16.

Contingencies

The majority of the Company’s revenues are from government programs and may be subject to adjustment as a result of: (i) examination by government agencies or contractors, for which the resolution of any matters raised may take extended periods of time to finalize; (ii) differing interpretations of government regulations by different Medicare contractors or regulatory authorities; (iii) differing opinions regarding a patient’s medical diagnosis or the medical necessity of services provided; and (iv) retroactive applications or interpretations of governmental requirements. In addition, the Company’s revenues from commercial payors may be subject to adjustment as a result of potential claims for refunds, as a result of government actions or as a result of other claims by commercial payors.

Inquiries by the Federal Government and Certain Related Civil Proceedings

2005 U.S. Attorney Investigation: In March 2005, the Company received a subpoena from the U.S. Attorney’s Office for the Eastern District of Missouri in St. Louis. The subpoena required production of a wide range of documents relating to the Company’s operations, including documents related to, among other things, pharmaceutical and other services provided to patients, relationships with pharmaceutical companies, and financial relationships with physicians and joint ventures. The subpoena covers the period from December 1, 1996 through March 2005. In October 2005, the Company received a follow-up request for additional documents related to specific medical director and joint venture arrangements. In February 2006, the Company received an additional subpoena for documents, including certain patient records relating to the administration and billing of Epogen^® (EPO). In May 2007, the Company received a request for documents related to durable medical equipment and supply companies owned and operated by the Company. The Company cooperated with the inquiry and has produced the requested documents. The subpoenas were issued in connection with a joint civil and criminal investigation. It was possible that criminal proceedings could be initiated against the Company in connection with this investigation. Until recently, the Company had not received a communication from the St. Louis U.S. Attorney’s Office on this matter for nearly three years. In early October 2012, the Company announced that the government closed its investigation without filing any charges, without demanding any payments and without seeking any changes in Company policies.

Woodard Private Civil Suit: In February 2007, the Company received a request for information from the Office of Inspector General, U.S. Department of Health and Human Services, or OIG, for documents relating to EPO claims submitted to Medicare. In August 2007, the Company received a subpoena from the OIG seeking similar documents. The requested documents relate to services provided from 2001 to 2004 by a number of the Company’s centers. The request and subpoena were sent from the OIG’s offices in Houston and Dallas, Texas. The Company cooperated with the inquiry and has produced all previously requested documents to date. The Company was contacted by the U.S. Attorney’s Office for the Eastern District of Texas, which stated that this was a civil investigation related to EPO claims. On July 6, 2009, the U.S. District Court for the Eastern District of Texas lifted the seal on the civil qui tam complaint related to these previous requests for information. The Company was subsequently served with a complaint by the relator, Ivey Woodard, purportedly on behalf of the federal government, under the qui tam provisions of the federal False Claims Act. The government did not intervene and is not actively pursuing this matter. The relator has been pursuing the claims independently and the parties have been engaged in active litigation. The complaint contains allegations relating to the Company’s EPO practices for the period from 1992 through 2010 and seeks monetary damages and civil penalties as well as costs and expenses. The court has ruled that claims earlier than 1996 are beyond the statute of limitations. The Company believes that there is some overlap between the subject of this complaint and the review of EPO utilization in the 2005 U.S. Attorney investigation described above. The Company publicly disclosed on July 3, 2012 that it had reached an agreement in principle to settle all allegations relating to claims arising out of this matter. In connection with this settlement, the Company incurred costs and expenses of $86,000 that consists of $55,000 for the settlement plus attorney fees and related expenses. In December 2012, the settlement was finalized and the case was dismissed.

