Meet our leadership team members who organize and lead our national projects for 2025-2026!
Executive Chair
Natalie Baker
Harvard Medical School, Class of 2026
Natalie is a fourth year medical student at Harvard Medical School. Born and raised in Northern California, she completed her BS and MS at Stanford University where she witnessed the devastating health impacts of wildfire and heat on bay area communities firsthand and began organizing around climate change and health. During medical school, Natalie has engaged in numerous advocacy and research projects, including spearheading a longitudinal climate health equity curriculum at Harvard Med. She has previously served as MS4SF’s advocacy co-chair, and her organizational priorities for this year include organizing MS4SF’s first annual Trainee Climate Health Equity Day, facilitating robust regional collaboration, completing the transition to a 501(c)3 non-profit organization, and building collaborative partnerships to further amplify student voices and ideas. In her free time, Natalie enjoys backpacking, trail running in the mud and snow, and playing her guitar.

Vice Chairs

Douglas Fritz, MS2
University of Colorado Anschutz School of Medicine, Class of 2025
Douglas knows climate change, social justice, and health are increasingly connected, and he expects our medical schools to be on the forefront of addressing it. While his work as a Vice Chair for MS4SF is focused on addressing these expectations nationally, as a MD/PhD student in Colorado he works with local civic leaders and community members to addresses heat-stress in Denver with a fantastic team of residents, fellows, and med students in addition to his student leadership in the sustainability mission on campus. Before med school he was an infectious disease researcher at the NIH and Fulbright Scholar in North Macedonia. He received his BS in both Biology and American Studies from Saint Louis University. He’s passionate about interweaving climate change more deeply into med school curricula and elevating what physicians can do to address the climate crisis.

Raushun is a second-year MD-MPH candidate at Oregon Health & Science University (OHSU). After graduating from Stanford University in 2022 with a B.S. in Human Biology and a minor in History, he served as a Clinical Research Coordinator on a Long COVID study at UCSF. As the Recruitment Lead, he worked with community centers around the Bay Area to spread awareness about the disease. His interest in the intersection between public health and medicine spurred a desire to explore the effect of climate change on health, and he looks forward to promoting sustainable practices and forming partnerships with local and global actors in the climate health space.

Melissa Blum
Icahn School of Medicine at Mount Sinai, Class of 2026
melissa.blum@icahn.mssm.edu
Melissa is a 3rd year medical student at Icahn School of Medicine at Mount Sinai. She received her undergraduate degree from Macalester College, where she studied Biochemistry. In medical school, Melissa is co-Chair of her school’s MS4SF chapter and a member of the Sustainability Committee on Student Council. She has worked to improve access to composting for medical students and has led efforts to incorporate content on climate and health into the preclinical curriculum. Her research interests include the health impacts of extreme heat on pregnant people and gaps in health policy protections for populations vulnerable to heat exposure. In her free time, she enjoys running and knitting and she sings alto in New York Chamber Choirs.
Advocacy Co-Chairs
Jordan is a third-year medical student at Georgetown University School of Medicine. She earned her undergraduate degree in Biological Sciences from the University of California, Santa Barbara. There, she spent two years working in a lab studying the mechanism of the plant hormone abscisic acid, an important regulator in plant growth. In understanding this hormone, seed quality could be modified to improve resilience to environmental stressors. In medical school, she has engaged in numerous projects including delivering Georgetown’s first climate health education lecture as part of a mandatory pre-clinical curriculum. She is motivated to continue pursuing similar efforts and promoting sustainable practices. Outside of school, Jordan enjoys baking, board games, and doing aerial silks.

Caidon Iwuagwu
Medical College of Wisconsin, Class of 2027
Caidon is a 2nd year medical student at the Medical College of Wisconsin (MCW). She received her BS in Psychobiology at the University of California-Davis. Caidon was Co-President of her school’s MS4SF chapter after bringing it out of dormancy and collaborated with faculty to integrate climate change education into the new curriculum. In addition to advocacy, Caidon is interested in the impact of social determinants of health on overall well being and academic medicine.

Aroub Yousuf
Harvard Medical School, Class of 2027
Aroub Yousuf is from Chambersburg, PA. She is passionate about the effects of environmental degradation on health and has worked to underscore humanity’s reliance on a thriving ecosystem. She spent her gap year studying the effects of microplastics on human and ocean health. At HMS, she has worked to integrate climate health into the curriculum and has advocated for transition to greener energy. Outside of school, Aroub likes to read, go on nature walks, and spend time with her cat!

