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Credit Risk Concentrations
9 Months Ended
Sep. 30, 2020
Credit Loss [Abstract]  
Credit Risk Concentrations Credit Risk Concentrations
Financial instruments that potentially subject the Company to concentrations of credit risk consist primarily of cash balances and accounts receivables. The Company’s excess cash is held with large financial institutions. The Company grants unsecured credit to its patients, most of whom reside in the service area of the Company’s facilities and are insured under third-party payor agreements. The Company’s general policy is to verify insurance coverage prior to the date of admission for patients admitted to its critical illness recovery hospitals and rehabilitation hospitals. Within the Company’s outpatient rehabilitation clinics, insurance coverage is verified prior to the patient’s visit. Within the Company’s Concentra centers, insurance coverage is verified or an authorization is received from the patient’s employer prior to the patient’s visit.
Because of the diversity in the Company’s non-governmental third-party payor base, as well as their geographic dispersion, patient accounts receivable which are due from the Medicare program represent the Company’s only significant concentration of credit risk. Approximately 15% and 19% of the Company’s accounts receivable is from Medicare at December 31, 2019, and September 30, 2020, respectively.