retirement brought new opportunities for Sue to enjoy life with her family. However, a routine swim led to an unexpected discovery—a suspicious dark spot on her shoulder. This incident highlighted a critical aspect of managing healthcare under a Medicare Advantage Health Maintenance Organization (HMO) Plan.
Sue’s husband encouraged her to have the spot checked, leading her to schedule an appointment with her primary care provider (PCP). After examining the spot, her doctor referred her to a dermatology specialist assuming the referral would be covered in-network by her Medicare Advantage HMO plan, except for her usual copayment.
Sue’s Unexpected Bill
Sue visited the dermatologist, who removed the spot and confirmed it wasn’t cancer. Relieved, she drove home, only to receive an Explanation of Benefits (EOB) from her insurance company a few weeks later. To her surprise, the visit wasn’t covered because the dermatologist was out-of-network with her Medicare Advantage HMO plan.
The Common Misconception
Sue’s story is not uncommon. Many Medicare Advantage HMO members assume that if their doctor refers them to a specialist, the provider must be covered by their insurance. However, provider participation can change throughout the year, and your doctor’s office may not have access to the most up-to-date network information for your specific plan.
Specialists’ offices often verify insurance before appointments, but mistakes happen. Sometimes, patients don’t learn there’s a problem until they view their EOB or a bill arrives. This is why it’s crucial to take one simple step before scheduling any appointment.
The Proactive Step
Before scheduling an appointment with any specialist, imaging center, or laboratory, call your Medicare Advantage plan and confirm the provider is in-network with your specific plan. Even if your doctor’s office says the provider participates with your insurance, verify it yourself.
If a specialist’s visit, a test, or a procedure is scheduled for a couple of months from now or more, make a follow-up call to your insurance company a few days before your visit. Write down the date, time, and name of the insurance representative you spoke with, along with what they confirmed.
Handling Unexpected Bills
If you receive an unexpected bill, do not assume there’s nothing you can do. Contact your Medicare Advantage plan as soon as possible to find out why the claim was denied and to obtain your appeal rights, along with the process your insurance company requires you to follow for an effective appeal.
In your appeal letter, explain that you were referred by your PCP and were never informed that the provider was out-of-network. Include that the specialist’s office itself never contacted you before your appointment to inform you that they were out-of-network with your plan. Emphasize that if you had known the entity you were referred to was out-of-network in the first place, you would have obviously never chosen to see them.
While an appeal doesn’t guarantee payment, it’s often worth pursuing. The best way to avoid an unpleasant surprise is to verify your specialist, a lab, or a facility before your appointment. One quick phone call can save you hundreds of dollars, prevent unnecessary stress, save you from having to appeal, and give you confidence that you are receiving care that is covered.
When it comes to your Medicare Advantage HMO plan, a few minutes of preparation today can protect both your health and your finances tomorrow.



