Your Medicare ANOC Letter Just Arrived. Here's How to Read It in 10 Minutes
If you are on a Medicare Advantage plan or a standalone Medicare Part D prescription drug plan, there is a thick envelope sitting on your kitchen counter right now. It is probably from Humana, UnitedHealthcare, Aetna, Cigna, Wellcare, or BlueCross BlueShield of South Carolina. It arrived between September 1 and September 30. It is called the Annual Notice of Change, or ANOC, and it is the single most important piece of mail you will get this fall.
Here is the problem. Most Lowcountry seniors I talk to do one of two things with the ANOC. Either they shove it in a drawer unread, or they try to read it cover to cover, get overwhelmed at page 23, and give up. Both approaches leave you vulnerable. The ANOC contains the specific changes your plan is making for 2027, and if a change matters to you (dropped drugs, network shrinkage, premium increase, copay jumps), you have a limited window to do something about it.
I am going to walk you through exactly how to read your ANOC in 10 minutes. Not cover to cover. Just the pages that matter. I have done this with hundreds of Charleston County, Dorchester County, and Berkeley County Medicare clients, and the process is the same every year.
What the ANOC Actually Is
CMS (the Centers for Medicare & Medicaid Services) requires every Medicare Advantage plan, every Medicare Advantage Prescription Drug plan (MAPD), and every standalone Part D plan to send their members an Annual Notice of Change by September 30 each year. The ANOC spells out what is changing in your plan from the current year to the next.
It is not an advertisement. It is a legal disclosure. The insurance company has to tell you:
- Your new monthly premium for 2027
- Changes to the deductible
- Changes to copays and coinsurance
- Changes to the drug formulary (which drugs are covered and at what tier)
- Changes to the provider network (which doctors and hospitals are in or out)
- Changes to the pharmacy network
- Changes to extra benefits (dental, vision, hearing, transportation, OTC allowance, gym)
- Anything else material about the plan
The format varies slightly by carrier, but most ANOCs are structured the same way: a cover page, a “summary of changes” table at the front, and then detailed sections for each category. The summary of changes is the part you care about.
The 10-Minute Process
Pull your ANOC out of the envelope right now. I will walk you through it.
Step 1: Find the Summary of Changes Table (2 minutes)
Flip through the first 5-10 pages until you find a table titled something like “Annual Notice of Changes for 2027” or “Summary of Changes.” It will be a two-column comparison: what your plan was in 2026 on the left, what it will be in 2027 on the right.
This table is the entire point of the ANOC. Everything else is detail. If all you have is 10 minutes, this table is where you spend it.
Step 2: Check the Premium (1 minute)
Look at the row marked “Monthly Plan Premium” or “Part C Premium” (for Medicare Advantage) or “Part D Premium.” Compare the 2026 number to the 2027 number.
If the premium is going up by more than a few dollars, write down the difference. For 2027, many SC Medicare Advantage plans are holding premiums flat or increasing them by $5 to $20 per month. Some standalone Part D plans, on the other hand, are seeing much steeper increases due to the changes in how Medicare shares pharmaceutical costs. If your standalone Part D plan’s premium just jumped from $20 to $55, that is real money and worth investigating alternatives.
Step 3: Check the Deductible (1 minute)
Next row: “Annual Deductible” or “Deductible.” Compare 2026 to 2027. For most Medicare Advantage plans, the medical deductible is small or zero. For Part D drug coverage, there is a standard maximum deductible CMS sets each year. For 2027, the maximum Part D deductible is expected to be around $615 (up from $590). Your plan may charge less than the maximum.
If your plan’s deductible jumped, note it.
Step 4: Check Copays for the Services You Use (3 minutes)
Next set of rows: “Primary Care Physician Copay,” “Specialist Copay,” “Inpatient Hospital Copay,” “Emergency Room Copay,” “Urgent Care Copay,” and for MAPD plans, “Preferred Generic,” “Generic,” “Preferred Brand,” “Non-Preferred Brand,” and “Specialty Drug” tiers.
This is where plans get sneaky. A plan can hold the premium flat and then quietly raise the specialist copay from $40 to $55. Over a year, if you see a specialist every six weeks, that is $135 in extra out-of-pocket. A plan can shift a drug from Tier 2 to Tier 3, changing your monthly copay from $10 to $47. These are the kinds of changes that do not show up in marketing but matter enormously to your wallet.
