The Firm: This highly regarded team focuses on providing regulatory and transactional representation to its traditional provider client base while also offering counsel to investors and companies looking to innovate within the healthcare space. It recently achieved the dismissal of a $1.4 billion qui tam action brought against longstanding client Beth Israel Medical Center.

Sources Say: "Whoever we work with there, it is always a uniformly positive experience – they have been a godsend to us."

Key Individuals: Edward Kornreich "sees the big picture straight away" and is praised by clients for his ability to "help you understand the issue and then come up with creative solutions within the law." Peers highlight his expertise in diverse areas such as M&A and healthcare reimbursement, and his recent work highlights include representing a client in a $400 million sale of its assets.

Richard Zall is venerated by clients for being "extremely professional and very knowledgeable," and for his "very strong judgment." His practice covers both transactional and regulatory matters, and peers confirm that he is deserving of his high reputation in the field. He has of late advised AthenaHealth on regulatory matters related to its new product, AthenaCommunity.