cancer. 2008;112(4): 909-18. 18189295

Invited Talks

Speaker and Session Chair: Geospatial Approaches to Cancer Care Delivery; National Cancer Institute. September 2016. Bethesda, MD

Plenary Speaker: Cancer Control and Populations from a Geospatial Perspective; National Cancer Institute. September 2016. Bethesda, MD

Access, Utilization, and Mortality in Relation to Specialized Care for African American and Caucasian Medicare Cancer Patients. American Association for Cancer Research. September 2007. Atlanta, GA

Conference abstracts

Developing a Method of Transferring Healthcare Research Data from Data Broker to Researcher: Interactive Secure Institutional Data Release Overseer (ISIDRO). American Medical Informatics Association. March 2017. San Francisco, CA

Assessing Access to Cancer Care Facilities in the U.S. Association of American Geographers. February 2010, Washington, DC

Funded Projects

R21CA212687. Automated delineation of cancer service areas. National Cancer Institute. Role: Principal Investigator

2P30CA023108-37S4; Assessing population measurement for cancer control across the rural-urban continuum; National Cancer Institute. Role: Project Leader (Supplement to NCI Core Grant, Mark Israel PI)

Influence of race and place of service on treatment patterns and outcomes for African American and Caucasian cancer patients.American Cancer Society. Role: Principal Investigator