Private investment firm Aquiline Capital Partners has invested in National Medical Billing Services, a healthcare revenue cycle management company servicing ambulatory surgery centers.

“The team at National Medical has built an impressive business that serves as a trusted advisor helping their clients navigate the increasing complexity of the healthcare system,” said Jeff Greenberg, chairman and CEO of Aquiline. “We are excited to partner with National Medical, where we can employ our experience at the intersection of healthcare and insurance to help the company continue innovating to further enhance and expand its business and operations.”

Cain Bros., a division of KeyBanc Capital Markets, served as the exclusive financial advisor to National Medical for this transaction, and Neal, Gerber & Eisenberg served as legal counsel to the target. Ropes & Gray LLP served as legal counsel to Aquiline.