Doximity is an online social networking service for U.S. clinicians. Launched in March 2011, Doximity has over 500,000 verified members as of August 2015. With over half of U.S. physicians as members and a growing population of nurse practitioners and physician assistants, Doximity is the largest HIPAA-secure medical network in the United States. Doximity offers its members curated medical news, HIPAA-secure case collaboration, and messaging to connect healthcare professionals across specialties and medical centers. In April 2014, the company announced it had raised a $54 million financing round led by the venture capital firm Draper Fisher Jurvetson and the mutual fund company T. Rowe Price. Morgan Stanley Investment Management also invested. This investment brought Doximitys total funding to $81 million. Doximity received $10.8 million in venture capital funding from Emergence Capital Partners and Interwest Partners in March 2011 and $17 million in Series B funding led by Morgenthaler Ventures in September 2012.