PolicyBrief
H.R. 4543
119th CongressJul 17th 2025
Medicaid Breast Cancer Access to Treatment Act
IN COMMITTEE

This bill expands Medicaid coverage for certain individuals with breast or cervical cancer and mandates coverage for breast reconstruction following a mastectomy.

Maxine Waters
D

Maxine Waters

Representative

CA-43

LEGISLATION

Medicaid Expansion Mandates Breast Reconstruction Coverage and Cuts Costs for Cancer Patients

The Medicaid Breast Cancer Access to Treatment Act is a straightforward piece of legislation that essentially expands Medicaid eligibility to include a specific, new group of individuals diagnosed with breast or cervical cancer. Beyond just opening the door, it locks in coverage for a crucial procedure and removes some financial hurdles for these patients. The changes are slated to kick in one year after the bill becomes law.

The New Eligibility Door

Right now, Medicaid eligibility can be complicated, but this bill carves out a specific new category of individuals who qualify for coverage simply because they have breast or cervical cancer. While the exact definition of this new group relies on specific updates to existing Social Security Act sections—making it tough to pinpoint every single person affected—the intent is clear: to ensure more low-income people battling these cancers can access treatment through Medicaid. This is a big deal for those currently stuck in the gap, earning just enough to be ineligible for other programs but not enough to cover massive medical bills.

Mandating Reconstruction and Zeroing Out Copays

If you’ve ever dealt with a major medical event, you know that the costs don’t stop after the main procedure. This Act specifically amends Section 1905(a) of the Social Security Act to mandate that Medicaid covers breast reconstruction surgery following a medically necessary mastectomy. This means state Medicaid programs won't be able to deny coverage for this critical part of recovery and quality of life for breast cancer survivors. Think about the peace of mind this provides: a patient undergoing a mastectomy won't have to worry about fighting their insurance provider for the subsequent reconstructive surgery.

Furthermore, the bill offers a significant financial break for these newly eligible cancer patients by exempting them from certain cost-sharing requirements—the dreaded copays and deductibles. For someone already facing a cancer diagnosis and treatment, removing those out-of-pocket expenses is huge. It means the focus can be entirely on recovery, not on whether they can afford the next doctor’s visit.

The Real-World Timeline and Implementation

All these changes—the expanded eligibility, the mandatory reconstruction coverage, and the cost-sharing exemptions—are set to take effect one year after the bill is signed. That one-year delay is essentially an implementation period, giving state Medicaid offices and administrators time to update their systems, adjust their budgets, and incorporate the new rules. While the expanded coverage is a clear win for patients, the administrative side of things will require some heavy lifting from state governments, who will need to manage the increased enrollment and service mandates. The bill does include technical adjustments to the Federal Medical Assistance Percentage (FMAP) calculations, which is the federal government’s share of Medicaid funding, helping states manage the financial impact of expanding their rolls.