AMERICAN SHARED HOSPITAL SERVICES (NYSE MKT:AMS), a leading provider of turnkey technology solutions for advanced radiosurgical and radiation therapy services, announced today that the Centers for Medicare and Medicaid Services (CMS) has posted the proposed rule for Medicare's hospital outpatient prospective payment system for calendar year 2014. Within this proposed rule, CMS proposes updates for the delivery codes used for stereotactic radiosurgery (SRS), including Gamma Knife services. CMS proposes to reimburse hospitals for a complete course of treatment comprised of a single session of SRS at $8,576 in 2014. This payment level would apply to single session treatment for all forms of SRS – Cobalt-60 SRS (Gamma Knife), robotic linear accelerator (LINAC) SRS or non-robotic LINAC SRS. By comparison, effective April 1, 2013, the Gamma Knife was reimbursed by CMS at $3,300 and during the period January 1, 2013 to March 31, 2013 at $7,910. This CMS proposed reimbursement rate is subject to comments from interested parties, and could change. Final CMS reimbursement rates are anticipated to be issued in fall 2013. About AMS American Shared Hospital Services provides turnkey technology solutions for advanced radiosurgical and radiation therapy services. AMS is the world leader in providing Gamma Knife radiosurgery equipment, a non-invasive treatment for malignant and benign brain tumors, vascular malformations and trigeminal neuralgia (facial pain). The Company also offers the latest IGRT and IMRT systems, as well as its proprietary Operating Room for the 21st Century SM concept. AMS owns common stock in Mevion Medical Systems, Inc., developer of the compact MEVION S250™ Proton Therapy System. Safe Harbor Statement This press release may be deemed to contain certain forward-looking statements with respect to the financial condition, results of operations and future plans of American Shared Hospital Services, which involve risks and uncertainties including, but not limited to, the risks of the Gamma Knife and radiation therapy businesses, the risks of developing The Operating Room for the 21st Century program, and the risks of investing in a development-stage company, Mevion Medical Systems, Inc., without a proven product. Further information on potential factors that could affect the financial condition, results of operations and future plans of American Shared Hospital Services is included in the filings of the Company with the Securities and Exchange Commission, including the Company's Annual Report on Form 10-K for the year ended December 31, 2012, the Quarterly Report on Form 10-Q for the quarter ended on March 31, 2012, and the definitive Proxy Statement for the Annual Meeting of Shareholders held on June 7, 2012.