Medicare: Focus on Physician Practice Patterns Can Lead to Greater Program Efficiency

GAO-07-307 April 30, 2007
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Summary

The Medicare Prescription Drug, Improvement, and Modernization Act of 2003 (MMA) directed GAO to study the compensation of physicians in traditional fee-for service (FFS) Medicare. GAO explored linking physician compensation to efficiency--defined as providing and ordering a level of services that is sufficient to meet a patient's health care needs but not excessive, given the patient's health status. In this report, GAO (1) estimates the prevalence in Medicare of physicians who are likely to practice inefficiently, (2) examines physician-focused strategies used by health care purchasers to encourage efficiency, and (3) examines the potential for the Centers for Medicare and Medicaid Services (CMS) to profile physicians for efficiency and use the results. To do this, GAO developed a methodology using 2003 Medicare claims data to compare generalist physicians' Medicare practices with those of their peers in 12 metropolitan areas. GAO also examined 10 health care purchasers that profile physicians for efficiency.

Based on 2003 Medicare claims data, GAO's analysis found outlier generalist physicians--physicians who treat a disproportionate share of overly expensive patients--in all 12 metropolitan areas studied. Outlier generalists and other generalists saw similar numbers of Medicare patients and their respective patients averaged the same number of office visits. However, after taking health status and location into account, GAO found that Medicare patients who saw an outlier generalist--compared with those who saw other generalists--were more likely to have been hospitalized, more likely to have been hospitalized multiple times, and more likely to have used home health services. By contrast, they were less likely to have been admitted to a skilled nursing facility. Certain public and private health care purchasers routinely evaluate physicians in their networks using measures of efficiency and other factors. The 10 health care purchasers in our study profiled physicians--that is, compared physicians' performance to an efficiency standard to identify those who practiced inefficiently. To measure efficiency, the purchasers we spoke with generally compared actual spending for physicians' patients to the expected spending for those same patients, given their clinical and demographic characteristics. Most of the 10 purchasers also evaluated physicians on quality. To encourage efficiency, all 10 purchasers linked their physician evaluation results to a range of incentives--from steering patients toward the most efficient providers to excluding physicians from the purchaser's provider network because of inefficient practice patterns. CMS has tools available to evaluate physicians' practices for efficiency but would likely need additional authorities to use results in ways similar to other purchasers. CMS has a comprehensive repository of Medicare claims data to compute reliable efficiency measures for most physicians serving Medicare patients and has substantial experience using methods that adjust for differences in patients' health status. However, CMS may not currently have the flexibility that other purchasers have to link physician profiling results to a range of incentives encouraging efficiency. Implementation of other strategies to encourage efficiency would likely require legislation. CMS said that our recommendation was timely and that our focus on the need for risk adjustment in measuring physician resource use was particularly helpful. However, CMS only discussed using profiling results for educating physicians. GAO believes that the optimal profiling effort would include financial or other incentives to encourage efficiency and would measure the effort's impact on Medicare. GAO concurs with CMS that this effort would require adequate funding.



Recommendations

Our recommendations from this work are listed below with a Contact for more information. Status will change from "In process" to "Open," "Closed - implemented," or "Closed - not implemented" based on our follow up work.

Director:
Team:
Phone:
Alan Bruce Steinwald
Government Accountability Office: Health Care
No phone on record


Recommendations for Executive Action


Recommendation: Given the contribution of physicians to Medicare spending in total, the Administrator of CMS should develop a profiling system that identifies individual physicians with inefficient practice patterns and, seeking legislative changes as necessary, use the results to improve the efficiency of care financed by Medicare. The profiling system should include total Medicare expenditures as the basis for measuring efficiency.

Agency Affected: Department of Health and Human Services: Centers for Medicare and Medicaid Services

Status: Open

Comments: CMS is in the process of developing a physician profiling and feedback system. In May 2008, the agency awarded a contract to Mathematica Policy Research (MPR) to develop and disseminate Resource Use Reports (RURs) to physicians in a phased, pilot approach. The RURs will focus on the following: (1) risk adjustment, (2) attribution of cost, and (3) benchmarking. CMS and MPR are using commercially-available episode grouper technology to divide Medicare fee-for-service claims data into clinically homogeneous episodes of care. Specifically, this work will address GAO's recommendation to include total Medicare expenditures as a basis for measuring efficiency by using a per capita analysis for measuring cost of care in addition to pursuing an episode of care framework.

Recommendation: Given the contribution of physicians to Medicare spending in total, the Administrator of CMS should develop a profiling system that identifies individual physicians with inefficient practice patterns and, seeking legislative changes as necessary, use the results to improve the efficiency of care financed by Medicare. The profiling system should include adjustments for differences in patients' health status.

