Manatt, Phelps & Phillips, LLP

Manatt, Phelps & Phillips, LLP advises health insurers and related service providers through its Manatt Health practice, which combines legal services with regulatory, policy, reimbursement, and data analytics advisory functions. The team has a particular focus on Medicaid and Medicare managed care and advises clients on federal and state regulatory compliance. William Bernstein oversees the team from the New York office and is ably supported by Robert Belfort, whose practice spans regulatory compliance and transactional matters, notably transactions that raise complex regulatory issues, and Randi Seigel, who possesses deep regulatory knowledge, particularly in HIPAA and state privacy laws, state licensure and scope of practice law, telehealth, AI, and Medicare and Medicaid conditions. In the Los Angeles office, Greg Pimstone is a reputed appellate litigator known for his work in class actions and government investigations. Also based in Los Angeles, Paul Carr-Rollitt focuses his practice on transactional mandates, as well as corporate governance and licensure matters. Ileana Hernandez left the firm in February 2025.