The $11 blood test that costs $2,313 — at the same hospital

At HCA HealthONE Rose Medical Center in Denver, a comprehensive metabolic panel — a routine blood draw that measures kidney function, liver markers, electrolytes, and glucose — has a published price for every insurer the hospital reports a rate for. The panel is the same for everyone: one vial of blood, one lab run, one line on the bill.

The prices are not the same. In the hospital's own published price file, the cheapest insurer's median rate for this panel is $11. The priciest is $2,313 — at the same hospital, for the same test. That is a 219× difference between two insurers, written into a single document the hospital is required by federal law to post.

Neither number is a typo, an estimate, or a chargemaster sticker price. Both are negotiated rates the hospital published in its machine-readable file. What follows is what those two prices actually are, why they sit so far apart, and how much weight a reader should give each one.

The table above shows every label the hospital published for this panel, including entries that rest on a single underlying row. The very lowest of those is a single-row line, just below the figure we cite, that falls below our two-row citation floor, so we will not put a number on it. The cheapest figure we do stand behind is the eight-row Medicare-pegged line at $11, which is the low end this article quotes.

This isn't one weird row

It would be easy to write this off as a single odd line in one hospital's file. It isn't. Across the 50 procedures we track in Colorado, 91% of the hospital-and-procedure combinations where at least four insurers publish a rate show at least a twofold gap between the cheapest insurer and the priciest. Wide insurer-to-insurer spreads are the norm in this data, not the exception.

For a consumer, the practical takeaway is blunt: which insurer is on your card can matter as much as which hospital you walk into. Two people getting the identical test at the identical hospital on the same day can have completely different rates negotiated on their behalf — and the price file is one of the few places that difference is written down in public.

What those two prices actually are

The honest version of this story is more interesting than "one hospital charges wildly different prices." The two extremes are not two ordinary commercial health plans at the ends of a bell curve. They are two different kinds of line item that happen to live in the same column.

The $11 low is pegged, to the cent, to Medicare's lab fee schedule. The rate that pulls this insurer's median down matches the exact national amount Medicare's Clinical Laboratory Fee Schedule pays for this panel, and the rows behind it carry Medicare-Advantage and dual-eligible plan identifiers. The hospital's file classifies the insurer's slug as commercial, so it correctly survives into the commercial view, but the number itself is substantially a Medicare-pegged rate, not a private-PPO price. An entire cluster of insurers sits at exactly that Medicare amount, which is the fingerprint of plans tying the lab line to the Medicare floor.

The $2,313 high is a different animal again. Both rows behind it are filed under a plan label of "workers' compensation," posted by a network/repricing entity rather than a retail health plan you could buy on an exchange. It is a real, published negotiated rate — but it is the rate a workers'-comp claim would settle at through a third-party network, not what a family's commercial insurance pays for a routine annual draw.

That is the point, and it is exactly why we show the raw published numbers with the labels the hospital filed. The labels on a hospital's price file carry enormous heterogeneity: Medicare-pegged plans, repricing networks, and ordinary commercial PPOs all stack into the same list under the same heading. Naming what each extreme is — instead of quietly dropping it — is the only way to read this data honestly.

Why the spread exists

Underneath the labels, two contracting structures do most of the work. Some insurers pay a flat fee-schedule amount per lab test — a fixed dollar figure, often anchored to a public benchmark like Medicare's. Others pay a percentage of the hospital's charges, which floats up with the chargemaster sticker price and produces much larger numbers for the identical service. The first structure clusters insurers near the bottom; the second scatters them toward the top.

Rental networks and repricers add another layer. These are entities that lease access to a set of negotiated rates and resell it — so a label in a hospital's file may be a repricing intermediary or a workers'-comp network, not a brand you would recognize from an insurance card. Their lines are genuine published rates, but they answer a different question than "what does my employer's PPO pay here." The same is true of names in these files that do not look like retail insurers at all: Medicare-program entities such as PACE programs and Medicare Advantage brands, and employer- or organization-sponsored plans — heterogeneity the labels carry right alongside the household names.

There is one more thing worth weighing before trusting any single figure: how much evidence sits behind it. Our data records how many underlying rate rows feed each insurer's median. The high end here rests on just 2 rows; the low end on 8. A median built from a single row, or two, is a thinner signal than one built from a dozen — it can swing on one unusual contract line. When you read a price file, a number backed by many rows deserves more confidence than an outlier backed by one or two.

How we computed this

Every figure above is a median of the negotiated rates a hospital published for a given insurer, taken from the hospital's own machine-readable file. Where the same insurer appears under more than one label, we dedupe to the display name the carrier picker uses, so an article can never cite a number the procedure page wouldn't show. We drop sub-dollar lines — cents-level artifacts that aren't real prices — and we require at least two underlying rows before an insurer's median is eligible to be cited. A reader scanning the table will notice that the same underlying Medicare-pegged rate appears under many carrier labels, all at that low number; the "eight rows" count the underlying file rows behind the single line we cite, not the number of carriers that happen to share the rate. Ratios are computed from the unrounded rates before display rounding — which is why the multiple does not exactly equal the rounded dollar figures divided by each other.

Government payers — Medicare, Medicaid, Tricare, VA — are excluded from our headline aggregations as statutory fee-schedule floors. One honest caveat travels with that: a handful of Medicare-Advantage program lines are filed under commercial-looking insurer slugs and survive into the commercial view, which is precisely the low end of this story. We name it rather than bury it. Full definitions are on the methodology page.

What you can do

If you have a lab visit coming up, the most useful move is to find your own insurer in the data rather than reading the extremes. The comprehensive metabolic panel procedure page lets you pick your carrier and re-rank Colorado hospitals by what that carrier's plans actually pay — the same published rates this article draws on, sliced to the insurer on your card. A published rate in a hospital's price file is not a confirmation that your plan is currently in-network at that hospital — contact your insurer or the hospital to verify network status before your visit.

If you are uninsured or paying cash, the federal No Surprises Act gives you the right to a written Good Faith Estimate before scheduled care, and if the final bill comes in several hundred dollars over that estimate, you can dispute it. A published rate is a credible reference for that conversation, not a quote.