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The readmission math nobody runs before buying software

How to size the actual financial opportunity in a readmission reduction initiative before a vendor sizes it for you.

Christian Armstrong, MD, MHSA Chief Executive Officer, MedPAC Technologies 5 min read

Every vendor will build you an ROI model. You should walk into that meeting with your own, because the difference between the two is the actual negotiation.

Three numbers you already have

Annual admissions. Current 30-day readmission rate. Payer mix. That is enough to get within range, and all three are in your existing reporting.

The number vendors inflate

Relative reduction. Case studies quote 30 to 40 percent. Plan on 10 to 20 for a program you execute well, and treat anything above that as upside rather than as the basis for the business case.

The number nobody computes

What a readmission actually costs you, specifically, given your contracts. Under fee-for-service with an empty bed behind it, a readmission can be revenue-neutral or positive. Under a value-based arrangement it is a direct loss. The same clinical improvement has a different financial value at two buildings in the same portfolio.

Questions from this piece

What is a realistic readmission reduction from a clinical AI tool?

A 10 to 20 percent relative reduction is a defensible planning assumption for a well-executed program. Larger figures appear in vendor case studies but usually reflect a favorable baseline, a concurrent staffing change, or a short measurement window.

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