Beth Virnig

Senior Associate Dean for Academic Affairs and Research

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Senior Associate Dean of Academic Affairs and Research Beth Virnig leads on faculty and research development and strategic planning for the School of Public Health. Her work ensures that the school’s activities are mission focused and aimed at building a healthier future for all. Her efforts to identify and promote opportunities for SPH partnerships range from local to global and take her from rural Minnesota to the slums of Kolkata India.

As a professor, Virnig examines how patients, providers, and markets influence health care. She works to understand how health care use varies across populations and how care received relates to the patient experience. Virnig is director of the Research Date Assistance Center (ResDAC), which is funded by the Centers for Medicare and Medicaid Services to provide free assistance to academic, government, and nonprofit researchers interested in using Medicare or Medicaid data for their research. She also currently serves as the interim director for the University of Minnesota’s Center on Aging, located at the School of Public Health.

Aneisha Tucker
Executive Assistant

Elizabeth Wattenberg

Associate Dean of Education and Student Engagement

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Joe Weisenburger

Chief Administrative Officer/Chief Finance Officer


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As CAO, Joe Weisenburger provides leadership and management for administrative teams that include Finance, Information Technology, and Facilities. Weisenburger helps develop the school’s policies and procedures, as well as promote it values and vision.

As CFO, Weisenburger oversees the school’s $120 million-a-year budget, strategizing and forecasting to keep the school and its research, education, and engagement mission attainable and sustainable. Deeply connected to the school’s goals and work, Weisenburger strives to make it affordable for students.

Bruce Alexander

Head, Division of Environmental Health Sciences

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Bruce H. Alexander leads the Division of Environmental Health Sciences and directs the Upper Midwest Agricultural Safety and Health Center (UMASH) and the Occupational and Environmental Epidemiology Training Program of the Midwest Center for Occupational Health and Safety.

Alexander is an occupational and environmental epidemiologist with experience in environmental determinants of cancer and respiratory disease, injury prevention and control, infectious diseases, the health of agricultural populations, One Health, and global health. His career has been characterized by developing multidisciplinary approaches to address complex public health problems and building public health research and practice capacity. Alexander makes mentoring graduate students and providing them interdisciplinary research opportunities a priority of his division.

Timothy Beebe

Head, Division of Health Policy and Management

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Timothy Beebe is Mayo Professor and Head of the Division of Health Policy and Management at the School of Public Health. He is also an adjunct professor of health services research in the Mayo Clinic College of Medicine & Science.

His primary expertise is in the field of survey methodology, where he has a 30-year track record of testing new data collection methods in both general population and physician samples. Beebe’s other research interests focus on patient-reported outcomes measurement, developing and testing health measures, health care policy, health care access for vulnerable populations, and learning health systems research, a form of health services research that is defined by its embeddedness in health systems.

Dianne Neumark-Sztainer

Head, Division of Epidemiology and Community Health

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As Head of the Division of Epidemiology and Community Health, Dianne Neumark-Sztainer has overall responsibility for ensuring that the division’s research is addressing problems of public health concern and being translated into action, and that its teaching program is highly relevant and applicable to the division’s mission of building a healthier future for all. She is dedicated to meeting the needs of the public through research, training, and outreach.

Neumark-Sztainer’s research focuses on the prevention and reduction of weight-related problems, including obesity, poor dietary intake, inadequate physical activity, disordered eating behaviors, and body dissatisfaction. Her qualitative, epidemiological, and intervention research has primarily focused on young people from ethnically/racially diverse and low-income backgrounds. Neumark-Sztainer has received numerous awards for her research, including her  recent induction into the University of Minnesota Academic Health Center’s Academy for Excellence in Health Research.

Joseph Koopmeiners

Interim Head, Division of Biostatistics

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Joseph Koopmeiners is Interim Head of the Division of Biostatistics, which focuses on the development of statistical methods for biomedical research and collaborates with University research partners on projects involving HIV/AIDS, heart and lung disease, and cancer, among many other public health challenges. Division faculty, students, and staff are involved in over 100 research grants and contracts totaling more than $150 million.

Susan Rafferty

Chief of Staff


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As chief of staff, Susan Rafferty serves the School of Public Health by working with leadership to better identify, articulate, and advance the school’s strategies and key initiatives, and by supporting the success of all members of SPH for a stronger organization. She provides direct leadership for Communications, Human Resources, and Equity, Diversity, and Inclusiveness.

With a JD from William Mitchell College of Law, Rafferty began her career at the University in 1998 as a labor and employment attorney in the Office of the General Counsel. Seeking to have a broader impact preventing and remedying workplace issues before they became lawsuits, Rafferty transitioned to leadership roles in the University’s Office of Human Resources with oversight of employee relations, compliance, and policies functions. In 2014, drawn by the prevention-focused mission of public health to protect and improve the health of entire communities, she joined SPH as Director of Human Resources before becoming Chief of Staff in 2016.

Louis Clark IV

Chief Development Officer and Senior Director for Advancement


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In 2017, Louis Clark IV became the School of Public Health’s chief development officer and senior director for advancement, which includes alumni relations. Clark is the school’s lead fundraising and engagement strategist and directs the alumni relations and development team to provide meaningful alumni and constituent engagement across the school. His team seeks to advance the mission of SPH through volunteer and philanthropic investment.

Clark is heading up the School of Public Health’s most ambitious and strategic capital campaign to date, with the goal of making the school secure in its foundation as it tackles current and future pressing public health challenges.

A veteran in the field of philanthropy, Clark first joined the school as its director of development in 2014. Prior to SPH, he spent a decade working as a development officer in large hospital systems. He holds his Certified Fund Raising Executive (CFRE) certification and remains active with the Minnesota Planned Giving Council.

Sarah Bjorkman

Director of Communications


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Sarah Bjorkman has served as the Director of Communications at the School of Public Health (SPH) since 2017, where she leads all communications and marketing functions, including brand strategy, public relations, executive and philanthropic communications, and social media. She guides a team of skilled professionals as they increase the school’s visibility and support the school’s mission by communicating the value and impact of public health.

Sarah joined the School of Public Health in 2014 as the Marketing Director, leading the school’s brand transformation and linking the school more closely to its core values. Prior to joining SPH, Sarah managed brand and internal communications at the University of Minnesota Extension. She also previously worked in the private sector, providing education, technology, and entrepreneurial solutions to estate planning attorneys.

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