On October 9, 2019, the US Department of Health and Human Services Centers for Medicare and Medicaid Services (CMS) published proposed changes to the physician self-referral law (Stark Law). Physician practices are subject to the Stark Law, and the proposed rule includes an important clarification affecting certain group practices’ compensation models.

CMS proposes to revise its regulations to clarify the special rule for group practice distributions of income from Stark designated health services (DHS). Compliance with this special rule is a requirement of the Stark Law’s definition of a “group practice,” and compliance with the “group practice” definition is generally necessary for physician groups to have the protection of the in-office ancillary services (IOAS) exception to the Stark Law. The special rule for sharing DHS profits permits a group, or a pod of five or more physicians in the group, to pool their DHS income and distribute the pool in a manner that does not directly take into account the volume or value of any physician’s referrals for DHS.

For years, there has been a debate within the health law bar regarding how these DHS income pools can be structured under the special rule. One position is that the special rule permits pools to be organized by DHS, meaning, for example, that if the group’s only DHS are imaging and physical therapy services (PT), the group can have one pool for diagnostic imaging income in which one set of five or more physicians participate, and another pool for PT income in which another (perhaps overlapping) set of five or more physicians participate (split-DHS income pooling). The other position is that the special rule requires that the DHS income pool must include all the DHS generated by the participating physicians. In such a case, the imaging and PT pools described above would have to be consolidated (all-DHS income pooling).