The Devastating Reality of Original Medicare’s Out-of-Pocket Maximum

When it comes to Original Medicare, one critical aspect often goes overlooked: the lack of an annual out-of-pocket maximum. This means that beneficiaries are liable for 20% of unlimited Part B costs after a $283 deductible. For a cancer patient, this can lead to astronomical bills, with $150,000 in Part B services resulting in a $30,000 coinsurance burden.

Chemotherapy, imaging, radiation, and specialist visits can all contribute to this exposure. The problem is that Original Medicare provides no ceiling to prevent this from happening. Part A brings separate costs, including a $1,736 inpatient deductible and $434 per day for days 61 through 90. A covered skilled nursing stay costs $217 per day for days 21 through 100, with Medicare coverage ending after day 100.

Medigap Plan G: A Lifeline for Cancer Patients

Medigap Plan G can eliminate the coinsurance exposure associated with Original Medicare. However, the catch is timing. The federal six-month Medigap Open Enrollment Period begins the first month someone is 65 or older and enrolled in Part B. Missing this window can make coverage permanently unattainable.

During this six-month period, an insurer cannot reject an applicant or charge more because of health. Afterward, carriers in most states may use medical underwriting unless another guaranteed-issue right applies. Some states offer wider protections, while birthday and anniversary rules elsewhere generally help people who already have Medigap.

Medicare Advantage Changes the Game

Medicare Advantage plans have annual out-of-pocket limits for covered Part A and Part B services. However, this protection comes with network and authorization rules. An HMO may provide no coverage for routine out-of-network treatment, while a PPO may cover it with higher cost-sharing and a larger combined limit. Part D drug spending follows a separate benefit structure.

Before choosing a plan, confirm the oncologist, hospital, infusion center, and imaging facility. A hospital appearing in the directory does not guarantee that every specialist involved in treatment is covered on the same terms. Returning to Original Medicare during an eligible enrollment period is straightforward. Obtaining Medigap afterward may not be.

What to Do Next

Three moves carry most of the weight:

• Use the federal Medigap window. Compare Plan G with high-deductible Plan G while coverage is guaranteed regardless of health.
• Check state protections. After the federal window closes, contact the state insurance department or SHIP before assuming Medigap is unavailable.
• Secure Medigap acceptance before leaving Medicare Advantage. Obtain written approval and coordinate the effective dates for Original Medicare, Medigap, and standalone Part D coverage before dropping the existing plan.