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They are headquartered in downtown Washington , D.C. History The Patient-Centered Primary Care Collaborative was created in late 2006 , when several large national employers came together with the four major U.S. primary care physician associations in order to : To achieve these goals , the PCPCC has created an open forum where healthcare stakeholders freely communicate and work together to improve the future of the American medical system .
 location: Washington , D.C.; organization: Primary Care Collaborative
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Washington , D.C., Primary Care Collaborative 
Answer:
 location: Washington , D.C.; organization: Primary Care Collaborative