Exhibit 2.

Wait and Arrival Times by Patient and Visit Characteristics

	Share of visits	Wait timea		Arrival timeb
		Median	% over 20 min	Median	% on time
	(1)	(2)	(3)	(4)	(5)
All	100.0	4.1	17.0	−5.7	67.6
Age
<5	8.2	4.0	13.4	−2.8	59.9
5-14	9.1	3.7	14.3	−3.8	62.4
15-24	8.7	4.6	16.7	−3.3	61.0
25-44	20.5	4.8	17.7	−3.8	62.4
45-64	27.9	4.1	17.8	−6.3	69.8
65+	25.6	3.2	17.8	−8.7	76.0
Gender
Female	61.2	4.3	17.5	−5.3	66.8
Male	38.8	3.6	16.2	−6.2	69.0
Primary insurance
Private	63.1	4.1	16.3	−5.0	66.5
Medicaid	10.8	4.6	18.0	−4.5	62.9
Medicare	20.9	3.3	18.1	−8.5	75.0
Self-pay	3.3	5.2	19.5	−3.6	60.6
Other	1.9	4.1	19.2	−5.3	64.8
Time of day
Before 10am	25.5	3.8	14.4	−4.6	65.3
10am - 12pm	27.2	4.6	19.5	−6.2	69.0
12pm - 2pm	14.6	3.8	15.2	−5.3	66.8
2pm - 4pm	24.6	4.3	18.3	−6.4	69.3
After 4pm	8.1	3.2	15.9	−5.6	66.8
Practice sizec
1	6.1	5.1	23.4	−3.9	60.9
2	5.0	4.1	17.7	−4.7	64.9
3-5	12.0	4.0	16.8	−5.4	67.7
6-10	11.7	4.0	15.9	−5.3	67.7
>10	65.3	4.0	16.6	−6.0	68.5

SOURCE Author’s analysis of data from athenahealth. NOTES Table is based on the baseline sample (N=21.4 million). Each observation represents an outpatient visit.

^aWait time is the time (in minutes) between the patient’s check-in time or the appointment’s scheduled time (whichever is latest) and the time the patient is seen by a medical practitioner.

^bArrival time is the difference (in minutes) between the time the patients checks in and the appointment’s scheduled time. Negative values imply early arrival; Positive values imply late arrival.

^cPractice size represents the number of medical practitioners filing claims at the practice.