From Discharge to Risk: Fixing the Most Fragile Moment in Healthcare

Many of you have experienced this before: you or someone you love is discharged from the hospital after a procedure or medical episode, a pile of discharge papers in hand, relief mixing with exhaustion. But as the hours at home tick by, relief gives way to a growing unease. Is this pain normal, or a sign that something’s wrong? Should this medication be taken with food, or on an empty stomach? Is this low fever part of healing, or a reason to head back to the ER?

Patients find themselves without a clear source of clinical guidance after leaving the hospital. They are no longer under the care of the facility that discharged them, reaching a hospital clinician remotely can be challenging, and their primary care physician (if they have one) was often not involved in their hospital treatment and may be unable to answer specific questions. As a result, many patients feel their only option is to return to the emergency room, even for conditions that don’t truly require hospital-level careThe consequences are severe and far-reaching: unnecessary hospital utilization, frustrating patient experiences, and clinicians who are already stretched thin carrying additional after-hours responsibilities. In some cases, when patients don’t seek care due to lack of clarity, this can escalate to readmissions, additional procedures, and even life-threatening outcomes.

This is especially true for underserved populations or older patients. Nearly one in five Medicare patients returns to the hospital within 30 days of discharge, despite many of these readmissions being preventable.

The period after a patient leaves the hospital remains one of the least coordinated moments in healthcare. Even with dedicated reimbursement codes, federal penalty programs, and funding dedicated to avoidable utilization, the system still lacks clear ownership of the 30 to 90 days that follow discharge. This gap has existed for years, not because the problem is new or unknown, but because legacy systems were never designed to manage it.

As one senior physician phrased bluntly during our diligence process: "No one takes ownership of the patient in total after they leave the hospital. Discharge is a major problem for hospitals."

The pain is felt not just by patients and providers - payers also carry the cost of avoidable ER visits and readmissions. Over the past decade policy has increasingly pushed the system toward better transitional care, but with health systems chronically lacking resources, the infrastructure required to deliver that care has never caught up with the policy environment. Everyone is motivated to fix the problem, yet until recently there has been no scalable and clinically accountable way to do it.

This reality is why we were excited to lead Dimer Health’s Series A.

Reimagining Care for a Critical Moment

Dimer Health approaches the discharge problem in a fundamentally different way: instead of creating another remote monitoring tool or piece of software that hospitals must staff and operate themselves, it created a new type of clinician: the Transitionist. Dimer functions as a licensed, AI enabled medical practice that integrates directly into the discharge process and assumes responsibility for the transition period after a patient leaves the hospital.

Using an AI-first hybrid approach, patients can seamlessly onboard with Dimer through the AiME app at the time of discharge. Already integrated with their health records, the app provides continuous transitional support - answering clinical questions in real time and, when needed, escalating care to a remote visit with one of Dimer’s clinicians, who specialize in supporting patients as they transition from hospital to home.

The model is simple from the clinician’s perspective too. Physicians refer patients to Dimer upon discharge just as they would refer them to a specialist. Referrals and clinical information move through the electronic health record, after which Dimer’s clinical team takes over. 

This creates a unique “win-win-win” model for all stakeholders:

• Patients get better care at a critical moment in their care journey without paying out of pocket;  the handoff is seamless through physician-led referrals, not through consumer marketing or app downloads.
• Providers improve outcomes, reduce readmissions and reduce burden on clinicians, without needing to dedicate any resources.
• Payers reduce the cost of care, supporting reimbursed transitional care via Dimer instead of expensive hospital readmissions or ER visits.

A Team Built From Inside the System

This unique approach to solving a deep problem in healthcare could only be built by true industry insiders.

Caroline Hodge, Dimer’s co-founder and CEO, brings over two decades of experience building and operating large-scale care delivery programs within the U.S. healthcare system. She is also a breast cancer survivor, an experience that gave her firsthand insight into the very problem Dimer is solving (which she shares in an interview with Fortune).

Gidon Coussin, co-founder and Chief Business Officer, led a long and successful career as an entrepreneur, including selling his startup to Samsung. But he felt that he wanted to make a real impact on people’s lives, so he shifted to front-line emergency medicine - he studied to be a physician's assistant, volunteered as a paramedic, and met Caroline along the way. 

Sarig "Rigi" Reichert, co-founder and Chief Product Officer, brings decades of product leadership experience. During his 10 years at Wix, he helped build and scale products to over $50M in annual recurring revenue. When Gidon and Caroline set out to build Dimer, Sarig was the first call - a product visionary capable of translating a complex clinical challenge into a scalable, AI-driven solution.

Since then, the team has expanded to include exceptional talent across clinical care and AI, drawing expertise from leading healthcare organizations and some of the world’s top technology companies.

A Large and Underpenetrated Opportunity

The transitional care opportunity is both enormous and largely untapped. There are over 34 million hospital discharges each year in the US, yet 80% of eligible patients still receive no structured transitional care today. 

Policy shifts, including dedicated programs by the Centers for Medicare & Medicaid Services (CMS), and the broader move toward value-based care are accelerating demand for standardized, scalable post-discharge solutions. Providers and payers are now financially and operationally motivated to fix this problem. But provider internal efforts have consistently fallen short. As one health system VP told us: "We've tried building our own internal solution, but economics don't enable us to build a large internal program for this. Efforts remain nurse-led, manual, and hard to scale."

Dimer approaches the problem from a different angle. Instead of asking hospitals to build and operate yet another program, the company provides a dedicated care layer designed specifically for the discharge window. By operating as its own clinical practice and leveraging AI to extend the reach of clinicians, Dimer can deliver structured transitional care at scale while remaining tightly integrated with existing hospital workflows.

Over time the opportunity extends beyond the discharge period itself. Transitional care represents the entry point to a broader set of services that could include chronic condition management, episodic care programs, and long term patient relationships that continue far beyond a single hospital stay. By establishing trust and clinical oversight at one of the most vulnerable moments in a patient’s journey, Dimer has the potential to build a lasting connection that reshapes how care is delivered across the continuum.

Why We Led Dimer’s Series A

As investors, there’s nothing more exciting than backing a company that’s already making a real, positive impact on people’s lives from day one. We also believe that unlocking AI in healthcare requires rethinking how care is delivered, not just adding AI on top of existing systems. That’s exactly what Dimer is doing, combining strong clinical capabilities with advanced AI to continuously improve care.

We are proud to lead Dimer Health’s Series A round, alongside existing investors Table Holdings (Bill Ackman’s family office) and Tech Aviv, and support the team as they build a future in which every patient leaving the hospital is supported by a dedicated and intelligent care team.