Exhibit 99.1

Select Medical Holdings Corporation Announces Results for

Second Quarter Ended June 30, 2013 and Quarterly Cash Dividend

MECHANICSBURG, PENNSYLVANIA — August 8, 2013 — Select Medical Holdings Corporation (“Select Medical”) (NYSE: SEM) today announced results for its second quarter ended June 30, 2013 and quarterly cash dividend.

For the second quarter ended June 30, 2013, net operating revenues increased 0.9% to $756.7 million compared to $750.2 million for the same quarter, prior year.  Income from operations decreased 5.6% to $88.3 million compared to $93.5 million for the same quarter, prior year.  Net income attributable to Select Medical decreased to $27.8 million compared to $43.2 million for the same quarter, prior year.  Net income attributable to Select Medical for the second quarter ended June 30, 2013 includes a loss on early retirement of debt, net of tax, of $10.5 million associated with the prepayment of a portion of its term loans due June 2018 under its senior secured credit facilities.  The second quarter results also reflect Medicare changes that became effective on April 1, 2013, including (i) a 2% reduction in Medicare payments that was implemented as part of the automatic reduction in federal spending mandated under the Budget Control Act of 2011 (the “Sequestration Reduction”), and (ii) an increase from 25% to 50% in the multiple procedure payment reduction for therapy services as mandated by the American Taxpayer Relief Act of 2012 (the “MPPR Reduction”).  For the second quarter ended June 30, 2013, these changes reduced net operating revenues and income from operations by approximately $9.5 million and $1.7 million, respectively.  Net income before interest, income taxes, depreciation and amortization, gain (loss) on early retirement of debt, stock compensation expense, equity in earnings (losses) of unconsolidated subsidiaries and other income (expense) (“Adjusted EBITDA”) for the second quarter decreased 3.9% to $106.0 million compared to $110.3 million for the same quarter, prior year.  A reconciliation of net income to Adjusted EBITDA is presented in table VIII of this release.  Income per common share for the second quarter ended June 30, 2013 was $0.20 on a fully diluted basis compared to income per common share of $0.31 for the same quarter, prior year.  Excluding the loss related to the early retirement of debt for the second quarter ended June 30, 2013 and its related tax effects, adjusted income per common share was $0.27 per diluted share for the second quarter ended June 30, 2013.  A reconciliation of income per common share to adjusted income per common share for the second quarter ended June 30, 2013 is presented in table IX of this release.

For the six months ended June 30, 2013, net operating revenues increased 0.8% to $1,506.6 million compared to $1,494.2 million for the same period, prior year.  Income from operations decreased 7.7% to $170.8 million compared to $185.1 million for the same period, prior year.  Net income attributable to Select Medical decreased to $62.2 million compared to $84.7 million for the same period, prior year.  Net income attributable to Select Medical for the six months ended June 30, 2013 includes a loss on early retirement of debt, net of tax, of $11.4 million associated with the refinancing activity in the first and second quarter of 2013.  Additionally, the Sequestration Reduction and MPPR Reduction reduced net operating revenues and income from operations by approximately $9.5 million and $1.7

million, respectively, for the six months ended June 30, 2013.  Adjusted EBITDA for the six months ended June 30, 2013 decreased 6.1% to $206.0 million compared to $219.3 million for the same period, prior year.  A reconciliation of net income to Adjusted EBITDA is presented in table VIII of this release.  Income per common share for the six months ended June 30, 2013 was $0.44 on a fully diluted basis compared to income per common share of $0.59 for the six months ended June 30, 2012.  Excluding the loss related to the early retirement of debt and its related tax effects, adjusted income per common share was $0.53 per diluted share for the six months ended June 30, 2013.  A reconciliation of net income per share to adjusted net income per share for the six months ended June 30, 2013 is presented in table X of this release.

Specialty Hospitals

For the second quarter of 2013, net operating revenues for the specialty hospital segment increased 0.4% to $559.4 million compared to $557.1 million for the same quarter, prior year.  The Sequestration Reduction reduced net operating revenues and income from operations for the segment by approximately $9.1 million for the second quarter of 2013.  Adjusted EBITDA for the specialty hospital segment decreased 5.7% to $96.4 million compared to $102.2 million for the same quarter, prior year.  The Adjusted EBITDA margin for the segment was 17.2% for the second quarter of 2013, compared to 18.3% for the same quarter, prior year.  Certain specialty hospital key statistics for the second quarter ended June 30, 2013 and 2012 are presented in table VI of this release.