Agency Affected: Department of Health and Human Services: Centers for Medicare and Medicaid Services

Status: Open

Comments: CMS is in the process of developing a physician profiling and feedback system. In May 2008, the agency awarded a contract to Mathematica Policy Research (MPR) to develop and disseminate Resource Use Reports (RURs) to physicians in a phased, pilot approach. The RURs will focus on (1) risk adjustment, (2) attribution of cost, and (3) benchmarking. CMS and MPR are using commercially-available episode grouper technology to divide Medicare fee-for-service claims data into clinically homogeneous episodes of care. Specifically, this work addresses GAO's recommendation to adjust for differences in patients' health status by applying both: (1) the HCC patient adjuster methodology and (2) severity of illness levels within each episode of care.

Recommendation: Given the contribution of physicians to Medicare spending in total, the Administrator of CMS should develop a profiling system that identifies individual physicians with inefficient practice patterns and, seeking legislative changes as necessary, use the results to improve the efficiency of care financed by Medicare. The profiling system should include empirically based standards that set the parameters of efficiency.

Agency Affected: Department of Health and Human Services: Centers for Medicare and Medicaid Services

Status: Open

Comments: CMS is in the process of developing a physician profiling and feedback system. In May 2008, the agency awarded a contract to Mathematica Policy Research (MPR) to develop and disseminate Resource Use Reports (RURs) to physicians in a phased, pilot approach. The RURs will focus on (1) risk adjustment, (2) attribution of cost, and (3) benchmarking. CMS and MPR are using commercially-available episode grouper technology to divide Medicare fee-for-service claims data into clinically homogeneous episodes of care. Specifically, this work will address GAO's recommendation to include efficiency standards through the application of cost of care benchmarks to both: (1) specialty and (2) geography.

Recommendation: Given the contribution of physicians to Medicare spending in total, the Administrator of CMS should develop a profiling system that identifies individual physicians with inefficient practice patterns and, seeking legislative changes as necessary, use the results to improve the efficiency of care financed by Medicare. The profiling system should include a physician education program that explains to physicians how the profiling system works and how their efficiency measures compare with those of their peers.

Agency Affected: Department of Health and Human Services: Centers for Medicare and Medicaid Services

Status: Open

Comments: CMS is in the process of developing a physician profiling and feedback system. In May 2008, the agency awarded a contract to Mathematica Policy Research (MPR) to develop and disseminate Resource Use Reports (RURs) to physicians in a phased, pilot approach. The RURs will focus on (1) risk adjustment, (2) attribution of cost, and (3) benchmarking. CMS and MPR are using commercially-available episode grouper technology to divide Medicare fee-for-service claims data into clinically homogeneous episodes of care. Specifically, this work will address GAO's recommendation to pursue an education program that explains to physicians how the RURs are populated and how episodes of care and per capita spending for their patients compare with that of their peers.

Recommendation: Given the contribution of physicians to Medicare spending in total, the Administrator of CMS should develop a profiling system that identifies individual physicians with inefficient practice patterns and, seeking legislative changes as necessary, use the results to improve the efficiency of care financed by Medicare. The profiling system should include financial or other incentives for individual physicians to improve the efficiency of the care they provide.

Agency Affected: Department of Health and Human Services: Centers for Medicare and Medicaid Services

Status: Open

Comments: CMS is in the process of implementing a physician profiling and feedback system. In May 2008, the agency awarded a contract to Mathematica Policy Research (MPR) to develop and disseminate Resource Use Reports (RURs) to physicians in a phased, pilot approach. The RURs will provide feedback to physicians, including identifying inefficient practice patterns. CMS has actively pursued legislation addressing physician cost of care measurement. CMS leadership has articulated the goal of using financial and other incentives to improve the efficiency of physician care.

Recommendation: Given the contribution of physicians to Medicare spending in total, the Administrator of CMS should develop a profiling system that identifies individual physicians with inefficient practice patterns and, seeking legislative changes as necessary, use the results to improve the efficiency of care financed by Medicare. The profiling system should include methods for measuring the impact of physician profiling on program spending and physician behavior.

Agency Affected: Department of Health and Human Services: Centers for Medicare and Medicaid Services

Status: Open

Comments: CMS is in the process of developing a physician profiling and feedback system. In May 2008, the agency awarded a contract to Mathematica Policy Research (MPR) to develop and disseminate Resource Use Reports (RURs) to physicians in a phased, pilot approach. Subsequent work is planned to evaluate the impact of physician RURs on Medicare program spending and physician behavior.


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