ATHENAHEALTH, INC. ANNOUNCES FIRST QUARTER 2009 EARNINGS CONFERENCE CALL

WATERTOWN, Mass. (April 13, 2009) – athenahealth, Inc. (NASDAQ: ATHN), a leading provider of internet-based business services for physician practices, today announced that the Company will hold a conference call for investors on Friday, May 1st, 2009 at 8:00 a.m. ET. Management will discuss the Company’s first quarter 2009 results, which will be released after the close of market trading on Thursday, April 30th, 2009. Please note that this event is beginning at an earlier time than the Company’s previous earnings conference calls.

To participate in athenahealth’s live conference call and webcast, dial 877-741-4249 ( 719-325-4796 for international calls) or visit the investors section of the Company’s web site: www.athenahealth.com. A replay of the conference call will be available via the website or by calling 888-203-1112 ( 719-457-0820 for international calls) and using passcode No. 4334090.

Source: ATHENAHEALTH