The gatekeeper in managed care.
CIGNA HealthCare of California, Glendale.
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Kranther
D003363:Cost Control; D006297:Health Services Accessibility / Q000458:organization & administration; D008329:Managed Care Programs / Q000458:organization & administration*; D009722:Nurse Practitioners / Q000592:standards; D010823:Physician Assistants / Q000592:standards; D010821:Physicians, Family / Q000592:standards*; D012017:Referral and Consultation / Q000458:organization & administration*; D012308:Risk Management / Q000379:methods*; D014481:United States