The Obama administration is willing to work to address congressional concerns with a proposal aimed at fighting high drug prices, a top health official said Wednesday.

The administration’s proposal to change how Medicare pays for certain drugs has drawn objections from both sides of the aisle. Republicans want it to be completely scrapped, while Democrats have expressed serious reservations and called for changes.

“We will interact with Congress, take feedback and make adjustments as needed,” Dr. Patrick Conway, the No. 2 official at the Centers for Medicare and Medicaid Services (CMS), said at an Alliance for Health reform event.

He specifically mentioned openness to changes on two fronts that have been raised by lawmakers in both parties: making the proposal apply only to a smaller geographic area and making sure the proposal does not have a harmful effect on rural or smaller providers.