When a DME management company quotes you a per diem rate, it usually sounds simple. One number. Per patient per day. Easy to understand and easy to compare.
What that number doesn't tell you is everything it depends on - your patient census, your utilization patterns, your formulary, and what happens when a patient needs something that isn't on the list. By the time your first invoice arrives, the per diem you agreed to may look very different from the total you owe.
Here's how a hospice DME per diem actually gets built, and what you need to know before you agree to one.
A per diem rate is a flat daily charge applied to each patient on your census. If your per diem is $6.35 and you have 80 patients, your base DME charge for the month is approximately $6.35 x 80 patients x 30 days, minus any partial-month adjustments for admissions and discharges.
The per diem is designed to cover your formulary items - the standard equipment most hospice patients need. That includes beds, mattresses, wheelchairs, commodes, walkers, and oxygen systems at their standard configurations. Everything on that list is included in the flat rate.
The per diem does not cover everything. That's where the calculation gets more complicated.
Most DME management companies set your per diem based on a few key inputs:
When you see two per diem quotes side by side, you are not looking at the same product unless the formularies are identical. A low per diem with a narrow formulary will almost always cost more in practice than a higher per diem with a comprehensive one.
Your formulary is the list of items covered by your per diem rate. Every item on the formulary is included in the flat daily charge. Every item not on the formulary is billed separately, at a rate outside the per diem.
Those outside-the-formulary charges are called non-formulary spend. This is where most hospices get surprised.
If your formulary doesn't include alternating pressure mattresses, every time a patient needs one, you get a separate charge. If it doesn't include specialty positioning equipment, every bariatric order is an add-on. Non-formulary charges can double or triple your effective per-patient DME cost for certain patient populations.
Beyond non-formulary items, a few other charges typically live outside the per diem:
Before you sign a per diem contract, the question to ask is not "what is your rate?" The question is "what exactly does that rate include, and what will I be charged on top of it?"
Do You Know Your All-In Hospice DME Spend?
When you're evaluating two or more DME management companies, comparison is harder than it looks. Here's a framework that gives you an apples-to-apples view:
The management company that takes the time to do that analysis with you, using your data, is showing you something about how they'll operate as a partner.
One of the most common billing questions in demos: what happens to the per diem when a patient discharges or passes mid-month?
In a well-integrated system, the answer is clean. When your EMR sends a discharge or death status, the DME system receives it and triggers an automatic pickup request. Billing stops as of the date the discharge is recorded - not the end of the month, not when the vendor confirms the pickup.
That integration is important. Without it, billing continues until someone manually stops it. If your census is high and your admissions/discharges are frequent, the difference adds up.
When per diem structure, formulary scope, and billing integration are all working together, DME billing becomes predictable. Finance teams can forecast what DME will cost in a given month based on census alone. Surprises on the invoice go from routine to rare.
Crossroads Hospice is one example. Working with Qualis, they reduced their annual DME spend by $2.5M - not through cuts to care, but through better visibility into what they were spending, why, and where the waste was hiding.
That kind of result starts with understanding your per diem in detail - not just the number on the proposal.
If you want to understand what your per diem should look like based on your census, your geography, and your patient population, the conversation starts at https://qualis.com/contact-us.