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Darin Buxbaum

Darin Buxbaum

Co‑founder & CEO at Wider Circle — building neighborhood health

darin
Palo Alto, California
Joined November 2025
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Summary

Entrepreneurial, mission‑driven healthcare operator: Darin co‑founded and now leads Wider Circle, a tech‑enabled services company that builds neighborhood peer groups (Connect for Life) to improve health and reduce costly utilization for vulnerable Medicare and Medicaid populations. He has been central to scaling the program nationally, forming payer partnerships, and raising institutional capital. widercircle+2
Evidence‑driven operator who prioritized measurement and actuarial validation: Wider Circle has paired claims‑based cohorting and outcomes measurement with external validation (Milliman) and peer‑reviewed publications showing reductions in inpatient utilization and improved utilization patterns in specific populations. widercircle+2
Technical + business training with hands‑on medtech and product experience: Darin earned rigorous technical undergraduate training (triple majors at Duke) and an MBA from Stanford (Arjay Miller Scholar), contributed to Stanford Biodesign, and previously founded and led a medtech startup (HourGlass) and ran product roles—giving him a mix of engineering, product and operator skills. caltcm-lmg+2
Focused on social connection, dignity, and health equity: his stated mission and Wider Circle's program design center on restoring hope, strengthening social fabric, and reaching vulnerable populations through trust‑based neighborhood cohorts—'where kumbaya meets calculators'—combining human connection with rigorous measurement to drive payer value. widercircle+2

Work

Education

Projects

Writing

The Impact of Trusted Community Navigators in Improving Care Utilization Patterns for a Population With Chronic Kidney Disease Enrolled in Medicare Advantage: A Longitudinal Claims Based Study

January 1, 2025

A longitudinal claims‑based study of a Wider Circle peer‑support intervention in a Medicare Advantage CKD population showing more efficient utilization patterns and lower costs while maintaining quality (uses claims, propensity matching).

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Improving value for underserved populations with a community‑based intervention: a retrospective cohort study

January 1, 2023

Peer‑reviewed article (Archives of Public Health) evaluating Wider Circle's Connect for Life program and its impact on utilization and outcomes for underserved populations.

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Hobbies

Public speaking / podcast guesting on community health and social determinants topics youtube+1