In fact it results in worse outcomes.

This should surprise no one.  It is the way of mergers and acquisitions:

Hospitals continue to turn to M&A to navigate tricky industry headwinds, including lowering reimbursement and flatlining admissions as patients increasingly turn to alternate, cheaper sites of care. Provider trade associations maintain consolidation lowers costs and improves operations, which trickles down to better care for patients.

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Thursday’s study analyzed CMS data on hospital quality and Medicare claims from 2007 through 2016 and data on hospital M&A from 2009 to 2013 to look at hospital performance before and after acquisition, compared with a control group that didn’t see a change in ownership.

American Hospital Association General Counsel Melinda Hatton took aim at the study’s methods to refute its findings, especially its reliance on a common measure of patient experience called HCAHPS.

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The results contradict a widely decried AHA-funded study last year conducted by Charles River Associates that found consolidation improves quality and lowers revenue per admission in the first year prior to integration. The research came quickly under fire by academics and patient advocates over potential cherrypicked results.

A spate of previous studies found hospital tie-ups raise the price tag of care on payers and patients. Congressional advisory group MedPAC found both vertical and horizontal provider consolidation are correlated with higher healthcare costs, the brunt of which is often borne by consumers in the form of higher premiums and out-of-pocket costs.

There is nothing that the finance industry, which makes bank on fees from M&A activity, cannot ruin.