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Previously , Crowley was a senior scholar and researcher at the Health Policy Institute at Georgetown University where he focused on Medicare and Medicaid policy from 2000 to 2009 .
 Crowley, Policy, Georgetown University
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Crowley, Policy, Georgetown University