Over the past 3 years, as chronicled in several Proskauer alerts, an increasing number of states have sought to regulate physician practice management (“PPM”) and private equity transactions in the health care sector, including California, New York, Washington, and Illinois.

The regulation of health care transactions remains an evolving

On May 21, 2025, the Centers for Medicare and Medicaid Services (“CMS”) announced a significant expansion of its auditing efforts with respect to Medicare Advantage (“MA”) plans.

For newly initiated audits of MA plans, CMS will audit all eligible MA contracts for each payment year. Additionally, for audits already initiated

On May 15, 2025, the New York State Department of Health (“DOH”) announced the launch of the electronic Material Transaction Reporting Form for health care transactions (“Electronic Form”). To assist reporting entities in preparing their submissions, the DOH has also released a list of all questions included in the Electronic

Nearly two years ago, and as previously discussed in a Proskauer alert, New York enacted Public Health Law Article 45-A (the “Material Transactions Law”), which requires reporting of certain material health care transactions. Last month, the New York State (“NYS”) Department of Health (“DOH”) published long-awaited guidance concerning the

On January 8, 2025, Massachusetts Governor Maura Healey signed into law House Bill 5159 (the “Bill”). The Bill grants the state new regulatory powers to oversee and review health care transactions involving private equity firms, real estate investment trusts (“REITs”), and management services organizations (“MSOs

This article was initially published as a Bulletin for the AHLA’s Physician Organizations Practice Group.

California Assembly Bill 3129[1] (“AB3129”), which targeted for regulatory review a variety of health care transactions involving “private equity groups” and “hedge funds,” was vetoed by Governor Gavin Newsom on September 28, 2024.[2]

On August 31, 2024, the California State Assembly and State Senate passed Assembly Bill 3129 (“AB 3129”). If signed by Governor Newsom, AB 3129 would establish a comprehensive transaction review law that (i) targets private equity firms and hedge funds, and (ii) grants the Attorney General explicit consent rights over

Update as of 3/13/24:

House Bill 4130 died on March 4, 2024, after it failed to reach the Senate Floor. Representative Ben Bowman, the Bill’s chief sponsor, pledged to reintroduce the Bill as soon as the opportunity arises. The Bill garnered national attention as the latest state-led effort to regulate

Following New York State Governor Kathy Hochul’s proposal in February of this year (see our previous alert), the New York legislature passed and Governor Hochul signed a law on May 3, 2023, which significantly increases the state’s focus and visibility into physician practice management change‑of‑control transactions.[1] New York’s statute reflects a growing trend of states taking note of transactions that previously were not regulated by state administrative agencies. As we await the promulgation of regulations from the New York State Department of Health (“DOH”), we examine here how New York’s law compares to similar laws in other states, and describe precautions that operators in the physician management space — as well as those who do businesses with such operators — should take to safeguard themselves against major disruptions to operations.

On July 27, 2023, California’s Office of Health Care Access and Information (the “Office”) released its long-awaited proposed regulations on the notice requirements for material health care transactions in California. The anticipated regulations follow the passing of SB 184 on June 30, 2022, which, in part, created the Office and granted it the authority to collect and analyze data related to health care costs, specifically via monitoring mergers and acquisitions in the health care industry. Following the lead of states like New York, whose wide-range health care transaction requirements were discussed in a previous blog post, California seeks to address the increasing costs of health care services by imposing significant notice and review requirements for mergers and acquisitions beginning in 2024.