Dr. Matt Longjohn provides obesity prevention, public health leadership, and school health expertise to nonprofit organizations, hospitals and healthcare systems, research institutes, foundations, and city and state agencies. He is an adjunct assistant professor in the department of pediatrics at Northwestern University’s Feinberg School of Medicine.

Prior to establishing a consulting firm in 2007, Dr. Longjohn was the founding executive director of the Consortium to Lower Obesity in Chicago Children (CLOCC). Under his leadership, CLOCC was launched and grew to become a nationally recognized coalition of over 1500 individuals representing more than 500 organizations.  Longjohn raised millions of dollars to support these partners, and organized dozens of community-based programs and projects. Achievements include the drafting and passage of five state laws; the organization of the City of Chicago’s Inter-Departmental Taskforce on Childhood Obesity; the development of award winning communication tools; a youth-led public education initiative; and numerous research and evaluation projects.

Longjohn has an interest in promoting physician leadership. Towards that end, he has assisted in organizing advocacy efforts of large medical societies to promote gun injury prevention policies, and instructed medical students at Northwestern University and the Medical College of Wisconsin in courses such as “Violence as a Public Health Problem,” “Public Health Advocacy, Policy, and Law,” and “Physician Leadership”.

Longjohn received his B.A. in biology from Kalamazoo College and his M.D. and M.P.H. from Tulane University.