Who We Are

Our core team includes physicians, health behavior experts, human-centered designers, informatics and marketing strategists, and program and project managers. We are committed to supporting hospitals, clinics, and care teams across the state of Michigan and believe that together, we can optimize healthy behavior care for all Michiganders.


Our Team

Tammy Chang MD MPH MS asian woman wearing professional blouse smiling in headshot photo

Tammy Chang, MD, MPH, MS

HBOM Program Director



Dr. Chang is a family physician, community-based researcher, and director of Healthy Behavior Optimization for Michigan (HBOM). She is Associate Professor of Family Medicine at the University of Michigan Medical School, as well as the director of the MyVoice National Poll of Youth, and co-director for the National Clinician Scholars Program at the University of Michigan.

Marika Waselewski smiling standing outdoors


Project Manager



Marika serves as HBOM’s Project Manager. Her experience and interests are in using technology to improve public health outcomes and quality of care. Marika also serves as a project manager in the University of Michigan Department of Family Medicine where she supports MyVoice, a national text message poll of youth, and Special Delivery, a randomized clinical trial using grocery delivery to support low-income young moms during pregnancy. Marika has a BSE in Biomedical Engineering from the University of Michigan and an MPH from the University of Virginia.

Thomas Cascino MD MPH


Program Co-Director


Dr. Cascino is an advanced heart failure and transplant cardiologist and health services researcher interested in healthcare delivery, health equity, and disparities in access to therapies for patients with pulmonary hypertension and heart failure. His current work is focused on the identification of barriers in access to healthcare, understanding disparities in the use of advanced therapies such as heart transplant and left-ventricular assist devices in heart failure patients, identification of optimal timing of left-ventricular assist devices, impact of policy change on access to therapies, and optimizing the use of exercise rehabilitation through novel modes of delivery.

Noa Kim smiling wearing glasses and checkered shirt

Noa Kim

Informatics Design Lead



Noa is the Clinical Informatics Design Lead for HBOM, as well as the Michigan Collaborative for Type 2 Diabetes (MCT2D) and the Michigan Kidney Improvement Collaborative (MCT2D). Noa has a Bachelor’s in Public Health and Sociology from Beloit College and a Master’s in Information Science and Human-Computer Interaction from the University of Michigan.

Larrea Young

Larrea Young

Human-Centered Design Project Manager



Larrea is the Multimedia Designer for HBOM, as well as the Michigan Collaborative for Type 2 Diabetes (MCT2D) and the Michigan Kidney Improvement Collaborative (MCT2D).

She is a designer, illustrator, and educator creating human-centered design solutions with a focus on food, health, and the environment. She is passionate about using design research to create solutions that help people live happier, healthier lives.

Get in Touch with Us




Tammy Chang, MD, MPH, MS



777 E Eisenhower Pkwy

Ann Arbor, MI 48108

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