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Founded1 January 1998 Edit this on Wikidata
United States Edit this on Wikidata
Revenue$93.7 million (2009)
$83.3 million (2008)[1]

Epocrates is a mobile medical reference app, owned by athenahealth, that provides clinical reference information on drugs, diseases, diagnostics and patient management. 


Founded in 1998 by three Stanford Business School students,[2] early versions of Epocrates ran on Palm devices[3] and desktop computers. By 2006, the user base had reached an estimated 525,000 users worldwide, including 200,000 doctors in the United States.[4] Upon the introduction of the Apple iPhone, Epocrates became the first medical app on Apple's mobile platform.[5]

Early funding partners [AM1] included Bay City Capital, Draper Fisher Jurvetson, Interwest Partners, Sprout Group, and Three Arch Partners.[4]

In 2010, the company grew to more than 250 employees[2] and surpassed 1 million users worldwide, including 40% of the physicians in the United States.[6]

On January 7, 2013, it was announced that athenahealth would acquire Epocrates for about $293 million.[7]

In February 2022, Matt Titus was appointed as COO.[8]


The Epocrates app is designed for physicians and other healthcare professionals for use at the point of care. App users check drug dosing, drug interactions,[9] drug safety details, medical news, disease diagnosis and management guidance, as well as evidence-based clinical practice guidelines.[10]

athenahealth markets free and paid subscription versions of the app, which are available from Google Play or the App Store.[11]


  1. ^[bare URL]
  2. ^ a b "Media Room". Epocrates.[verification needed]
  3. ^ Milt Freudenheim (January 8, 2001). "Digital Doctoring; The Race Is On to Put a Computer Into Every Physician's Hand". New York Times.[verification needed]
  4. ^ a b Chris Rauber (August 18, 2006). "Epocrates putting drug info into docs' pockets". San Francisco Business Times.[verification needed]
  5. ^ Merrell, Ronald C.; Doarn, Charles R. (February 2014). "m-Health". Telemedicine and e-Health. 20 (2): 99–101. doi:10.1089/tmj.2014.9997. ISSN 1530-5627. PMC 3911767. PMID 24502195.
  6. ^ "Epocrates files to raise up to $75M in IPO". San Francisco Business Times. July 16, 2010.[verification needed]
  7. ^ Brian Dolan (January 7, 2013). "AthenaHealth buys Epocrates for $293M". MobiHealthNews.
  8. ^ "epocrates Bolsters Executive Leadership by Adding Matt Titus as Chief Commercial Officer". PharmExec. February 9, 2022.
  9. ^ Candice Novak (May 14, 2008). "Healthcare IT company is going public after partnering with Apple". US News.[verification needed]
  10. ^ WOOD, STUART F (1986). "Review of Hay Fever. 1. Historical Background and Mechanisms". Family Practice. 3 (1): 54–63. doi:10.1093/fampra/3.1.54. ISSN 0263-2136. PMID 3514346.
  11. ^ "Last Day to Get Epocrates Essentials for Free for Medical Students". Medgadget. August 31, 2010.[verification needed]