Unveiling the Dynamics of Hospital Ownership
Dr. Glatter: A recent study done by two PhDs looked at 2019 data on 20 of the most expensive diagnosis-related groups (DRGs). It examined the cost savings, and we’re talking over $1 billion in expenditures when you look at the data from general acute care hospitals vs physician-owned hospitals. This is what appears to me to be a key driver of the push to loosen restrictions on physician-owned hospitals. Isn’t that correct?
Dr. Miller: I would say that’s one of many components. There’s more history to this issue. I remember sitting at a think tank talking to someone several years ago about hospital consolidation as an issue. We went through the usual levers that us policy wonks go through. We talked about antitrust enforcement, certificate of need, rising hospital costs from consolidation, lower quality (or at least no quality gains, as shown by a New England Journal of Medicine study), and decrements in patient experience that result from the diseconomies of scale. They sort of pooh-poohed many of the policy ideas. They basically said that there was no hope for hospital consolidation as an issue.
Well, what about physician ownership? I started with my research team to comb through the literature and found a variety of studies — some of which were sort of entertaining, because they’d do things like study physician-owned specialty hospitals, nonprofit-owned specialty hospitals, and for-profit specialty hospitals and compare them with nonprofit or for-profit community hospitals, and then say physician-owned hospitals that were specialty were bad.
They mixed ownership and service markets right there in so many ways, I’m not sure where to start. My team did a systematic review of around 30 years of research, looking at the evidence base in this space. We found a couple of things.
We found that physician-owned community hospitals did not have a cost or quality difference, meaning that there was no definitive evidence that the physician-owned community hospitals were cheaper based on historical evidence, which was very old. That means there’s not specific harm from them. When you permit market entry for community hospitals, that promotes competition, which results in lower prices and higher quality.
Then we also looked at the specialty hospital markets — surgical specialty hospitals, orthopedic surgical specialty hospitals, and cardiac hospitals. We noted for cardiac hospitals, there wasn’t clear evidence about cost savings, but there was definitive evidence of higher quality, from things like 30-day mortality for significant procedures like treatment of acute MI, triple A repair, stuff like that.
For orthopedic surgical specialty hospitals, we noted lower costs and higher quality, which again fits with operationally what we would know. If you have a facility that’s doing 20 total hips a day, you’re creating a focused factory. Just like if you think about it for interventional cardiology, your boards have a minimum number of procedures that you have to do to stay certified because we know about the volume-quality relationship.
Then we looked at general surgical specialty hospitals. There wasn’t enough evidence to make a conclusive thought about costs, and there was a clear trend toward higher quality. I would say this recent study is important, but there is a whole bunch of other literature out there, too.