Vainer Private Civil Suit: In December 2008, the Company received a subpoena for documents from the OIG relating to the pharmaceutical products Zemplar, Hectorol, Venofer, Ferrlecit and EPO, as well as other related matters. The subpoena covered the period from January 2003 to December 2008. The Company was in contact with the U.S. Attorney’s Office for the Northern District of Georgia and the U.S. Department of Justice in Washington, DC, since November 2008 relating to this matter, and was advised that this was a civil inquiry. On June 17, 2009, the Company learned that the allegations underlying this inquiry were made as part of a civil complaint filed by individuals and brought pursuant to the qui tam provisions of the federal False Claims Act. On April 1, 2011, the U.S. District Court for the Northern District of Georgia ordered the case to be unsealed. At that time, the Department of Justice and U.S. Attorney’s Office filed a notice of declination stating that the U.S. would not be intervening and not pursuing the relators’ allegation in litigation. On July 25, 2011, the relators, Daniel Barbir and Dr. Alon Vainer, filed their amended complaint in the U.S. District Court for the Northern District of Georgia, purportedly on behalf of the federal government. The allegations in the complaint relate to the Company’s drug administration practices for Vitamin D and iron agents for a period from 2003 through 2010. The complaint seeks monetary damages and civil penalties as well as costs and expenses. The Company is vigorously defending this matter and intends to continue to do so. The Company can make no assurances as to the time or resources that will be needed to devote to this litigation or its final outcome.

2010 U.S. Attorney Physician Relationship Investigation: In May 2010, the Company received a subpoena from the OIG’s office in Dallas, Texas. The civil subpoena covers the period from January 1, 2005 to May 2010, and seeks production of a wide range of documents relating to its dialysis and related lab services, including documents related to, among other things, financial relationships with physicians and joint ventures, and whether those relationships and joint ventures comply with the federal anti-kickback statute and the False Claims Act. Some of the requested documents overlap with documents requested pursuant to the subpoena in the 2011 U.S. Attorney Physician Relationship Investigation described below. The Company is cooperating with the government and is producing the requested documents. However, the Company has been advised by the attorneys conducting this civil investigation that they believe that the general structure of the Company’s joint ventures does not comply with the anti-kickback statute and the False Claims Act. The Company disagrees that its joint venture structure, which the Company believes is widely used in the dialysis industry and other segments of the healthcare industry substantially in the form that the Company uses it, violates the federal anti-kickback statute or the False Claims Act. This investigation will continue to require management’s attention and significant legal expense, and the Company can make no assurances as to the final outcome.

2011 U.S. Attorney Physician Relationship Investigation: In August 2011, the Company announced it had learned that the U.S. Attorney’s Office for the District of Colorado would be looking into certain activities of its dialysis business in connection with information being provided to a grand jury. This investigation relates to the Company’s relationships with physicians, including its joint ventures, and whether those relationships and joint ventures comply with the federal anti-kickback statute, and appears to overlap, at least in part, with the 2010 U.S. Attorney Physician Relationship Investigation described above. The Company has received a number of subpoenas for documents covering the period from January 2006 to November 2012, and the Company has produced and continues to produce documents in response to those subpoenas and other requests. In addition, certain current and former members of the Board, executives and other teammates have received subpoenas to testify before the grand jury. It is possible that criminal proceedings may be initiated against the Company in connection with this investigation. This investigation will continue to require management’s attention and significant legal expense, and the Company can make no assurances as to the final outcome.

2011 U.S. Attorney Medicaid Investigation: In October 2011, the Company announced that it would be receiving a request for documents, which could include an administrative subpoena from the Office of Inspector General for the U.S. Department of Health and Human Services. Subsequent to the Company’s announcement of this 2011 U.S. Attorney Medicaid Investigation, the Company received a request for documents in connection with the inquiry by the U.S. Attorney’s Office for the Eastern District of New York. The request relates to payments for infusion drugs covered by Medicaid composite payments for dialysis. The Company believes this inquiry is civil in nature. The Company does not know the time period or scope. The Company understands that certain other providers that operate dialysis clinics in New York may be receiving or have received a similar request for documents. The Company is cooperating with the government and is producing the requested documents.

Clark Shareholder Derivative Civil Suit: As the Company previously disclosed, on August 7, 2012, a shareholder derivative lawsuit was filed in the U.S. District Court for the District of Colorado against certain current and former directors and executives of the Company and against the Company, as nominal defendant. The complaint alleges, among other things, that certain of the Company’s current and past officers and directors breached fiduciary duties to the Company relating to the previously disclosed inquiries by the federal government and qui tam proceedings described above. On October 12, 2012, the parties filed a joint motion to stay the case for an indefinite period as in the best interests of the Company and to conserve judicial resources. On October 19, 2012, the Court denied the stay motion but ordered that the case be administratively closed, subject to being reopened upon a showing of good cause by any party.

