Keeping The Front Door of Healthcare Open: Our Investment in Assort Health

Walk into any outpatient practice in America and you’ll find “the binder.” Inches thick, worn soft from years of use, stuffed with Post-it notes that contain the rules for how patients actually get access to care. New referral or post-op follow-up? Workers’ comp or self-pay? Which provider, which day, which intake form? Little of it lives in any electronic system. Just in the heads of a few tenured schedulers and, of course, the binder.

For decades, the binder has controlled the front door of healthcare. Around it, a patchwork system of staff, offshore call centers, phone trees, and chatbots grew, but strained to support the volume and complexity of the patient journeys it was designed to guide.

Patients sit on hold or land appointments weeks out with the wrong specialist. Practices churn through front-office staff and lose revenue on missed calls. The administrative weight consumes nearly an eighth of all U.S. healthcare spending.

For the first time, AI presents an alternative—not just a “digital binder,” but an intelligent, two-way system built on Patient Journey Memory. A platform that learns from every interaction, anticipates what comes  next, and gives patients a healthcare system that actually remembers them.

At Menlo, we’ve been building conviction in the space for a while. Healthcare has quietly flipped from technology laggard to one of the leading adopters of enterprise AI, and our State of AI in Healthcare report highlighted patient engagement and the front office as the single biggest area of projected new AI spend among health system operators.

The market was clearly ripe for change; solving this was less a matter of when, but who.

Welcoming Assort Health

Today, we’re thrilled to announce that Menlo Ventures is leading the Series C in Assort Health—the AI platform transforming the front door of healthcare.

What began as voice AI for scheduling has evolved into a connected suite of agents that handles the full operational complexity of a specialty practice across the patient journey, from scheduling and intake to referrals, care gap closure, no-show recovery, and payments. Patient Journey Memory ties them together: one continuous record that makes the platform smarter and more personal with every interaction.

Assort started in orthopedics, where front-office complexity is as high as it gets in outpatient medicine, and built for that from the beginning: deep EHR integrations, agentic scheduling workflows, credentialing logic specific to each specialty. When a practice deploys Assort, the institutional knowledge that used to live in binders and in the heads of tenured schedulers gets absorbed into the platform. It doesn’t walk out the door when people leave. Crucially, Assort also remembers the patient. Every call, every visit, every referral stays with the platform for good. In time, this allows the platform to extend beyond the front door and serve as the agentic operating system for the entire patient journey.

Assort has now accumulated over 180M+ patient interactions across dermatology, cardiology, OB-GYN, dentistry, and over a dozen other specialties—and growing fast. Every one of those interactions makes the underlying models more accurate. For patients, the result is a system that finally knows them, in an industry that has always asked them to start over.

Uniquely Capable

We’ve had the privilege of knowing co-CEOs Jon Wang and Jeffery Liu for years before this round came together. Jon, Stanford ML researcher who has published seven papers on the intersection of AI and healthcare, and Jeff, who served as head of product engineering at a $7 billion healthcare company,  make for a unique combination of skill and grit. Before writing a line of code, Jon and Jeff spent months on-site at practices, shadowing schedulers and interviewing over 200 outpatient groups to understand the problem from the inside.

That same instinct shows up in how they’ve built the company: They execute against commitments faster than they make them, and their product velocity is unmatched. The cowboy spirit is, at times, literal—like when they showed up to our investment committee meeting wearing the hats to match. They’ve proven the ability to wrangle the hardest problems in patient access.

Backing the Healthcare Trinity

This investment builds on a thesis we’ve been developing across the portfolio. We back companies that expand access, improve outcomes, and lower cost (i.e., the trinity). Grow Therapy is rebuilding the infrastructure of behavioral health. Nourish is making evidence-based nutrition care accessible to the patients who need it. Solace is giving patients a guide through one of the most confusing systems in their lives.

Where those companies deliver care directly to patients, Assort is the infrastructure that allows healthcare organizations of every size to answer the phone, route the patient correctly, earn the appointment—and never have to open another binder. When the front door works, everything downstream gets better.

Jon, Jeff, and the entire Assort team have built a product their customers can’t imagine giving back, in a market that has been waiting for exactly this for a very long time. We’re proud to be their partners for what comes next.

If you’re a builder who wants to join this amazing team, the Assort team would love to hear from you.