
Case Study
Making the Invisible Visible: Designing for Longitudinal Health Insight & Behavior Change
A patient-centered system that builds longitudinal understanding and supports a care loop for thyroid management.
Lead Product Designer | End-to-End Research | AI-assisted Longitudinal Insight | Hypothyroidism Prototype
Impact at a Glance
User research and competitive analysis across thyroid, menstrual, and health tracking apps revealed a gap in flexible, AI-assisted symptom entry with long-term tracking and seamless coordination with care.
About Me

Hi, I’m Kirsten Duell and I design health data experiences that help people manage chronic conditions by turning fragmented medical information into clear, usable context for both patients and care teams.
In addition to my work in healthcare UX, I bring 10+ years’ experience designing end-to-end enterprise-grade SaaS products that secured seed funding and service contracts. I brought clarity and delight to the user experience of complex, AI-driven data engines. I also front-end engineered products and am comfortable working in code environments.
Earning my certification in HIPAA compliance, I work within existing healthcare ecosystems, integrating with platforms, portals and HIPAA-compliant architectures. I view compliance not as a constraint, but as a core design requirement that shapes every decision leveraging my background in medical product development at Abbott Laboratories and UC Irvine.
Outside of design, I love to study longitudinal health data ranging from health data, skiing stats, nutrition to sleep data for mobile and wearable technology to optimize my own health and performance.
Thank you for taking the time to review my case study. I look forward to connecting with like-minded product leaders and discussing how my background in thoughtful, evidence-based design can improve care delivery, reduce clinician burden, and support people managing chronic conditions.