Diagram is a New York City-based design studio dedicated to improving healthcare experiences and health outcomes by seeing through the eyes of the patient.

We gather and translate insights from patients and providers that create better and meaningful experiences. Our expertise is in creating behavior change, supporting adherence, and designing tools that help patients better manage their conditions.

We also make a mean smoothie.


Les Diagrammers

Miya Osaki  | Partner

Miya brings her skills in interaction design, human-centered research, storytelling, and behavior design to create experiences that improve outcomes and empower patients. Prior to Diagram, Miya served as Director of Experience Design at Johnson & Johnson's Global Strategic Design Office where she created innovative solutions to chronic conditions. She also received a Design Matters Fellowship with the UNICEF Innovation team, working on the One Laptop Per Child initiative.

Miya earned an MFA from Art Center College of Design, Media Design Program and a B.A. in Fine Art and Art History, UC Santa Cruz. She has received 2 patents and awards for her blood glucose meter UI designs. 

Tina Park  | Partner  

Tina has had significant experience in leading innovative research within healthcare organizations. At Johnson & Johnson's Global Strategic Design Office she pioneered a design research team implementing innovative research methods that uncover the voice of the patient. She has also held research posts at Stanford University Hospital working on Project Health Design – a grant funded by the Robert Wood Johnson Foundation and with the Palo Alto Medical Foundation on Diabetes management.

She is currently an adjunct instructor in The School of Visual Arts’ masters program, Design for Social Innovation. Tina holds a B.F.A. from Pratt Institute and an M.F.A. from Art Center College of Design. Her work has been published in several textbooks and international journals.


Timo Ho  | Design Researcher

Timo uses his background in industrial design and design research to support patient-centered innovations across healthcare. Prior to joining Diagram, he collaborated with hospitals in Michigan to develop better approaches to patient-centered care, and designed education and facilitation tools to support glaucoma patients throughout their healthcare journey. For his graduate thesis, he developed a UI solution that integrated the benefits of  electronic health records and physicians’ handwritten notes.

Timo holds a MDes in Integrative Design from the University of Michigan and a B.S. in Industrial Design from the National Taipei University of Technology (Taipei Tech).


Tory Flack  | Studio Manager

Tory brings nearly 10 years as a multimedia storyteller/producer to Diagram. She is fueled by the belief that storytelling can affect social change, and has implemented this over the years as a performer and a theatre teaching artist. Her proudest accomplishments include facilitating workshops for adults with developmental disabilities and at-risk and homeless women; and inviting dialogue about issues such as race, class and gender through the development of Forum Theatre. Her most recent passion project is Project: Girl– a film series inspired by true stories of girlhood, working to represent the full spectrum of the female experience. 



Saadiya Mutawakil  | Intern

Saadiya is