Mainstream Services Medical Billing is a privately owned and operated healthcare billing and consulting company committed to providing exceptional services to our client base and those they service. Mainstream Services Medical Billing has a team of professional, dedicated and experienced associates boasting more than 20 years of industry and corporate leadership experience. Our staff are professionally educated and trained. We are active members of: Professional Medical Billers Association (PMBA) South Holland Business Association (SHBA) Calumet City Chamber of Commerce (CCC) US Federal Government (CCR) registered contractors Our goal is to ensure our healthcare providers and their staff can focus on the quality medical care they provide to their patients with the peace of mind that Mainstream Services Medical Billing are focusing on their medical claim processing needs.