Meet the team of the Rural Medicine Program at Massachusetts General Hospital.


Matt TobeyMatthew Tobey, MD, MPH

Director, Rural Medicine Program
Faculty (2016-present)

Matt Tobey is an internal medicine physician from a rural town in Upstate New York who works in primary care and inpatient care in Rosebud, South Dakota. He founded and directs the Rural Medicine Program in the Mass General Department of Medicine and serves as the lead with partnerships with the Indian Health Service and the Sicangu Oyate. His interests include rural primary care, addiction medicine, and health equity for individuals involved with the criminal legal system. In his spare time, he enjoys running, music, gardening, and time with his family and friends.

Stephanie SunStephanie Sun, MD, MS, MPH

Director, Fellowship Program in Rural Health Leadership
Fellow (2018-2020), Faculty (2020-present)

Stephanie Sun is an Internal Medicine physician from a small town in Ontario, Canada. She graduated from McMaster University with a BSc in Biology with a Genetics Specialization and an MSc in Evolutionary Genetics and Bioinformatics. After a year assisting a medical mission in rural China and working with YWCA Canada supporting women fleeing situations of violence, Dr. Sun studied medicine in the Keith B. Taylor Global Scholars Programme of St. George's University. After training in England, Grenada and New York City, Dr. Sun completed residency at the Yale-Waterbury Internal Medicine Residency Program, where she was also chief resident. Dr. Sun completed the MGH Rural Health Leadership Fellowship in 2020, an MPH in Clinical Epidemiology at the Harvard T.H. Chan School of Public Health, and has been Director of the RHL Fellowship since 2021. Her interests are in health equity leadership, graduate medical education, and point-of-care ultrasound. As a former varsity swimmer who competed at the Canadian 2008 Beijing Trials, she continues to enjoy time in the water and on land exploring new hikes and trails.

Core Faculty

Michael SundbergMichael Sundberg, MD, MPH

Faculty (2016-present)

Sundberg is an assistant professor in the Departments of Medicine and Pediatrics at the University of Minnesota. He is a graduate of the Stanford University School of Medicine, and completed residency training in internal medicine and pediatrics at the Harvard Brigham and Women’s Hospital/Boston Children’s Hospital program. He completed additional training through the Brigham and Women’s Hiatt Global Health Equity Residency, and received a Master of Public Health degree from the Harvard School of Public Health. He works clinically in the Twin Cities and in Rosebud, South Dakota. His interests include global health, rural health system strengthening, health care disparities and medical education.

Amina ChaudhryAmina Chaudhry, MD, MPH, MBA

Faculty (2021-present)

Dr. Amina Chaudhry (she/her) is a general internist with over 20 years of clinical and community health experience. She has been providing clinical care at the Rosebud Service Unit since 2019 in the outpatient and inpatient settings. Dr. Chaudhry completed her residency in Internal Medicine/Primary Care at New York University and a general internal medicine fellowship at Johns Hopkins University, where her research focused on the integration of addiction treatment into HIV primary care. In recent years, she has developed a focus on digital health and ways it can be used to expand access to high quality care and enhance the care experience.

Michael SundbergYun Li, MD, MBA

Fellow (2021-2023)
Faculty (2023-present)

Yun Li is originally from China and came to the US in 2007 to attend Hanover College. She obtained her MD and MBA degrees at Dartmouth, followed by completing an internal medicine residency at Cleveland Clinic. She is passionate about finding ways to achieve the best health outcomes on both individual and community levels. She has performed clinical duties in clinics and hospitals in nine states. She has served in several educational and committee initiatives to improve interprofessional care and the patient experience. During residency, she was appointed as an instructor with Lerner College of Medicine, where she provided teaching for a course in healthcare systems and service. Her research interest is understanding and improving rural health care delivery, especially as regards telemedicine innovations. In her spare time, she likes to explore hiking trails and browse map collections in the public library.

Theodore Weatherwax, MDTheodore Weatherwax, MD

Faculty (2023-present)

Dr. Weatherwax completed his undergraduate education at Montana State University and received a master’s degree in Cellular and Molecular Biology from Tulane. He received his medical degree from the University of New Mexico School of Medicine, completed his family medicine residency at the Puyallup Tribal Health Authority, and served as Chief Resident. He completed a fellowship in Addiction Medicine at Mass General. Dr. Weatherwax brings his passion for recovery and renewal from his experiences with his own tribe to a career pathway of addiction medicine. He hopes to utilize his addiction medicine training to lead the deployment of evidenced based addiction management throughout rural IHS facilities.

