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A cancer diagnosis lands on a Monday. By Friday, a member and their family are fielding calls from multiple specialists, trying to understand a treatment plan they’ve never heard of, and attempting to figure out how their health plan fits into all of it. Meanwhile, on the plan side, a claim is being generated. Depending on who’s managing that plan, what happens next is either strategic or incidental.

That gap is measured in hundreds of thousands of dollars. It is the difference between a TPA that actively manages complex cases and one that processes them after the fact.

One Claim Can Define a Plan Year

For self-funded employers, the math of catastrophic claims is unforgiving. A single cancer case, organ transplant, premature birth, or traumatic injury can easily generate a million-dollar claim, and the frequency of those claims is rising. According to Sun Life’s annual high-cost claims analysis, million-dollar stop-loss claims are up 61% over the past four years. Stop-loss carriers have taken note.

The financial exposure is only part of the story. Behind every catastrophic claim is a member navigating one of the most disorienting experiences of their life. What happens in the first days and weeks after a serious diagnosis often determines the clinical trajectory and the cost trajectory for everything that follows.

Proactive and expert-led case management at this stage is not merely a service add-on, it’s a mechanism through which better outcomes and lower costs are both achieved.

What Active Case Management Actually Does

When a high-acuity claim opens, a passive TPA stamps it, reviews it against a fee schedule, and passes it through. An active case management model does something fundamentally different. It initiates.

At Boon-Chapman, our Prime DX Care Solutions team includes dedicated nurse case managers who engage directly with members at the point of a serious diagnosis or complex condition. That engagement is clinical, personal, and ongoing.

Here is what that looks like in practice:

Early identification and outreach. High-cost cases don’t announce themselves at the point of a single claim. They surface through diagnosis codes, prior authorizations, and utilization patterns. Experienced case managers recognize the signals early and make contact before a member has time to make costly, uninformed decisions about their care.

Care coordination across providers. Complex cases rarely involve one provider. A cancer patient may be seeing a primary care physician, an oncologist, a surgeon, a radiologist, and a specialty pharmacy, each operating in a separate silo. Case managers build the connective tissue, ensuring the plan of care is coherent, evidence-based, and not duplicating services unnecessarily.

Treatment and facility review. For major procedures including transplants, complex surgeries, and high-cost specialty treatments, a nurse case manager reviews whether the proposed approach aligns with clinical best practices and whether the selected facility is the right match for the acuity of the case. In some instances, directing a member to a center of excellence rather than the nearest in-network hospital can change both the outcome and the cost significantly.

Navigation through the system. Members facing serious diagnoses are typically not equipped to be their own healthcare navigators. Effective case management includes helping members understand their benefits, anticipate what’s coming in their treatment path, and connect with the right resources, including behavioral health support, which is consistently underutilized in high-acuity cases. When a case moves beyond what clinical management alone can address, it feeds directly into care navigation, where members receive hands-on advocacy for provider selection, cost transparency, and next-step coordination.

Transitions of care. Readmissions are among the most preventable drivers of catastrophic cost. When a member transitions from inpatient to outpatient care, case managers coordinate the handoff with the treating team, home health providers, and the member directly to reduce the likelihood of a return hospitalization.

The Numbers Behind the Model

Clinical quality and cost reduction are not competing priorities in high-cost case management. They move together.

When a case manager intervenes early in an oncology case and redirects a member to a center of excellence with superior outcomes and bundled pricing, the plan often saves tens of thousands of dollars on the episode of care. When post-surgical transitions are managed carefully and a readmission is avoided, the savings are immediate and significant. When a premature infant’s NICU stay is actively coordinated with regular clinical review, discharge planning, and connection to outpatient pediatric resources, the total cost of care for the episode is meaningfully lower than in an unmanaged scenario.

Done well, clinical case management doesn’t just improve care. It changes the financial trajectory of the entire episode.

Our Prime DX Care Solutions program achieves an 80% conversion rate on viable care navigation cases, meaning when our clinical team identifies an opportunity to intervene and improve a member’s care path, they succeed the vast majority of the time. That rate reflects the quality of the relationships case managers build with members and the depth of clinical expertise they bring to the work.

Time is Money: What Employers and Brokers Should Ask

When evaluating how a TPA manages high-cost cases, the most important questions are not about whether case management exists. Almost every TPA will say it does. The questions should be about how it works:

Is your case management team internal, or is it outsourced to a third-party vendor? Internal teams have direct access to claims data and plan design details that outsourced vendors typically do not. That integration matters when a case manager needs to act quickly on a developing situation.

At what point does case management engage? If the answer is after a claim is submitted, a significant window of clinical and financial opportunity has already closed. Proactive identification before or at the point of diagnosis is the standard that drives results.

How are outcomes measured? Activity metrics, including number of cases managed and number of calls made, are not the same as outcomes. The right question is about actual rates of readmission reduction, inpatient length-of-stay reduction, and cost savings per complex case.

Are case managers clinically credentialed? Effective case management for high-acuity conditions requires registered nurses and clinical specialists, not administrative coordinators. The clinical credential is what enables a case manager to have a substantive conversation with a treating physician and advocate meaningfully for the member’s care path.

The Difference Is Not Incremental

There are two ways to handle a catastrophic claim. Process it, or manage it. One produces a remittance at the end of the episode. The other changes the episode itself.

That difference shows up in total cost. It shows up in clinical outcomes. And it shows up in what a member actually experiences during one of the hardest moments of their life.

At Boon-Chapman, that is what Smarter Healthcare means in practice. It is what our clinical team delivers, case by case, every day.

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There’s a significant difference between a TPA that processes complex claims and one that manages them. Here’s how we do it.