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America Medical Billing Center List
Provides a directory of resumes and listings of medical billing companies.
http://www.billingcenterlist.com/
Medical Association of Billers
Membership pages of billers for association.
http://www.physicianswebsites.com/medical-billing-services.htm
American Medical Billing Association
Information exchange and networking for professional medical billers and electronic claims processing consultants.
http://www.webcom.com/medical/AMBA.htm