Epocrates Appoints Erick Tseng to Board of Directors

San Mateo, Calif., August 30, 2011

Epocrates Appoints Erick Tseng to Board of Directors

SAN MATEO, Calif., August 30, 2011 - Epocrates, Inc. (NASDAQ: EPOC), a leading provider of mobile drug reference tools to healthcare professionals and interactive services to the healthcare industry, today announced the appointment of Facebook head of mobile products Erick Tseng to its board of directors effective immediately.

"Erick is a dynamic leader who will add a new dimension to our board," said Rose Crane, president and chief executive officer of Epocrates. "We are delighted to welcome him and look forward to tapping his proven track record of mobile innovation and expertise in user engagement."

Prior to Facebook, Tseng was lead product manager at Google where he was responsible for the development and launch of Android, Google's open-source mobile operating system. Before joining Google, Tseng was an associate at McKinsey & Company. He has also held various engineering and product management positions at Microsoft and Yahoo.

"Epocrates is right at the intersection of mobile and health – two of my personal passions," said Tseng. "As the nation moves toward digital, patient-centric health care, Epocrates is in an ideal position to help enrich the physician and patient experience with a greater degree of engagement and connectivity."

About Epocrates, Inc.

Epocrates, Inc. (NASDAQ: EPOC), developers of the #1 most used mobile medical app among U.S. physicians, creates point-of-care digital solutions that enhance the practice of medicine. More than 1.3 million healthcare professionals, including 50 percent of U.S. physicians, use Epocrates' solutions to help improve patient care and practice efficiencies with its drug reference, educational and clinical apps. The new Epocrates mobile and web-based EHR solution, designed for solo and small practice physicians, is affordable, easy-to-use and further supports physician workflow and patient outcomes. The company also partners with the healthcare industry, including top pharmaceutical companies, to engage with its clinician network through effective, interactive services. For more information about Epocrates, please visit www.epocrates.com/company.

Epocrates is a trademark of Epocrates, Inc., in the U.S. and other countries. All other trademarks and trade names referred to in this press release are the property of their respective owners.

CONTACT:

Erica Sniad Morgenstern
Director, Public Relations and Communication
(650) 227-6907
pr@epocrates.com

Media Contact

Holly Spring
athenahealth, Inc. (Media)
media@athenahealth.com
617-402-1631

Dana Quattrochi
athenahealth, Inc. (Investors)
investorrelations@athenahealth.com
617-402-1329

April Marks
Epocrates, Inc. (Media)
pr@epocrates.com
650-520-2413