Table 3. Taxable¹ Receipts, by Type of Service Provided in Offices and Clinics of Doctors of Medicine: Calendar Years 1991-92.

Type of Services	1991	1992
	Amount in Millions
Total Receipts	$124,456	$134,986
Services Delivered in a Doctor's Office	51,360	56,922
Services Delivered in a Hospital	44,623	46,391
Inpatient	29,929	30,568
Outpatient	14,694	15,823
Services Delivered in Other Locations2	1,174	973
Laboratory and X-Ray Services	19,972	20,289
Merchandise Sales3	1,434	1,620
Other Sources4	5,893	8,791
	Percent Distribution
Total Receipts	100.0	100.0
Services Delivered in a Doctor's Office	41.3	42.2
Services Delivered in a Hospital	35.9	34.4
Inpatient	24.0	22.6
Outpatient	11.8	11.7
Services Delivered in Other Locations2	0.9	0.7
Laboratory and X-Ray Services	16.0	15.0
Merchandise Sales3	1.2	1.2
Other Sources4	4.7	6.5

¹NHE estimates of physician services also include receipts of tax-exempt physician offices and clinics (including HMOs), clinics and offices of osteopathic physicians, and receipts of independently billing laboratories.

²Includes patient care services delivered in a nursing home or private residence.

³Includes receipts from the sale of prescription and non-prescription drugs, optical goods, and orthopedic appliances.

⁴Includes receipts not elsewhere classified.

SOURCE: (U.S. Bureau of the Census, 1984-92).