What surgeons should know about ... the Unique Physician Identification Number.
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D014487:Centers for Medicare and Medicaid Services, U.S. / Q000458:organization & administration; D016208:Databases, Factual; D004181:Directories as Topic; D005568:Forms and Records Control; D006801:Humans; D006278:Medicare / Q000458:organization & administration*; D010820:Physicians / Q000145:classification*; D010818:Practice Patterns, Physicians'; D012017:Referral and Consultation; D014481:United States