Table 5. Medicare Beneficiaries: Average Submitted Charge Per Service for Assigned and Unassigned Services, 1975.

Physician Specialty	Aged: Average Submitted Charge				Disabled: Average Submitted Charge
	All Services	Assigned Services	Unassigned Services	Ratio of Assigned to Unassigned	All Services	Assigned Services	Unassigned Services	Ratio of Assigned to Unassigned
All Physicians	$19.47	$21.39	$18.95	1.13	$21.03	$23.08	$19.43	1.19
General Practice	11.35	12.19	11.12	1.10	11.25	11.96	10.80	1.11
Family Practice	11.50	12.40	11.06	1.12	11.72	12.54	10.81	1.16
Internal Medicine	15.48	17.18	14.54	1.18	16.92	19.30	14.38	1.34
Cardiovascular Disease	22.00	24.23	21.00	1.15	32.48	35.16	30.96	1.14
Dermatology	19.58	22.67	18.44	1.23	17.60	21.75	15.23	1.43
General Surgery	38.44	44.80	36.19	1.24	43.25	49.98	38.07	1.31
Otology/Rhinology/Laryngology	25.67	33.65	24.26	1.39	31.29	42.79	27.28	1.57
Ophthalmology	48.85	69.23	48.04	1.44	43.67	42.46	52.97	0.80
Orthopedic Surgery	50.30	60.73	46.30	1.31	47.98	54.01	45.98	1.17
Urology	40.71	48.23	39.82	1.21	30.44	36.60	26.59	1.38
Anesthesiology	n.a.	n.a.	n.a.	n.a.	n.a.	n.a.	n.a.	n.a.
Pathology	6.76	6.27	7.74	0.81	5.07	5.19	4.70	1.10
Radiology	18.28	17.30	19.99	0.87	18.08	17.95	18.95	0.95
Chiropractor, Licensed	9.13	9.92	8.79	1.13	9.43	9.60	9.20	1.04
Podiatry	18.57	21.59	16.04	1.35	21.87	24.82	18.41	1.35