Partnerships & Curriculum Co-Chairs

Forest is a second-year medical student at the University of Utah. He has always been interested in environmentalism and is working to one day be a medical director of sustainability and help lead a more sustainable and equitable healthcare system. For now he is passionate about planetary health curriculum reform and advocating for climate change being included in our training of future physicians. On the national level, he would like to assist other students interested in curriculum reform and integrate more planetary health into medical licensing exams. He is also an avid skier, backpacker, and loves corny rom coms.
Marissa Millwater
Rutgers Robert Wood Johnson Medical School, Class of 2027
Marissa is a second-year medical student at Robert Wood Johnson Medical School. After graduating from UC Santa Barbara with a Bachelor of Science in Biology, she was a Research Fellow at the National Institutes of Health focusing on neurodevelopmental motor disorders. Upon matriculation at RWJMS, Marissa got to work on climate health curricular integration efforts, hospital sustainability audits, and co-founded/co-led RWJMS’s MS4SF chapter. Marissa is also passionate about journalism and is the Editor-in-Chief of in-Training, an international peer-reviewed publication for the medical student experience. In her free time, Marissa enjoys reading, cooking, and nature walks. She is excited to strengthen the network of medical students committed to climate health and health systems resilience!


Alexander Pralea
The Warren Alpert Medical School of Brown University, Class of 2028
Alex is a first-year medical student at Brown. After graduating from Brown in 2024 with a degree in Hispanic Studies and Biology, he moved a whopping half-mile to start medical school. He is involved in Brown’s environmental group, ECo, through which he has partnered with local tree-planting organizations and helped out a pilot composting initiative at Rhode Island Hospital. Ultimately, he hopes to merge his career as a physician with interests in planetary and global health. Beyond environmental sustainability, Alex is passionate about ice-y New England skiing and plant-based cooking (particularly anything that involves lentils).
Communications Co-Chairs
Sahar Rizwan
George Washington University School of Medicine and Health Sciences, Class of 2025
Sahar is a fourth-year medical student at George Washington University. She is passionate about developing planetary health curricula at her medical school and creating global public health interventions to mitigate the impacts of climate change in low-income countries. Outside of school, Sahar enjoys yoga, visiting museums, baking, and traveling.


Kathy Li
Medical College of Georgia at Augusta University, Class of 2028
Kathy (she/her) is a second year graduate student pursuing her MD/PhD through the Graduate Partnership Program at the Medical College of Georgia and the National Institutes of Health. She has long held personal interests in sustainability and environmental advocacy and is thrilled at the opportunity to work with MS4SF to incorporate this passion into medical school and healthcare initiatives. She strongly believes that work needs to be done to help address the climate crisis in every sector. For undergrad, she attended Emory University where she received degrees in both Biology and Music Performance. She is interested in pursuing oncology in the future.
Michael is a 2nd year medical student at Baylor College of Medicine in Houston. He graduated from Harvard University in 2022 with a degree in History of Science and Global Health & Health Policy and spent a year before starting medical school working at the Center for One Health Research at the University of Washington. Outside of school, he enjoys running, exploring new neighborhoods (trying to walk every street in the Heights!), and going to local coffeeshops.


Amal is a first year student at Georgetown. She received her undergraduate degree from Emory University and graduated from Rollins School of Public Health at Emory with a MPH in Environmental Health. She is passionate about the intersection between medicine and the environment with a particular interest in climate change, heat, infectious disease, and sustainability.
Climate-Smart Healthcare Co-Chairs

Annalise Morelock
Tulane School of Medicine, Class of 2028
amorelock@tulane.edu
Annalise is a first year student at the Tulane School of Medicine. After graduating from the University of Colorado Boulder with degrees in Integrative Physiology and Biochemistry, she moved to England to pursue a Master of Public Health at the London School of Hygiene and Tropical Medicine. Her dissertation examined barriers to healthcare accessibility in the aftermath of natural disasters. This past year, she worked for the Colorado Department of Public Health this past year, coordinating mental health resources for healthcare workers to increase workforce resiliency and retention. Annalise is committed to exploring the impact of climate change and natural disasters at the crossroads of public health, medicine, and the environment. Climate disasters are only increasing, and she believes it is our responsibility as future medical professionals to advocate and adapt to sustainable practices.
Margaret is a fourth year medical student at Brown. She grew up in Toronto, Canada and completed her Bachelor’s degree in Microbiology and Immunology at McGill University. From leading elementary school Green Team to studying the interaction between the environment and health in medical school, Margaret has always been interested in caring for the world and people around us. At Brown, she has led initiatives supporting community tree planting and composting among medical students. She is really excited to continue working to encourage sustainable medical and lifestyle practices as part of the Climate Smart Health care team. In her free time, Margaret enjoys spending time outdoors, running, road cycling, cooking vegetarian meals and caring for her (too) many houseplants.


