CEO
Mazzetti, Inc.
Walt is a visionary and change-maker. He is the CEO of Mazzetti, an employee-owned Benefit Corporation focused on helping healthcare plan and implement carbon reduction strategies through the use of technology, infrastructure, and systems. He is also the founder and CEO of Sextant, a 501(c)3 nonprofit committed to developing sustainable infrastructure for health facilities in low-resourced countries around the world. Walt spearheads the climate consulting business for Mazzetti, helping clients with a wide range of solutions, from purchasing to data flow, to carbon accounting, to behavior change. With degrees in Mathematics, Philosophy, Engineering, Business, and Law (including an LLM in Energy Law), Walt is uniquely qualified to help healthcare organizations working on issues of carbon reduction.
Walt has a long history of driving change in ways that help healthcare reduce its environmental footprint. He represents the US to the International Federation of Healthcare Engineering, and he serves on the Exco for the IFHE and the current President Elect. He co-authored the unpublished WHO book, Health in the Green Economy: a prescription for the Global Health Sector, and he consults to the WHO through his position with IFHE. He works to develop healthcare standards for IEEE, ASHRAE, NFPA, and FGI. Walt led the efforts of the American Hospital Association to create and develop its national sustainability programs. He was a co-chair of the Green Guide for Healthcare; he helped to develop the ASHRAE Advanced Energy Design Guides for Healthcare. He co-led the team that won the Kaiser International Small Hospital Big Idea Competition; and he is the vice-chair for the ASHRAE 189.3 Healthcare Sustainability Standard. Walt is also on the National Board of the Association of Medical Facility Professionals, and the Facility Guidelines Institute, which publishes the national model licensing code for health facilities. Walt wrote the National Academy of Medicine Paper 2030: Next Steps to Healthcare Climate Leadership. He is currently leading the new ASHRAE Infectious Aerosols Position Document development.
Walt is a frequent speaker/author on healthcare carbon reduction. He leads the research efforts for the FGI. He is a frequent research partner for Lawrence Berkeley National Labs. His most recent project with LBNL is the US-India Energy Alliance, developing energy reduction strategies relevant to hospitals in both India and the US. Walt has done numerous projects to bring infrastructure to low-resourced countries, including India, Burundi, Sierra Leone, Haiti, Honduras, the Dominican Republic, and the Philippines. Walt is currently the PI for grants from ASHRAE, NFPA, the and the University of California Office of the President. Walt is a co-author on the premier guidebooks for Decarbonizing Healthcare in the U.S.
Walt is pioneering the use of renewable energy microgrids. He is leading the research and deployment of the first renewable energy microgrids for a hospital emergency power system (Kaiser Permanente and Valley Children’s Healthcare).
Walt has been awarded the President’s Award from the American Society of Healthcare Engineering (2016), and the Top 10 Award from Healthcare Design (2021).
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Microgrids and the Future: The Impact on Regulation, Finance and Other Aspects of Healthcare (103H)
Tuesday, March 25, 2025
4:30pm – 5:30pm CT