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Counting physicians: inconsistencies in a commonly used source for workforce analysis
Gary L Freed1, Tammie A Nahra, John R C Wheeler
1Division of General Pediatrics, University of Michigan, 300 N. Ingalls Building 6E08, Ann Arbor, MI 48109-0456, USA. gfreed@med.umich.edu
Insights
The AMA Masterfile inaccurately lists pediatric cardiologists, with many physicians lacking required training. This data discrepancy can lead to flawed healthcare policy decisions.
Area of Science:
- Cardiology
- Medical Education
- Health Policy
Background:
- The accuracy of physician databases is crucial for healthcare planning and resource allocation.
- The American Medical Association (AMA) Masterfile is a widely used physician directory.
- Verification of specialist credentials, such as pediatric cardiology training, is essential.
Purpose of the Study:
- To evaluate the accuracy of the AMA Masterfile in identifying qualified pediatric cardiologists.
- To compare the AMA Masterfile's physician data with records from the American Board of Pediatrics (ABP).
Main Methods:
- A comparison was made between the AMA Masterfile and the ABP's roster of trained pediatric cardiologists.
- Physicians on the AMA Masterfile without ABP verification underwent a mail survey.
- Data collected included training details, practice focus, and procedures performed.
Main Results:
- Only 58% of physicians were listed in both the AMA Masterfile and ABP records.
- 28% of physicians were listed in the AMA Masterfile exclusively.
- Of those exclusively on the AMA Masterfile, 40% reported providing no pediatric cardiology care, and training varied significantly among the rest.
Conclusions:
- Significant discrepancies exist between the AMA Masterfile and ABP data regarding pediatric cardiologists.
- A substantial number of physicians may be practicing pediatric cardiology with inadequate training.
- Inaccurate physician data can result in ineffective or misaligned healthcare policies.
Purpose:
To assess the accuracy of the AMA Masterfile.
Method:
In 2002, the authors compared the listing in the Masterfile for pediatric cardiologists with a roster of all such physicians documented by the American Board of Pediatrics (ABP) to have completed pediatric cardiology training. Physicians listed on the Masterfile but without ABP records of training completion received a mail survey. For main outcome measures, the differences in state-level distribution of pediatric cardiologists were used, depending on whether data were from the ABP or the AMA Masterfile. Survey items included nature and duration of medical training, the amount of time caring for pediatric or adult cardiology patients, and whether the respondent conducted echocardiograms and/or cardiac catheterizations on children and/or adults.
Results:
Of the 2,675 unique, individual physicians obtained from the queries of both lists, 58% (1,558) were listed by both the Masterfile and the ABP. Another 28% (738) were listed by the AMA Masterfile only, and 4% (108) were listed by the ABP only.Of those listed by the Masterfile only, 40% reported they provide no pediatric cardiology care. The amount of pediatric cardiology training was highly variable among the remainder of the respondents.
Conclusions:
There are large differences in the number and distribution of physicians identified as pediatric cardiologists between these two datasets. Also, many are potentially providing care for which they have little or no training. Use of such data has the potential to lead to policy options at odds with the actual needs of our nation as a whole or of specific geographic areas.
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