Nicole LurieNicole Lurie, MD, MPH

Senior Advisor (2017-present)

Nicole Lurie is a member of the research faculty at Mass General and a senior lecturer at Harvard Medical School. She serves as the strategic advisor to the CEO of the Coalition for Epidemic Preparedness Initiatives and is an honorary fellow at the Leonard Davis Institute for Health Economics at the University of Pennsylvania. She completed an eight-year term as assistant secretary for preparedness and response at the U.S. Department of Health and Human Services (HHS). In that role she led the HHS response to numerous public health emergencies, ranging from infectious disease to natural and man-made disasters, and is responsible for many innovations in emergency preparedness and response. She also chaired the Public Health Emergency Medical Countermeasures Enterprise, a government-wide organization ultimately responsible for the development of medical countermeasures, including vaccines against pandemics and emerging threats. Following that, she served as senior advisor to the director of the Indian Health Service, where she worked on issues related to quality of care. Dr. Lurie has a long history of collaboration on American Indian/Native American health issues. In Minnesota, she co-led an initiative on Native women’s health, and in government she played significant roles in enhancing the quality of data on the health of American Indian and Alaska Native populations, and more recently, addressing staffing and quality of care issues in the Great Plains Area. She continues to practice clinical medicine in a community clinic in Washington D.C.

Josh Metlay, MD, PhDJosh Metlay, MD, PhD

Chief of Division of General Internal Medicine, Interim Chair of the MGH Department of Medicine

Dr. Metlay received his bachelor's degree from Yale University, his PhD in Immunology from Rockefeller University, and his MD from Cornell University Medical College. He completed residency and chief residency in internal medicine at the University of Pittsburgh and a fellowship in general internal medicine and epidemiology at the Massachusetts General Hospital. He also received a Master of Science in Health Policy and Management from the Harvard School of Public Health.

Dr. Metlay’s research has led to numerous federal grants from NIAID, CDC, and AHRQ and roles on national advisory committees in the area of infectious diseases epidemiology. He is also further dedicated to education and mentorship. He has been recognized with honors including the Lindback Foundation Award for Distinguished Teaching in 2008, the Mid-Career Research and Mentorship Award from the Society of General Internal Medicine in 2010, and the Arthur Asbury Outstanding Faculty Mentorship Award from the Perelman School of Medicine at the University of Pennsylvania in 2011.

Current Fellows

Kristen Sparagna, MDKristen Sparagna, MD

Fellow (2022-2024)

Kristen Sparagna graduated from the University of Chicago and Albany Medical College. She completed a combined residency in medicine and pediatrics at the University of Cincinnati. Through the fellowship, she works at the Rosebud Hospital and with the Mass General Home Hospital Program in Boston.

Greg Yungtum, MD, MAGreg Yungtum, MD, MA

Fellow (2022-2024)

Gregory Yungtum graduated from the University of Notre Dame, the University of Iowa Carver College of Medicine, and completed residency at Brown University. He also completed a Master of Arts in Medical Anthropology at Harvard University. Through the fellowship, he works at the Rosebud Hospital and with the Mass General Home Hospital Program in Boston.


Aislinn O'Keefe, MBAAislinn O'Keefe, MBA

Program Manager

Aislinn O’Keefe joined the Mass General Rural Medicine Programs in December 2020. A graduate of McGill University and Vanderbilt University, she has a long history of work linking teaching hospital teams to populations who have historically received limited health care, including work related to addiction and population health.

Brooke Wilson, MABrooke Wilson, MA

Project Manager

Brooke Wilson is a project manager for education and community-based research. She earned a Masters of Arts from University of Galway (Ireland) in Rural Development. In the 2022-23 academic year, she was a COVID corps volunteer with the RMP in Rosebud.

Sara Purvis, MPHSara Purvis, MPH

Administrative Coordinator

Sara Purvis is a Mass General based project coordinator. She received her Masters of Public Health from Boston University. She has a focus on maternal & child health, research, and health care access.

Associate Fellows

Sagar Raju, MD

Sagar Raju received his B.S. from Yale University where he studied biochemistry and served as a Yale Global Health Fellow. Prior to college, he spent a year working in rural India on emergency health systems design. He received his medical degree from Harvard Medical School and completed Internal Medicine-Pediatrics residency at Mass General Hospital. He currently works as a med-peds hospitalist at MGH and at the Maniilaq Tribal Health Center in Kotzebue, Alaska providing clinical care and public health support for the tribal health system. Dr. Raju started as an Associate Fellow in 2023.

