↵^a Therapy disciplines: PT=physical therapy, OT=occupational therapy, SLP=speech-language pathology. N=number of beneficiaries using a specified therapy discipline during 2011 (some beneficiaries utilized more than one therapy discipline during 2011). Allowed charges are the total provider payment allowed by Medicare, including both beneficiary cost sharing and Medicare provider payments. Therapy days are the total number of days for which a beneficiary received therapy. Calendar days are a count of the total days between the first visit and the last visit during the 12-month period (January 1, 2011–December 31, 2011). Therapy days per week=[(therapy days)/(calendar days)] × 7. The sample for this table is 100% of all Medicare outpatient therapy users in 2011 (N=4,898,689). Source: authors' analysis of 2011 Medicare claims and enrollment data.