For the six months ended June 30, 2013, net operating revenues for the specialty hospital segment increased 0.6% to $1,117.1 million compared to $1,110.2 million for the same period, prior year.  The Sequestration Reduction reduced net operating revenues and income from operations for the segment by approximately $9.1 million for the six months ended June 30, 2013.  Adjusted EBITDA for the specialty hospital segment for the six months ended June 30, 2013 decreased 6.1% to $189.7 million compared to $202.1 million for the same period, prior year.  The Adjusted EBITDA margin for the segment was 17.0% for the six months ended June 30, 2013, compared to 18.2% for the same period, prior year.  Certain specialty hospital key statistics for the six months ended June 30, 2013 and 2012 are presented in table VII of this release.

Outpatient Rehabilitation

For the second quarter of 2013, net operating revenues for the outpatient rehabilitation segment increased 2.1% to $197.1 million compared to $193.1 million for the same quarter, prior year.  The Sequestration Reduction and MPPR Reduction reduced net operating revenues and income from operations for the segment by approximately $0.4 million and $1.7 million, respectively, for the second quarter of 2013.  Adjusted EBITDA for the segment for the second quarter increased 0.8% to $26.1 million compared to $25.8 million for the same quarter, prior year.  The Adjusted EBITDA margin for the segment was 13.2% for the second quarter of 2013, compared to 13.4% for the same quarter, prior year.  Certain outpatient rehabilitation key statistics for the second quarter ended June 30, 2013 and 2012 are presented in table VI of this release.

For the six months ended June 30, 2013, net operating revenues for the outpatient rehabilitation segment increased 1.4% to $389.2 million compared to $383.9 million for the same period, prior year.  The Sequestration Reduction and MPPR Reduction reduced net operating revenues and income from operations for the segment by approximately $0.4 million and $1.7 million, respectively, for the six months ended June 30, 2013.  Adjusted EBITDA for the segment for the six months ended June 30, 2013 increased 1.2% to $48.9 million compared to $48.3 million for the same period, prior year.  The Adjusted EBITDA margin for the segment was 12.6% for both the six months ended June 30, 2013 and 2012. Certain outpatient rehabilitation key statistics for the six months ended June 30, 2013 and 2012 are presented in table VII of this release.

Stock Repurchase Program

Select Medical’s board of directors has authorized a $350.0 million stock repurchase program that will remain in effect until March 31, 2014, unless further extended by the board of directors.  Stock repurchases under this program may be made in the open market or through privately negotiated transactions, and at times and in such amounts as Select Medical deems appropriate.  The timing of purchases of stock will be based upon market conditions and other factors.  Select Medical is funding this program with cash on hand or borrowings under its revolving credit facility.  Select Medical did not repurchase shares during the three months ended June 30, 2013.  During the six months ended June 30, 2013, Select Medical repurchased 1,115,691 shares at a cost of approximately $10.0 million, an average cost per share of $8.95, which includes transaction costs.  Since the inception of the program through June 30, 2013, Select Medical has repurchased 23,606,080 shares at a cost of approximately $173.6 million, an average cost per share of $7.36, which includes transaction costs.

Refinancing

On May 28, 2013 Select Medical Corporation completed its private placement of $600.0 million aggregate principal amount of its 6.375% senior notes due 2021.  Select Medical Corporation used the $587.0 million of net proceeds of the offering to prepay a portion of the term loans outstanding due 2018 under its senior secured credit facilities.

On June 3, 2013, Select Medical Corporation amended its existing senior secured credit facilities in order to extend the maturity date on $293.3 million of its $300.0 million revolving credit facility to March 1, 2018, lower the interest rate payable on its term loans due 2018 to Adjusted LIBO plus 3.00%, or Alternate Base Rate plus 2.00%, and amend the provision in such term loans from providing that Adjusted LIBO will at no time be less than 1.75% to providing that Adjusted LIBO will at no time be less than 1.00%.

Quarterly Dividend

On May 1, 2013, Select Medical’s board of directors declared a quarterly cash dividend of $0.10 per share, totaling $14.0 million.  The dividend was paid on May 30, 2013 to stockholders of record as of the close of business on May 20, 2013.

