Medical Billing
Hospital Billing - http://www.physiciansbillinggroup.com/
Physicians Billing Group is a full service medical practice consultancy specializing in primary source verification, medical credentialing, and hospital billing. Let our team of highly experienced medical billing representatives save your organization time and money.
Nephrology Billing Service - http://www.hiiweb.com/
Health Informatics Intl is a national leader in systems and services for CKD, ESRD & CDM.