Mary D. Willis, PhD, MPH
Assistant Professor (appointment pending)
Boston University School of Public Health
Dept of Epidemiology

Pronouns: she/her/hers

Mary D. Willis, Ph.D., M.P.H., is an Assistant Professor in the Department of Epidemiology at the Boston University School of Public Health. Her expertise lies at the intersection of environmental epidemiology, spatial exposure assessment, and applied data science. Much of her work also leverages econometric-based causal inference methods. She is particularly interested in how epidemiological studies can be best designed to inform health-protective policy decisions.

To date, Dr. Willis has primarily focused on how on exposures from the energy sector (e.g., oil and gas development, traffic-related air pollution) and other aspects of the built environment (e.g., green space, neighborhood disadvantage) influence reproductive health outcomes. Dr. Willis is PI of an NIH Director’s Early Independence Award that examines how oil and gas development may impact fertility and pregnancy. She is also a co-investigator on an accountability study of vehicle emission regulations and birth outcomes that is funded by the Health Effects Institute.

A Preconception Cohort Study on Oil and Gas Development, Fertility, and Pregnancy
09/15/2022 - 08/31/2027 (PI)
NIH/Office of the Director


Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.

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  1. Wesselink AK, Hatch EE, Rothman KJ, Wang TR, Willis MD, Yland J, Crowe HM, Geller RJ, Willis SK, Perkins RB, Regan AK, Levinson J, Mikkelsen EM, Wise LA. A Prospective Cohort Study of COVID-19 Vaccination, SARS-CoV-2 Infection, and Fertility. Am J Epidemiol. 2022 Jul 23; 191(8):1383-1395.View Related Profiles. PMID: 35051292; PMCID: PMC8807200; DOI: 10.1093/aje/kwac011;
  2. Willis MD, Orta OR, Ncube C, Wesselink AK, Ðoàn LN, Kirwa K, Boynton-Jarrett R, Hatch EE, Wise LA. Association Between Neighborhood Disadvantage and Fertility Among Pregnancy Planners in the US. JAMA Netw Open. 2022 Jun 01; 5(6):e2218738.View Related Profiles. PMID: 35771576; PMCID: PMC9247730; DOI: 10.1001/jamanetworkopen.2022.18738;
  3. Willis MD, Hill EL, Kile ML, Carozza S, Hystad P. Associations between residential proximity to oil and gas extraction and hypertensive conditions during pregnancy: a difference-in-differences analysis in Texas, 1996-2009. Int J Epidemiol. 2022 05 09; 51(2):525-536. PMID: 34897479; PMCID: PMC9082796; DOI: 10.1093/ije/dyab246;
  4. Wesselink AK, Wang TR, Ketzel M, Mikkelsen EM, Brandt J, Khan J, Hertel O, Laursen ASD, Johannesen BR, Willis MD, Levy JI, Rothman KJ, Sørensen HT, Wise LA, Hatch EE. Air pollution and fecundability: Results from a Danish preconception cohort study. Paediatr Perinat Epidemiol. 2022 Jan; 36(1):57-67.View Related Profiles. PMID: 34890081; PMCID: PMC8712376; DOI: 10.1111/ppe.12832;
  5. Willis MD, Hill EL, Boslett A, Kile ML, Carozza SE, Hystad P. Associations between Residential Proximity to Oil and Gas Drilling and Term Birth Weight and Small-for-Gestational-Age Infants in Texas: A Difference-in-Differences Analysis. Environ Health Perspect. 2021 07; 129(7):77002. PMID: 34287013; PMCID: PMC8293911; DOI: 10.1289/EHP7678;
  6. Denham A, Willis MD, Croft DP, Liu L, Hill EL. Acute myocardial infarction associated with unconventional natural gas development: A natural experiment. Environ Res. 2021 04; 195:110872. PMID: 33581094; PMCID: PMC7987810; DOI: 10.1016/j.envres.2021.110872;
  7. Willis MD, Hill EL, Kile ML, Carozza S, Hystad P. Assessing the effectiveness of vehicle emission regulations on improving perinatal health: a population-based accountability study. Int J Epidemiol. 2021 01 23; 49(6):1781-1791. PMID: 33485273; PMCID: PMC7825960; DOI: 10.1093/ije/dyaa137;
  8. Denham A, Willis M, Croft D, Liu L, Hill E. Unconventional Natural Gas Development Associated with Acute Myocardial Infarction Hospitalizations and Mortality. Environ. Res . 2021; 195. View Publication
  9. Thessen AE, Grondin CJ, Kulkarni RD, Brander S, Truong L, Vasilevsky NA, Callahan TJ, Chan LE, Westra B, Willis M, Rothenberg SE, Jarabek AM, Burgoon L, Korrick SA, Haendel MA. Community Approaches for Integrating Environmental Exposures into Human Models of Disease. Environ. Health Perspect. 2020; 28(12). View Publication
  10. Denham A, Willis M, Zavez A, Hill E . Unconventional Natural Gas Development and Hospitalizations: Evidence from Pennsylvania, United States, 2003–2014. Public Health. 2019; 1(168):17-25. View Publication
Showing 10 of 12 results. Show More

This graph shows the total number of publications by year, by first, middle/unknown, or last author.

Bar chart showing 12 publications over 5 distinct years, with a maximum of 5 publications in 2021


2020 International Society for Environmental Epidemiology: Conference Travel Award
2020 Oregon State University: Fred & Helen E. Durbin Scholarship
2020 Cascadia Annual Symposium on Environmental, Occupational, and Public Health: Best Oral Paper
2020 Oregon State University: Doctoral Student Travel Award
2019-2020 NIH NIEHS: Ruth L. Kirschstein Predoctoral National Research Service Award
2019-2020 Oregon State University : Training Grant/External Fellowship Tuition Relief Scholarship
2019-2020 Oregon State University: Warren & Frederica Schad Fellowship
2019 CARTEEH Symposium on Transportation, Air Quality, and Health: Best Oral Presentation
2019 Computable Exposures Workshop, Oregon State University : Invited Participant
2018-2019 NIH NCATS: Mentored Predoctoral Career Development Award
2018-2019 Oregon State University: Liam Wood Memorial Fellowship
2018-2019 Oregon State University: Warren & Frederica Schad Fellowship
2018-2019 Oregon State University: Dean’s Graduate Scholarship
2018 International Society for Environmental Epidemiology: Conference Travel Award
2018 IBM & Oregon State University : Workshop Scholarship for Deep Learning in Life Sciences
2017 Annual Semiahmoo Symposium on Environmental, Occupational and Public Health: Best Oral Paper
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715 Albany St
Boston MA 02118
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