| 23. | Concentrations |
Approximately 66% of total U.S. dialysis and related lab services net revenues in 2013, 2012 and 2011 are from government-based programs, principally Medicare and Medicaid. Related accounts receivable and other receivables from Medicare, including Medicare-assigned plans, and Medicaid, including Medicaid-assigned plans, were approximately $679,006 and $629,178, respectively as of December 31, 2013 and 2012.
Approximately 69% of HCP’s revenues in 2013 are from government-based programs, principally Medicare and Medicaid. Approximately 67% of HCP’s capitated and patient services revenues (medical revenues) are associated with three health plans and in addition, approximately 69% of HCP’s accounts receivables are associated with three health plans.
No single payor accounted for more than 10% of total consolidated accounts receivable at December 31, 2013 and 2012.
EPO is a significant physician-prescribed pharmaceutical that is administered during dialysis and is provided by a sole supplier, Amgen. The amount of EPO that is separately billable accounted for approximately 3% of U.S. dialysis and related lab services net revenues in 2013 and 2012. As long as certain conditions are met by the Company, the agreement with Amgen limits their ability to unilaterally decide to increase the price it charges the Company for EPO.