Health insurers have forced consumers to pay billions of dollars in medical bills that the insurers themselves should have paid, according to a report released yesterday by the staff of the Senate Commerce Committee.

The report was part of a multi-pronged assault on the credibility of private insurers by Commerce Committee Chairman John D. Rockefeller IV (D-W.Va.). It came at a time when Rockefeller, President Obama and others are seeking to offer a public alternative to private health plans as part of broad health-care reform legislation. Health insurers are doing everything they can to block the public option.

At a committee hearing yesterday, three health-care specialists testified that insurers go to great lengths to avoid responsibility for sick people, use deliberately incomprehensible documents to mislead consumers about their benefits, and sell "junk" policies that do not cover needed care. Rockefeller said he was exploring "why consumers get such a raw deal from their insurance companies."

The star witness at the hearing was a former public relations executive for major health insurers whose testimony boiled down to this: Don't trust the insurers.

What drove Potter from the health insurance business was, well, the health insurance business. The industry, Potter says, is driven by "two key figures: earnings per share and the medical-loss ratio, or medical-benefit ratio, as the industry now terms it. That is the ratio between what the company actually pays out in claims and what it has left over to cover sales, marketing, underwriting and other administrative expenses and, of course, profits."

Think about that term for a moment: The industry literally has a term for how much money it "loses" paying for health care.

The best way to drive down "medical-loss," explains Potter, is to stop insuring unhealthy people. You won't, after all, have to spend very much of a healthy person's dollar on medical care because he or she won't need much medical care. And the insurance industry accomplishes this through two main policies. "One is policy rescission," says Potter. "They look carefully to see if a sick policyholder may have omitted a minor illness, a pre-existing condition, when applying for coverage, and then they use that as justification to cancel the policy, even if the enrollee has never missed a premium payment." [...]

Potter also emphasized the practice known as "purging." This is where insurers rid themselves of unprofitable accounts by slapping them with "intentionally unrealistic rate increases." One famous example came when Cigna decided to drive the Entertainment Industry Group Insurance Trust in California and New Jersey off of its books. It hit them with a rate increase that would have left some family plans costing more than $44,000 a year, and it gave them three months to come up with the cash.

Many Americans pay higher premiums for the freedom to go outside an insurer's network of doctors and hospitals. When they do, insurers typically pay a percentage of what they call the "usual and customary" rates for the services. How insurers determine the usual rates had long been opaque to consumers and difficult if not impossible for them to challenge.

As it turns out, insurers typically used numbers from Ingenix, a wholly owned subsidiary of the big insurer UnitedHealth Group. Ingenix had an incentive to produce benchmarks that low-balled usual and customary rates and shifted costs from insurers to their customers, the report said.

Ingenix got its data from the same insurers that bought its benchmark information, the report said. Insurers that contributed information to Ingenix often "scrubbed" their data to remove high charges, and Ingenix further manipulated the numbers, removing valid high charges from its calculations, the report said.

Cuomo found that insurers under-reimbursed New York consumers by up to 28 percent, the report said. A dozen insurers have reached settlements agreeing to change their practices; UnitedHealth agreed to the largest payment, $50 million, to help a nonprofit organization set up a new database to replace Ingenix.