Every year, right around the same stretch, health plans reshuffle. Open enrollment closes, new plan years begin, Medicare Advantage members shift networks, and Medicaid managed care contracts renew. None of this is new information to anyone running a home health or hospice agency, but it's worth pausing on every year anyway, because the referral disruption that follows is predictable and largely avoidable if an agency plans for it deliberately.

Here's what actually happens during this stretch, and how to stay ahead of it.

Why this period disrupts referrals more than agencies expect

A patient switching Medicare Advantage plans during open enrollment doesn't just get a new insurance card. They may end up in a different plan's network entirely, one that doesn't include your agency, even if you'd been providing their care for months. That transition can quietly cut off a referral relationship that took years to build, not because the care wasn't good, but because the plan changed and nobody on either side flagged the network gap in time.

Referral sources feel this too. Hospitals, physician groups, and case managers are dealing with their own plan-year transitions and network updates, and a referral that would have gone to your agency without a second thought in October can get redirected in January simply because someone's referral list hasn't been updated to reflect which plans you're actually in-network with going into the new plan year.

Where the real risk sits

The biggest risk isn't the plan changes themselves, it's not knowing about them until a referral gets redirected or a claim gets denied for a network issue nobody caught in advance. Agencies that wait to discover network changes through denied claims are always working from behind, cleaning up a problem instead of preventing it.

There's also a quieter risk in how this affects payer mix. A shift in which plans are sending referrals your way can change your overall payer mix meaningfully within a single quarter, which has real downstream effects on everything from cash flow to the kind of case mix and reimbursement planning that depends on a reasonably stable referral pattern.

Medicaid redeterminations add another layer worth watching

On top of Medicare Advantage network shuffles, Medicaid eligibility redeterminations happen on their own separate cycle in most states, and patients can lose or change coverage without an agency finding out until a claim gets denied. A patient who was Medicaid-eligible for months can lose that eligibility over a routine redetermination, and if nobody on the referral or intake side catches it early, an agency can end up providing care under an assumption about coverage that's no longer accurate.

This matters most for patients already receiving care, not just new referrals. A patient mid-episode whose coverage status changes needs someone to catch that quickly, both to protect the patient from an unexpected bill and to protect the agency from providing care it won't get reimbursed for. Building a habit of checking eligibility status at natural checkpoints, not just at admission, catches this before it becomes a bigger problem.

What agencies should actually do heading into this stretch

Start by confirming your network status with every major payer in your market before the new plan year begins, not after. A quick outreach to your credentialing or payer relations contacts to confirm nothing's changed is far cheaper than discovering a network gap through a stack of denied claims weeks into the new year.

Reach out to your key referral sources directly and make sure their referral lists and network information reflect your current status accurately. Referral coordinators are juggling a lot of plan changes at once, and a proactive check-in from you is often the thing that keeps your agency top of mind instead of quietly falling off a list.

And build a habit of reviewing your payer mix at the start of each new plan year specifically, rather than only noticing a shift once it's already affected several months of cash flow. Catching a meaningful change early gives you time to actually respond to it, whether that means shoring up relationships with other referral sources or adjusting expectations for the months ahead.

None of this requires an elaborate new process. A short, recurring calendar reminder to check network status and touch base with key referral contacts at the start of each plan year is often enough to catch the changes that matter, as long as it actually happens every year instead of only when someone remembers.

Get ahead of the transition

If you want to talk through how payer mix shifts might affect your coding and reimbursement planning heading into a new plan year, we're happy to walk through it with you.