Navya is a first year student at the Tulane School of Medicine. She received her Bachelor’s
Degree in Biology with a minor in History from the University of Maryland. Navya’s early
education greatly emphasized having a connection to the natural world and understanding the
impact that humans can have on it. As an aspiring pediatrician, she understands the importance
of preserving the world for future generations and creating a more sustainable future.
Research Co-Chairs

Siddhi is currently a second-year medical student at the University of Michigan Medical School. Born in India and immigrating to the United States at a young age, Siddhi witnessed how vastly different climate and environments affect the way we live, work, and take care of each other. She completed her BS at Penn State University Park, which sparked her climate organizing, advocacy, and research efforts. After graduation, she headed back to Pune, India for a Fulbright-Nehru Research fellowship to study the impacts of climate change on the metabolic health of farmers. Through her efforts in advocacy and research, Siddhi realized she wanted to make climate change and health a central part of her career as a physician. As research chair for MS4SF, Siddhi hopes to work towards making climate and health research accessible for all!
Shreya Gupta is a second-year medical student at Rutgers Robert Wood Johnson Medical School. She completed her undergraduate studies in psychology and the biological sciences at Rutgers University-New Brunswick. She realized physicians’ role in addressing climate change after doing life cycle analyses and waste audits at the hospital. She serves on the Rutgers Office of Climate Action Student Advisory Board and is a student doctor at the student-run free clinic at RWJMS. In her free time, she enjoys spending time with friends and doing anything creative. Shreya hopes to inform hospital sustainability practices and learn more about the impact climate change can and will have on patients’ health.


Mia Guzynski
Wake Forest University of Medicine, Class of 2026
mguzynsk@wakehealth.edu
Mia is a current third-year (nearly fourth-year ah!) medical student at Wake Forest University School of Medicine in Charlotte North Carolina. She completed her undergraduate studies in biology at Davidson College in North Carolina. She’s always been interested in outdoor activities and nature but recently stumbled into the world of Healthcare Sustainability through meeting an anesthesia provider passionate about reducing the impact of the operating room on the environment. Outside of medicine, Mia loves to draw, paint, attempt to learn other languages, chat with friends, and play soccer.
Finance Chair
Mary Reiber
Michigan State College of Human Medicine, Class of 2026
Mary is a 3rd year medical student at the Michigan State College of Human Medicine. A Michigan native, Mary attended the University of Michigan for her undergraduate studies, where she took a class on Public Health and the Environment, which sparked her interest in how sustainability and healthcare intersect. At Michigan State University, Mary founded the first ever Environmental Health Interest Group and worked to raise awareness about what healthcare providers can do on an individual level to incorporate environmental health into their practice. Mary has a strong interest in rural healthcare, and is currently completing her 3rd and 4th years of medical school in the Upper Peninsula through the Rural Medicine Physician Track. Through this program, as well as by earning her Wilderness First Responder certification and Ski Patrol License, Mary has had the incredible privilege of enjoying our natural world, which has cemented her interest in working to bring sustainability to the forefront of medicine as a future physician.

Podcast Co-Chairs

Elizabeth Whidden
Perelman School of Medicine at the University of Pennsylvania, Class of 2026
elizabeth.whidden@pennmedicine.upenn.edu
Elizabeth (she/her) is a fourth year MD/MPH student at the University of Pennsylvania. She graduated with a BA in Biology and Math from Vassar College in 2019, where she did her senior thesis on the off-target environmental effects of crop insecticides. Her interest in climate stems from growing up with a conservation biologist for a father, who taught her to appreciate the importance of conservation and sustainability efforts. At Penn, she co-leads the Healthcare Sustainability Group, is part of the Planetary Health Report Card team, and is working alongside faculty to better integrate climate into medical curriculum and reduce waste production in the hospital system. She is interested in infectious disease, street medicine, and immigrant health, as well as how these intersect with climate change. Outside of medicine, Elizabeth enjoys appreciating art, sewing, long podcast walks, and hanging out with her friends and cat.

Pheobe Cunningham
Perelman School of Medicine at the University of Pennsylvania, Class of 2025
phoebe.cunningham@pennmedicine.upenn.edu
Phoebe (she/her) is a third year medical student at the University of Pennsylvania and new to MS4SF. She graduated with a BA in Art History and Chemistry from Dartmouth College in 2020. Her interest in climate work started abroad working with refugee populations in Northern Thailand and seeing how learning from global health systems can reduce waste locally. She works with the Refugee Health Clinic at Penn and formerly served as the advocacy chair. Here she recognized the role of increasing floods, droughts, and other disasters in decreasing habitable communities and placing pressure on political and economic systems – leading to further forced migration. She currently co-leads the Healthcare Sustainability Group at Penn, advocating for climate integration into curricula and waste reduction within the hospital system. She is also passionate about the intersection of climate and the humanities, co-founding Penn’s Medical Humanities Council and creating art around these topics. Outside medicine, Phoebe enjoys dancing, long explorations around Philadelphia, and cooking with friends.
