Right to Exist: Episode II Otto Sipe / Photon Pharmacy
What does it take to build pharmacy + prescribing rails in a space with a 95% market share? Otto Sipe of Photon Pharmacy shares his story.
The concept of Right to Exist has been a cornerstone of how I mentor founders and teach graduate students for years. Too often, builders and investors think of stakeholder alignment, go to market, and venture design as distinct functions. The best builders look at these as an integrated whole.
The arc of success digital health startups is a thoughtfully crafted wedge grows to become your moat, which then defines your right to exist and ability to have human impact at population scale.
Otto Sipe built Photon Pharmacy into a national scale infrastructure for moving prescriptions and patients from clinicians to pharmacies. He and his team did so in the face of SureScripts owning 95% of the prescription routing volume in the US.
In this interview, he walks us through how they designed their wedge, how the think about traction and defensibility in the face of GenAI and Vibe Coding, and what it means to solve hard problems in digital health.
Clip 1: Why Hundreds of Thousands of Faxes per day Was the Right Architecture Choice.
Clip 2 What Does it Mean When Claude Code Can Build Your Interface in 5 Minutes?
Clip 3: Moats are something you worry about on the way down.
In the full episode:
Why GLP-1 insurance edge cases turned out to be the training ground for selling into health systems
The price-transparency bet Otto admits Photon got wrong, and why the fix is commercial, not technical
How retail pharmacies went from blocking Photon to integrating with it directly
“Tips and tricks from the monopolies that came before us” on scaling a fax operation
The agentic prescribing future: what collapses when an AI can navigate benefits faster than any human party
Otto’s advice for founders staring down a dominant incumbent in a regulated market



