Radiation Therapy Services Holdings, Inc. (RTSX) SEC Filing 10-K Annual report for the fiscal year ending Saturday, December 31, 2011

Exhibit 99.1

RADIATION THERAPY SERVICES HOLDINGS, INC.

RADIATION THERAPY SERVICES REPORTS PRELIMINARY FOURTH QUARTER AND YEAR ENDED 2011 FINANCIAL RESULTS

Fourth Quarter 2011 Highlights:

·                  Total company pro forma revenues grew by 23. 3% to $171.2 million

·                  Domestic same practice treatments per day increased 3.0%

·                  International treatments increased 13.6%

·                  Pro Forma Adjusted EBITDA of $28.8 million

Full Year 2011 Business Highlights

·                  Completed strategic acquisitions in Argentina, Redding, CA and Goldsboro, NC, further building market presence

·                  Obtained CONs in attractive markets of Conway, SC and Asheville, NC

·                  Increased revolver by $50 million and amended Senior Credit Facility to support continued growth

·                  Appointed Bryan J. Carey as permanent Chief Financial Officer

·                  Implemented strategies to partially offset reductions in 2012 reimbursement

·                  Pro Forma Adjusted EBITDA of $122.8 million

FORT MYERS, FL, March 7, 2012 —

Dr. Daniel Dosoretz, President and Chief Executive Officer, said, “During the fourth quarter, we saw a continued trend of improving volumes, with domestic same practice treatments per day up 3.0%.  This increase reflects a continued rebound in services in some of our key markets, such as Florida and Michigan, as well as the impact of our marketing initiatives.  The 13.1% increase in same practice RVUs per day also reflects our continuing mix shift towards more clinically appropriate and sophisticated radiation oncology services.”