Tammy Chang, MD, MPH, MS

Tammy Chang
Associate Professor of Family Medicine
Medical School
[email protected]
Available to mentor
Tammy Chang, MD, MPH, MS
Tammy Chang
Associate Professor
  • About
  • Center Memberships
  • Research Overview
  • Recent Publications
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  • About

    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 via community-engaged research.

    Her NIH-sponsored research is focused on improving access to reproductive health care and promoting healthy pregnancy weight gain among at-risk adolescents using text messaging. She is also the founding director of MyVoice (www.hearmyvoicenow.org) a national text-message poll of youth age 14-24 years. MyVoice engages youth and communities typically invisible to researchers and uses mixed methods to inform local and national policies in real-time.

    Dr. Chang is also the Director of the Health Behavior Optimization for Michigan (HBOM) Collaborative Quality Initiative, a statewide clinical quality improvement initiative with funding and support from Blue Cross Blue Shield of Michigan. Through her leadership, HBOM uses cutting-edge behavior change strategies to transform clinical practices and priorities. HBOM initiatives make the healthy choice the easy choice so all Michiganders can achieve their health and wellness goals.

    Dr. Chang is the Director of the National Clinician Scholars Program at the University of Michigan where she trains junior faculty clinicians in health services research and teaches a Master’s level course in Leadership and Communication. She actively mentors numerous high school students, undergraduate students, graduate students, medical students, and post-doctoral fellows to fill the pipeline of future health services researchers.

    Dr. Tammy Chang is an associate professor in the Department of Family Medicine and a practicing physician at the Corner 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 served on committees and working groups at the National Academy of Science, Engineering, and Medicine (NASEM) and has co-authored two consensus reports on the health and development of adolescents.

    She currently serves on the NASEM’s Board on Children Youth and Families. Dr. Chang has also served on the board of directors of both the North American Primary Care Research Group and the Society of Teachers of Family Medicine where she served as the Chairperson of the Research Committee.

    Center Memberships

    • Center Member
      Caswell Diabetes Institute
    • Center Member
      Institute for Healthcare Policy and Innovation

    Research Overview

    Elevating youth voice to inform health policies in real-time via a national text message poll (www.hearmyvoicenow.org)

    Social media and text message interventions to improve health behaviors

    Healthcare policy focusing on access to healthcare and nutrition services for marginalized populations

    Recent Publications

    See All Publications
    • Journal Article
      Youth perspectives on distracted driving and hands-free laws
      Downer C, St. Louis R, Amaro X, Zakrajsek J, Agarwal R, Waselewski M, Chang T. BMC Public Health, 2026 May 1; 26 (1): 1226 - 1226.
    • Presentation
      Health Care, Education and Training: Teens and STI Self-Testing
      Chang T. 2026 Feb 27;
    • Presentation
      Don’t Be a Fool. Fuel: Fueling to feel your best
      2026 Feb 28;
    • Journal Article
      Team-Based Analysis of Large-Scale Qualitative Data: Tutorial Using a Nationwide SMS Text Messaging Poll of Youth
      DeJonckheere M, Chuisano SA, Waselewski M, Sonneville K, Chang T. Journal of Medical Internet Research, 2026 May 5; 28: DOI:10.2196/72526
    • Journal Article
      Youth Awareness and Perspectives on Fentanyl
      Sindelar J, Amalraj T, Davis S, Soos A, Frank CJ, Chang T. Journal of Adolescent Health, 2026 May 5; DOI:10.1016/j.jadohealth.2026.01.015
    • Proceeding / Abstract / Poster
      "Forgive me Father, for I have Zynned": Youth perspectives on the use of oral nicotine pouches
      Dougherty A, Gupta M, Chang T, Waselewski M, Frank A, Hunter A. 2025 Nov 23;
    • Proceeding / Abstract / Poster
      "Forgive me Father, for I have Zynned": Youth perspectives on the use of oral nicotine pouches
      Dougherty A, Gupta M, Chang T, Waselewski M, Frank A, Hunter A. 2025 Nov 23;
    • Proceeding / Abstract / Poster
      Assessment of U.S. Youth Perspectives on Zero-Proof Alcohol. (Distinguished Trainee Award)
      Frost C, Tisch A, Waselewski M, Chang T. Annals of Family Medicine, 2025 Nov 23; 23 (Supplement 1): 8020 - 8020. DOI:10.1370/afm.23.s1.8020

    Featured News & Stories

    Ailish Dougerty, a woman with dark hair, wearing a light blue cardigan and black shirt
    Department News

    MyVoice poll finds youth have mixed perceptions of oral nicotine pouches

    MyVoice researchers, many of whom are part of the Department of Family Medicine, conducted a study determining youths' perceptions of oral nicotine pouches.
    A small child in a blue t-shirt picks up a bunch of carrots from a produce display.
    Philanthropy News

    Shipt gift helps address food insecurity

    A gift from Shipt supports Michigan Medicine's Tammy Chang, M.D., MPH, in developing Nutrition Value Pathways to expand access to Food is Medicine programs and help address food insecurity.
    Two women discuss a poster at a conference
    Department News

    Family Medicine faculty, residents and students showcase innovative studies at Michigan Family Medicine Research Day

    U-M Department of Family Medicine faculty, residents and students participated in the recent Michigan Family Medicine Research Day. The event features oral and poster presentions of emerging work that come out of the primary care and family medicine research field.
    Teen girl sitting on floor next to her bed looking at a smartphone, with icons from social media apps layered over her as she frowns
    Health Lab

    How to improve mental health safety on social media – not just for young people

    With social media companies losing or settling court cases about their products' impact on young peoples' mental health, experts offer tips for reducing impacts for those who use the platforms.
    Woman with dark brown hair, wearing a grey pull-over U-M shirt.
    Department News

    Project Manager Marika Waselewski honored for her work on tobacco cessation program

    Family Medicine Research Coordinator Marika Waselewski has received a "Spot Award" for her work in helping the Healthy Behavior Optimization for Michigan program reach its first quality measure since the program was established 20 years ago.
    Woman of Asian descent with dark glasses, wearing a black and blue sweater
    Department News

    Dr. Tammy Chang receives Bold Challenges grant funding to expand reach of nutrition programs

    Dr. Tammy Chang of the Department of Family Medicine received a $10,000 grant from U-M's Office of the Vice President for Research to fund her project, “Implementation of Effective Food Programs to Treat and Prevent Chronic Disease," which strives to to connect people with food insecurity to the resources they need to promote health and reduce or cure chronic conditions.