Turner-Hooks Private Civil Suit: In January 2013, the Company was served with a civil complaint filed by a former patient, Laura Turner-Hooks, and brought pursuant to the qui tam provisions of the federal False Claims Act purportedly on behalf of the federal government. On November 13, 2012, the U.S. District Court for the Eastern District of Michigan ordered the case to be unsealed. At that time, the Department of Justice and U.S. Attorney’s Office filed a notice of declination stating that the U.S. would not be intervening and not pursuing the relator’s allegation in litigation. The relator’s complaint, originally filed in July 2011, states that she was a patient at a single dialysis facility in Michigan and that the Company allegedly violated the federal False Claims Act by providing treatments at the facility that failed to comply with the standard of care required under federal healthcare programs. The complaint asks the court to order the Company to cease committing the alleged violations and seeks monetary damages and civil penalties as well as costs and expenses. The Company intends to vigorously defend this action.

Except for the private civil complaints filed by the relators as described above, to the Company’s knowledge, no proceedings have been initiated against the Company at this time in connection with any of the inquiries by the federal government. Although the Company cannot predict whether or when proceedings might be initiated or when these matters may be resolved, it is not unusual for inquiries such as these to continue for a considerable period of time through the various phases of document and witness requests and on-going discussions with regulators. Responding to the subpoenas or inquiries and defending the Company in the relator proceedings will continue to require management’s attention and significant legal expense. Any negative findings in the inquiries or relator proceedings could result in substantial financial penalties or awards against the Company, exclusion from future participation in the Medicare and Medicaid programs and, to the extent criminal proceedings may be initiated against the Company, possible criminal penalties. At this time, the Company cannot predict the ultimate outcome of these inquiries, or the potential outcome of the relators’ claims (except as described above), or the potential range of damages, if any.

Other

The Company has received several notices of claims from commercial payors and other third parties related to historical billing practices and claims against DVA Renal Healthcare (formerly known as Gambro Healthcare), a subsidiary of the Company, related to historical Gambro Healthcare billing practices and other matters covered by its 2004 settlement agreement with the Department of Justice and certain agencies of the U.S. government. The Company has received no further indication that any of these claims are active, and some of them may be barred by applicable statutes of limitations. To the extent any of these claims might proceed, the Company intends to defend against them vigorously; however, the Company may not be successful and these claims may lead to litigation and any such litigation may be resolved unfavorably. At this time, the Company cannot predict the ultimate outcome of this matter or the potential range of damages, if any.

A wage and hour claim, which has been styled as a class action, is pending against the Company in the Superior Court of California. The Company was served with the complaint in this lawsuit in April 2008, and it has been amended since that time. The lawsuit, as amended, alleges that the Company failed to provide meal periods, failed to pay compensation in lieu of providing rest or meal periods, failed to pay overtime, and failed to comply with certain other California Labor Code requirements. In September 2011, the court denied the plaintiffs’ motion for class certification. Plaintiffs have appealed that decision. The Company intends to continue to vigorously defend against these claims. Any potential settlement of these claims is not anticipated to be material to the Company’s consolidated financial statements.

In October 2007, the Company was contacted by the Attorney General’s Office for the State of Nevada. The Attorney General’s Office informed the Company that it was conducting a civil and criminal investigation of the Company’s operations in Nevada and that the investigation related to the billing of pharmaceuticals, including EPO. In February 2008, the Attorney General’s Office informed the Company that the civil and criminal investigation had been discontinued. The Attorney General’s Office further advised the Company that Nevada Medicaid intended to conduct audits of end stage renal disease (ESRD) dialysis providers in Nevada and such audits would relate to the issues that were the subjects of the investigation. To the Company’s knowledge, no court proceedings have been initiated against the Company at this time. Any negative audit findings could result in a substantial repayment by the Company. At this time, the Company cannot predict the ultimate outcome of this matter or the potential range of damages, if any.

In addition to the foregoing, the Company is subject to claims and suits, including from time to time, contractual disputes and professional and general liability claims, as well as audits and investigations by various government entities, in the ordinary course of business. The Company believes that the ultimate resolution of any such pending proceedings, whether the underlying claims are covered by insurance or not, will not have a material adverse effect on its financial condition, results of operations or cash flows.