On August 7, 2013, Select Medical’s board of directors declared a quarterly cash dividend of $0.10 per share.  The dividend will be payable on or about August 30, 2013 to stockholders of record as of the close of business on August 20, 2013.

Business Outlook

Select Medical is reaffirming its prior business outlook provided in its May 2, 2013 earnings press release for net operating revenues, Adjusted EBITDA and adjusted income per common share. Select Medical continues to expect consolidated net operating revenues for the full year 2013 to be in the range of $2.925 billion to $3.025 billion, Adjusted EBITDA for the full year 2013 to be in the range of $375.0 million to $390.0 million and adjusted income per common share, which excludes the losses on early retirement of debt and their related tax effects in the first and second quarters, for the full year 2013 to be in the range of $0.87 to $0.94.  Select Medical now expects fully diluted income per common share for the full year 2013 to be in the range of $0.78 to $0.85.

The above business outlook includes the estimated financial impact from the automatic Medicare reductions mandated under the Budget Control Act of 2011. Select Medical estimates this negative impact to net operating revenues and Adjusted EBITDA for the combined third and fourth quarters of 2013 to be between $16 million and $17 million. The above business outlook also includes the expected financial impact to outpatient therapy payments related to the MPPR Reduction. Select Medical estimates this

negative impact to net operating revenues and Adjusted EBITDA for the combined third and fourth quarters of 2013 to be between $3 million and $4 million for its outpatient rehabilitation segment. Select Medical assumed a 40.0% effective tax rate for the remainder of 2013 when preparing the above business outlook for the full year 2013.

Conference Call

Select Medical will host a conference call regarding its second quarter results and its business outlook on Friday, August 9, 2013, at 9:00am EDT. The domestic dial-in number for the call is 1-866-515-2908. The international dial-in number is 1-617-399-5122. The passcode for the call is 56400230. The conference call will be webcast simultaneously and can be accessed at Select Medical’s website, www.selectmedicalholdings.com.

For those unable to participate in the conference call, a replay will be available until 11:59pm EDT, August 16, 2013. The replay number is 1-888-286-8010 (domestic) or 1-617-801-6888 (international). The passcode for the replay will be 85932415. The replay can also be accessed at Select Medical’s website, www.selectmedicalholdings.com.

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Select Medical is a leading operator of specialty hospitals and outpatient rehabilitation clinics in the United States. As of June 30, 2013, Select Medical operated 109 long term acute care hospitals and 14 acute medical rehabilitation hospitals in 28 states and 988 outpatient rehabilitation clinics in 32 states and the District of Columbia. Select Medical also provides medical rehabilitation services on a contracted basis to nursing homes, hospitals, assisted living and senior care centers, schools and work sites. Information about Select Medical is available at www.selectmedical.com.

Certain statements contained herein that are not descriptions of historical facts are “forward-looking” statements (as such term is defined in the Private Securities Litigation Reform Act of 1995).  Because such statements include risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements due to factors including the following:

·                     changes in government reimbursement for our services due to the implementation of healthcare reform legislation, deficit reduction measures, and/or new payment policies (including, for example, the expiration of the moratorium on the 25-percent payment adjustment threshold that would reduce our Medicare payments for those patients admitted to a long term acute care hospital from a referring hospital in excess of the percentage threshold) may result in a reduction in net operating revenues, an increase in costs and a reduction in profitability;

·                     the impact of the Budget Control Act of 2011 which, as amended by the American Taxpayer Relief Act of 2012, has resulted in a 2% reduction to Medicare payments for services furnished on or after April 1, 2013 and will continue unless further legislation is enacted;

·                     the failure of our specialty hospitals to maintain their Medicare certifications may cause our net operating revenues and profitability to decline;

·                     the failure of our facilities operated as “hospitals within hospitals” to qualify as hospitals separate from their host hospitals may cause our net operating revenues and profitability to decline;

·                     a government investigation or assertion that we have violated applicable regulations may result in sanctions or reputational harm and increased costs;

·                     acquisitions or joint ventures may prove difficult or unsuccessful, use significant resources or expose us to unforeseen liabilities;

·                     private third-party payors for our services may undertake future cost containment initiatives that limit our future net operating revenues and profitability;