Amelia Stutman, DO

Amelia Stutman is a family medicine physician who completed her residency training at Lehigh Valley Health Network in Allentown, PA. Specific focuses during residency included being a part of the maternity care track, research in preconception care and an intimate partner violence screening implementation at her continuity clinic. Currently, she spends 60% of the year working clinically in Kotzebue, AK. When not working, she is adventuring in the lower 48 with family, friends and spending time with her four cats. Dr. Stutman joined as an Associate Fellow in 2023.

Affiliate Staff & Faculty

  • Carolina Abuelo, MD, MPH - Mass General. Interests/specialties: health equity, addiction care, primary care systems.
  • Jehan Alladina, MD - Mass General. Interests/specialties: internal medicine, pulmonology, critical care.
  • Scott Biggerstaff, DO - University of Minnesota. Interests/specialties: pediatrics, internal medicine, point-of-care ultrasound, narrative medicine
  • Marjory Bravard, MD - Mass General. Interests/specialties: hospital operations, patient flow, change management.
  • Adriana Dhawan, MD - University of Minnesota. Interests/specialties: internal medicine, pediatrics, diversity, equity and inclusion curriculum.
  • Mark Eisenberg, MD - Mass General. Interests/specialties: addiction medicine, infectious disease.
  • Max Fraden, MD - Hennepin County Medical Center. Interests/specialties: internal medicine, global health.
  • Jean Heisler, MD - University of South Dakota. Interests/specialties: family medicine, medical education, reservation-based care.
  • Brenda Her, MD - University of Minnesota. Interests/specialties: internal medicine, pediatrics
  • James Hudspeth, MD - Boston Medical Center. Interests/specialties: global health, health equity, medical education.
  • Michael Incze, MD - University of Utah. Interests/specialties: addiction medicine, internal medicine.
  • Shahid Jaffer, MD - University of Minnesota. Interests/specialties: global health, quality improvement.
  • Paul Johnson, MD - Hennepin County Medical Center. Interests/specialties: internal medicine, primary care.
  • Bill Kormos, MD - Mass General. Interests/specialties: primary care, medical education.
  • Hannah Lee, MD - University of Minnesota. Interests/specialties: internal medicine, pediatrics.
  • Victor Lewis, MD - Mass General. Interests/specialties: internal medicine, carceral care.
  • Jim Morrill, MD, PhD - Mass General. Interests/specialties: primary care, internal medicine, addiction medicine.
  • Michael Nathan, MD - Mass General. Interests/specialties: internal medicine, medical education.
  • Patrick O’Connor, MD - Hennepin County Medical Center. Interests/specialties: hospital care, the outdoors.
  • Colin O’Leary, MD - Mass General. Interests/specialties: internal medicine, quality improvement.
  • Shrikar Rajagopal, MD - Hennepin County Medical Center. Interests/specialties: internal medicine, medical education.
  • Leah Ratner, MD - Boston Children’s Hospital. Interests/specialties: internal medicine, pediatrics, global and community health.
  • Rebekah Rollston, MD - Cambridge Health Alliance. Interests/specialties: family medicine, addiction medicine, sexual and reproductive health.
  • Stephen Selinksky, MD - University of Minnesota. Interests/specialties: internal medicine, pediatrics, tropical medicine, refugee medicine.
  • Lisa Simon, MD, DMD - Brigham & Women’s. Interests/specialties: internal medicine, oral health integration, health equity.
  • Kathy Tran, MD - Mass General. Interests/specialties: internal medicine, medical journalism.
  • Katie Wilcox, MD - Hennepin County Medical Center. Interests/specialties: internal medicine.
  • Donovan Williams, MD - University of Minnesota. Interests/specialties: internal medicine, health in rural and urban Native American populations.
  • David Ziehr, MD - Mass General. Interests/specialties: internal medicine, pulmonology, critical care.

Educational/Project Affiliate Faculty:

  • Katrina Armstrong, MD - Columbia University. Internal medicine, CEO of Columbia Medical School, cancer care, health equity.
  • Marcy Bolster, MD - Mass General. Rheumatology.
  • BR Daubman, MD - Mass General. Global Health, bioethics.
  • Kenneth Freedberg, MD - Mass General. Epidemiology, health policy.
  • Jennifer Haas, MD - Mass General. Internal Medicine.
  • Suzanne Koven, MD, MFA - Mass General. MGH Writer in Residence.
  • Leon Ptaszek, MD, PhD - Mass General. Cardiology, electrophysiology.