The Medicare program is the source of a small fortune for many U.S. doctors, according to a trove of government records that reveal unprecedented details about physician billing practices around the nation.

The government insurance program for older people paid nearly 4,000 physicians in excess of $1 million each in 2012, according to the new data. Those figures do not include what the doctors billed private insurance companies.

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Doctors who specialize in opthalmology, oncology and pathology are the most common in the top ranks of Medicare payments. Costly specialties often result in costly bills. shutterstock

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The release of the information gives the public access for the first time to the billing practices of individual doctors nationwide. Consumer groups and news outlets have pressured Medicare to release the data for years. And in doing so Wednesday, Medicare officials said they hope the data will expose fraud, inform consumers and lead to improvements in care.

The American Medical Association and other physician groups have resisted the data release, arguing that the information violates doctor privacy and that the public may misconstrue details about individual doctors.

COSTLY SPECIALTIES, COSTLY BILLS

Among the highest billers were a cardiologist in Ocala, Fla., who took in $18.1 million, mainly putting in stents; a New Jersey pathologist who received $12.6 million performing tissue exams and other tests; and a Michigan vascular surgeon who got $10.1 million.

Some of the highest billing totals may simply reflect a physician who is extremely efficient or who has an unusually large number of Medicare patients.

The highest numbers also may reflect a physician who specializes in procedures that require costly overhead, and in those cases, a large portion of the money may wind up not with the doctor but with pharmaceutical companies or makers of medical devices.

But in some instances, the extremely high billing totals could signal fraudulent doctor behavior, as government inspectors have previously found.

Indeed, three of the top 10 earners already had drawn scrutiny from the federal government, and one of them is awaiting trial on federal fraud charges.

The greatest tallies also may signal that the Medicare payments for some procedures are too high for the amount of work involved or that perverse incentives lead doctors to overuse a procedure.

The specialties most common at the top ranks of the Medicare payments were opthalmologists, oncologists and pathologists.

This information gives the public “unprecedented access to information about the number and type of health-care services” doctors provided during the year, Jonathan Blum, principal deputy administrator of the Centers for Medicare and Medicaid Services, said in a blog post.

Overall, the information covers $77 billion in billing involving 880,000 practitioners in 2012.

The AMA has warned that the data could contain errors, and in some cases, one doctor’s billing number may have been used by multiple support personnel for billing purposes.

In addition, the billing figures reflect what a doctor receives in payment but does not show the actual profit after paying for equipment, support personnel and malpractice insurance. For some procedures, the overhead can reach three-quarters or more of the payment amount.

Many of the highest billers, for example, were in fields with unusually high expenses, and that was likely to limit their personal share of the money. Using the assumptions that Medicare and the AMA make when setting payment rates, only 23 of the 4,000 biggest billers personally earned $1 million or more, according to a Washington Post analysis.

“The AMA is concerned that CMS’ broad approach to releasing physician payment data will mislead the public into making inappropriate and potentially harmful treatment decisions and will result in unwarranted bias against physicians that can destroy careers,” Ardis Dee Hoven, president of the AMA, said in a statement. “We have witnessed these inaccuracies in the past.”

But consumer and public interest groups argued that the information will help consumers make better decisions.

“This data is important because it will make it possible for consumers to identify physicians that will best meet their needs,” said Robert Krughoff, president of Consumers’ Checkbook, a group that began seeking the release of this information in 2005 and eventually sued for it.

For example, it will allow consumers to know which doctors are most experienced in a given operation. Studies have shown that in several types of surgery, volume matters: Surgeries by doctors who have performed the procedure enough times are less likely to end with the patient’s death.

As for the potential that the information might misrepresent a physician’s practice, Krughoff said, “the consumer organizations that have pushed for release of this information have a strong obligation to make sure that the information is used properly. But I believe in the marketplace of ideas.”

USING EXPENSIVE DRUGS

Of the doctors who were paid at least $1 million by Medicare in 2012, 879 were ophthalmologists, who relied on using a more expensive drug, Lucentis.

Some physicians have suggested that using Lucentis is wasteful because a much cheaper alternative exists.

“There is no advantage of using Lucentis over Avastin – as six randomized clinical trials have shown they’re equivalent,” said Philip Rosenfeld, a Miami ophthalmologist who has pioneered the use of the less-expensive drug.

Indeed, government inspectors have noted that instances of billing disputes and potential fraud may occur more frequently among the highest Medicare billers.

A December report from the Health and Human Services, for example, analyzed the records of 303 physicians who were paid more than $3 million by Medicare in a year. It found that 13 were responsible for overpayments totaling $34 million, six faced payment reviews, three had their licenses suspended and two were indicted.

The second-highest biller in 2012 was Asad U. Qamar, a cardiologist in Ocala. Qamar made headlines last year after a Reuters report detailed large donations the doctor had made to the Obama administration’s agenda and a detailed federal review of his billing practices.

He told Reuters that he had seen “tremendous harassment of the physician community.”

The seventh-highest biller is Farid Fata, a cancer doctor in the Detroit area. He received $10.6 million in Medicare payments in 2012. Fata was arrested in August and is awaiting trial in a $225 million Medicare fraud case, accused of intentionally misdiagnosing illnesses and ordering unnecessary treatments, including chemotherapy for patients who did not have cancer.

Federal authorities say that Fata, who owned and operated two health-care companies, fraudulently billed Medicare from August 2007 to July 13, 2013. He also is accused of conspiracy to pay and receive kickbacks to providers of home health services and hospice services in return for referring patients.

He has denied any wrongdoing.

Not all of the highest billers have faced such scrutiny, however. The fourth-highest biller on the list is a department chairman at the Mayo Clinic in Rochester, Minn.

The data release is expected to answer a much broader array of questions than who billed the most.

One of the persistent mysteries of U.S. health care, for example, is why some surgeries are performed much more frequently in some areas of the country than in others.

The data may allow researchers to take a closer look at individual doctors to find answers.

Jonathan Skinner, a Dartmouth economist, acknowledged that some doctors “may feel that their privacy has been compromised” with the dissemination of their billing records.

But, he said, “as earlier reporting has shown, there are people who are operating in the gray area of health care who are causing Medicare to spend enormous amounts on health care that may be harmful to their patients.”

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