CHSI Catalyst Health Solutions, (MM)

Catalyst Health Solutions, Inc. (NASDAQ: CHSI) � announced today that David T. Blair, the Company�s Chief Executive Officer and Hai Tran, the Company�s Chief Financial Officer are scheduled to present at the 27th Annual J.P. Morgan Healthcare Conference in San Francisco, California, on Monday, January 12, 2009. Catalyst Health Solutions� presentation is scheduled to begin at 10:30 a.m. PST (1:30 p.m. EST) on Monday, January 12, 2009. The public may access a live web cast of the presentation on the Corporate Home Page of Catalyst Health Solutions� website at www.chsi.com. A replay of the presentation will be available at the same website following the presentation until January 30, 2009. About Catalyst Health Solutions, Inc. (www.chsi.com) Catalyst Health Solutions, Inc. (formerly HealthExtras, Inc.) is built on strong, innovative principles in the management of prescription drug benefits and provides an unbiased, client-centered philosophy resulting in industry-leading client retention rates. The Company's subsidiaries include Catalyst Rx, a full-service pharmacy benefit manager serving more than five million lives in the United States and Puerto Rico; HospiScript Services, LLC, one of the largest providers of pharmacy benefit management services to the hospice industry; and Immediate Pharmaceutical Services, Inc., a fully-integrated prescription mail service facility based out of Avon Lake, Ohio. The Company's clients include self-insured employers including state and local governments, managed care organizations, unions, hospices, third-party administrators and individuals. This press release may contain forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934. These forward-looking statements involve a number of risks and uncertainties. Factors that we have identified that might materially affect our results are discussed in our Annual Report on Form 10-K for the year ended December 31, 2007 under "Item 1.A Risk Factors." Readers are urged to carefully review and consider the various disclosures made in our Annual Report on Form 10-K and our other filings with the Securities and Exchange Commission that attempt to advise interested parties of the risks and uncertainties that may affect our business.