TABLE 8.3.

Clinical Laboratories Registered by the Center for Medicare and Medicaid Services (CMS) by Annual Test Volume, August 2004

Annual Test Volume	Total Number of Laboratories	Percentage of Laboratories	Physician Office Laboratories	Percentage of Physician Office Laboratories
≤2000	8,955	43.1%	6,998	51.1%
2001–10,000	6,212	29.9%	4,469	32.7%
10,001–25,000	2,347	11.4%	1,206	8.7%
25,001–50,000	1,303	6.3%	475	3.5%
50,001–75,000	643	3.1%	207	1.5%
75,001–100,000	384	1.8%	111	0.8%
100,001–500,000	789	3.8%	221	1.5%
500,001–1,000,000	74	0.4%	19	0.1%
>1,000,000	51	0.2%	1	0.1%
	20,758	100%	13,697	100%