·                     the failure to maintain established relationships with the physicians in the areas we serve could reduce our net operating revenues and profitability;

·                     shortages in qualified nurses or therapists could increase our operating costs significantly;

·                     competition may limit our ability to grow and result in a decrease in our net operating revenues and profitability;

·                     the loss of key members of our management team could significantly disrupt our operations;

·                     the effect of claims asserted against us could subject us to substantial uninsured liabilities; and

·                     other factors discussed from time to time in our filings with the Securities and Exchange Commission (the “SEC”), including factors discussed under the heading “Risk Factors” for the year ended December 31, 2012 contained in our annual report on Form 10-K filed with the SEC on February 26, 2013 and our quarterly report on Form 10-Q for the three months ended March 31, 2013, filed with the SEC on May 2, 2013.

I.   Condensed Consolidated Statements of Operations

For the Three Months Ended June 30, 2012 and 2013

(In thousands, except per share amounts, unaudited)

N/M = Not Meaningful

II.   Condensed Consolidated Statements of Operations

For the Six Months Ended June 30, 2012 and 2013

(In thousands, except per share amounts, unaudited)

N/M = Not Meaningful

III.  Condensed Consolidated Balance Sheets

(In thousands, unaudited)

IV.  Consolidated Statement of Cash Flows

For the Three Months Ended June 30, 2012 and 2013

(In thousands, unaudited)

V.  Consolidated Statement of Cash Flows

For the Six Months Ended June 30, 2012 and 2013

(In thousands, unaudited)

VI.  Key Statistics

For the Three Months Ended June 30, 2012 and 2013

(unaudited)

(a)         Includes managed hospitals.

(b)         Excludes managed hospitals.

(c)          Net revenue per patient day is calculated by dividing specialty hospital direct patient service revenue by the total number of patient days.

(d)         Excludes managed clinics.

(e)          Net revenue per visit is calculated by dividing outpatient rehabilitation clinic direct patient service revenue by the total number of visits.  For purposes of this computation, outpatient rehabilitation clinic direct patient service revenue does not include managed clinics or contract services revenue.

VII.  Key Statistics

For the Six Months Ended June 30, 2012 and 2013

(unaudited)

(a)         Includes managed hospitals.

(b)         Excludes managed hospitals.

(c)          Net revenue per patient day is calculated by dividing specialty hospital direct patient service revenue by the total number of patient days.

(d)         Excludes managed clinics.

(e)          Net revenue per visit is calculated by dividing outpatient rehabilitation clinic direct patient service revenue by the total number of visits.  For purposes of this computation, outpatient rehabilitation clinic direct patient service revenue does not include managed clinics or contract services revenue.

VIII. Net Income to Adjusted EBITDA Reconciliation

For the Three and Six Months Ended June 30, 2012 and 2013

(In thousands, unaudited)

The following table reconciles net income to Adjusted EBITDA for Select Medical.  Adjusted EBITDA is used by Select Medical to report its segment performance.  Adjusted EBITDA is defined as net income before interest, income taxes, depreciation and amortization, gain (loss) on early retirement of debt, stock compensation expense, equity in earnings (losses) of unconsolidated subsidiaries and other income (expense).  The Company believes that the presentation of Adjusted EBITDA is important to investors because Adjusted EBITDA is commonly used as an analytical indicator of performance by investors within the healthcare industry.  Adjusted EBITDA is used by management to evaluate financial performance and determine resource allocation for each of its operating units.

Adjusted EBITDA is not a measure of financial performance under generally accepted accounting principles.  Items excluded from Adjusted EBITDA are significant components in understanding and assessing financial performance.  Adjusted EBITDA should not be considered in isolation or as an alternative to, or substitute for, net income, cash flows generated by operations, investing or financing activities, or other financial statement data presented in the consolidated financial statements as indicators of financial performance or liquidity.  Because Adjusted EBITDA is not a measurement determined in accordance with generally accepted accounting principles and is thus susceptible to varying calculations, Adjusted EBITDA as presented may not be comparable to other similarly titled measures of other companies.

(a)         Other primarily includes general and administrative costs.

IX.   Reconciliation of Income Per Common Share to Adjusted Income Per Common Share

For the Three Months Ended June 30, 2012 and 2013

(In thousands, except per share amounts, unaudited)