Tammy Chang, MD, MPH, MS

Administrative Contact


Dr. Tammy Chang is a health services researcher and practicing family physician with a passion for adolescent health, specifically, breaking the cycle of poverty and poor health among adolescent mothers and their children.  Her research is focused on improving access to reproductive health care and promoting healthy pregnancy weight gain among at-risk adolescents.  

Dr. Tammy Chang is an assistant professor in the Department of Family Medicine and a practicing physician at the Ypsilanti Health Center.  She received her undergraduate degree from the University of Michigan with honors in Cellular and Molecular Biology and Zoological Anthropology. She also received her medical degree and master of public health degree in health policy and management from the University of Michigan. Dr. Chang completed residency training and served as co-chief resident in the Department of Family Medicine at the University of Michigan and is an alumna of the University of Michigan Robert Wood Johnson Foundation Clinical Scholars program. She has received several national awards including the Academy Health Presidential Scholarship for New Health Services Researchers, the North American Primary Care Research Group Distinguished Trainee Award, and the Society of Teachers of Family Medicine Distinguished Paper Award.  

She is a member of the North American Primary Care Research Group and the Society of Teachers of Family Medicine (STFM) where she serves as a member of the Research Committee.

Dr. Chang is fluent in Mandarin Chinese and conversant in Spanish.

She sees patients at Family Medicine at Ypsilanti Health Center →

Areas of Interest

Research Interests
  • Obesity in reproductive-age women
  • New media (social media, text messaging) interventions for weight management
  • Collaborations between large corporations and medical field to improve health



Medical School
  • M.D., University of Michigan Medical School, Ann Arbor, Mich., 2007
  • University of Michigan Health System, Department of Family Medicine, Mich., 2010
Advanced Degrees
  • M.P.H., Health Policy and Management, University of Michigan School of Public Health, Ann Arbor, Mich., 2005
  • M.S., Master of Health and Healthcare Research, Rackham Graduate School, University of Michigan, Ann Arbor, Mich., 2013
  • Research Fellow, Robert Wood Johnson Foundation Clinical Scholars Program, University of Michigan, Ann Arbor, Mich., 2013
Board Certification
  • Family Medicine



Current Research
  • Social Marketing and the Mother-Child Connection: Interdisciplinary Innovation to Address Key Origins of Obesity in the Lifecourse. Global Challenges for Third Century, Co-Investigator (PI: Moniz)
  • National Institutes of Health, Speaking Their Language: Using Social Media and Texting to Create an Adolescent-Centered Approach to Healthy Weight Gain During Pregnancy. Role: PI, 4/1/15-4/1/20, $673,650
  • MCDTR, MyVoice: Real-Time Text Messaging Polling to Give Adolescents a Voice, Role: PI, 1/1/16-12/31/16, $50,000
  • Department of Family Medicine, MyVoice: Real-Time Text Messaging Polling to Give Adolescents a Voice. Role: PI, 9/1/16-8/31/17, $25,000
  • Prevention Research Center Grant, Centers for Disease Control, Deaf Weight Wise 2.0, Rochester Prevention Research Center: National Center for Deaf Health Research. Role: Consultant, 09/01/14-09/01/19, $4.35 million.
  • Michigan Department of Community Health, Health Michigan Plan CMS Evaluation FY16, Role: Co-I, 10/01/15-09/30/16, $1,221,472
  • MCube, MyVoice: Real-Time Text Messaging Polling to Give Adolescents a Voice, Role: PI, 12/01/15-04/29/17, $60,000


Published Articles via PubMed

200 Arnet St.
Suite 200
Ypsilanti, MI  48198

The goal of our team's work is to provide the right people, the right information, at the right time to informs policies that improve the health of young people in America. We collect open-ended responses via a national text message poll from over 1000 youth across the nation. We use this information in real-time to inform policy-makers and youth-serving individuals so they can tailor programs that actually work. This represents a fundamental change in the way research is currently done-- changing the timeline from months/years to weeks. Family medicine is especially well positioned to be a leader in doing research that matters to youth by respecting youth as experts of their own experience. We want to take their stories and experiences to people who make decisions about their health and wellbeing so policies can better meet the need of youth.