Distribution Trumps Clinical Differentiation
Carbon Health
This reveals that hybrid primary care scales less like a better clinic and more like a cheaper customer acquisition machine. In practice, the winner is the company that can place care inside an existing traffic source, whether that is Prime, a payer book, or a pharmacy footprint. Carbon built a flexible care stack, but Amazon and CVS can fill schedules with members and insured patients they already own.
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Amazon One Medical is built around distribution loops that Carbon does not have. Prime members can buy membership for $99 per year, One Medical also sells pay per visit telehealth for common conditions, and Amazon is tying care into pharmacy pickup and AI triage inside the same consumer funnel.
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CVS plays a different game. It combines Aetna insurance, more than 9,000 pharmacies, more than 1,000 walk in and primary care clinics, and Oak Street centers for Medicare patients. That lets CVS steer patients into owned sites of care and keep more of the economics across insurance, visits, and scripts.
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Carbon’s edge is operating flexibility, not captive demand. It has iterated across urgent care, primary care, virtual visits, and software workflows, but its clinic heavy model remained hard to scale efficiently, and the business entered Chapter 11 in February 2026 after rapid growth and retrenchment.
Going forward, distribution will matter even more as primary care gets bundled into larger health ecosystems. Amazon is likely to keep reducing friction between app, visit, and prescription. CVS is likely to keep routing members through its insurer and retail network. The strongest path for Carbon’s software and workflows is to ride on top of larger partners’ distribution rather than outrun it clinic by clinic.