Circle anything that changed. If you see your specialist regularly, a $15 copay increase matters. If you have an inpatient admission on the horizon, a $75 per-day hospital copay increase matters. If you have a specialty medication, a tier change is potentially catastrophic.
Step 5: Check the Formulary for Your Specific Drugs (3 minutes)
This is the part of the ANOC most people skip, and it is the part that kills the most Medicare Advantage members financially. Your plan will include a section called “Changes to the Drug List” or “Formulary Changes.” It will list drugs that are being dropped, drugs that are moving tiers, drugs that are adding restrictions (prior authorization, quantity limits, step therapy), and drugs that are being added.
Pull out your current list of prescriptions. Every single one. The blood pressure med, the cholesterol pill, the inhaler, the eye drops, the thyroid pill, the diabetes drug, the heart medication. Look for each one in the changes list.
Common scary changes:
- Dropped from formulary. Your drug is no longer covered at all. You either switch to an alternative, request a formulary exception, or pay cash.
- Tier increase. A drug moves from Tier 2 to Tier 3, or Tier 3 to Tier 4. Your monthly copay goes up meaningfully.
- Prior authorization added. The drug is still covered, but your doctor has to call the plan every month or quarter to get approval. Often this is just a paperwork hassle, but sometimes the plan denies and you fight it.
- Quantity limit added. The plan now only covers, say, 30 tablets per month instead of 60. You either change the dosing with your doctor or pay cash for the extra.
- Step therapy added. The plan requires you to try a cheaper drug first before they will cover the one you are on.
If any of your drugs appear in the changes list, circle it. We will come back to it.
Step 6: Check for Provider Network Changes (1 minute)
Your ANOC may include a notice about provider or hospital network changes. If a major Lowcountry hospital system - MUSC, Roper St. Francis, Trident Medical Center, Summerville Medical Center, East Cooper Medical Center - is leaving the plan’s network for 2027, that is a huge deal. It means you lose in-network access to that hospital and, often, to the doctors affiliated with it.
Network changes are not always itemized in the ANOC. Sometimes the plan just says “Please check the online directory for updates.” If you suspect a network change, call the plan directly or call me and I will check for you.
What to Do If You See a Problem
You found something. A drug was dropped. A copay jumped. The specialist you see every 8 weeks is no longer in network. Now what?
The first thing to know is that you have a window to do something about it. That window is called the Medicare Annual Enrollment Period (AEP), and it runs from October 15 through December 7, 2026. During AEP, you can switch from one Medicare Advantage plan to another, switch from Medicare Advantage back to Original Medicare, switch your standalone Part D plan, or add a Part D plan if you do not have one. Any changes you make during AEP take effect January 1, 2027.
If your ANOC flagged a problem, AEP is when you fix it.
Here is what I recommend:
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Do not switch impulsively based on the ANOC alone. The ANOC tells you what your current plan is doing. It does not tell you what every other plan in your zip code is doing. Before you switch, compare your current plan (with its new 2027 changes) to every alternative for 2027.
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Do not rely on the TV commercials. The Medicare Advantage commercials that start running September 1 are designed to get phone calls, not to give you accurate information. A celebrity spokesperson does not know your prescriptions, your doctors, your health history, or your zip code. Ignore them.
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Do use Medicare.gov’s Plan Finder. It is the closest thing to an unbiased tool. You enter your zip, your drugs, your preferred pharmacy, and it will show you every plan available with a personalized cost estimate.
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Or call me. I sit down with Medicare clients in Summerville, Goose Creek, North Charleston, and Mount Pleasant every year during AEP and walk through this exact process. I pull the Plan Finder, I check all your doctors against the networks, I verify your drugs against the formularies, and I show you the 2 or 3 plans that actually make sense. It takes about 30 to 45 minutes. It is free. It is what I do.
The Drug Drop Fix
If your specific medication was dropped from the formulary, you have options.
Option A: Formulary Exception. Your doctor can file an exception request with the plan arguing that the dropped drug is medically necessary for you and no alternative is appropriate. This is a real process with specific medical criteria. It takes effort. If the drug is expensive and there is a clinical reason you need that specific one (allergies, side effects, treatment history), the exception often gets approved.
Option B: Switch to the Alternative the Plan Prefers. The plan will tell you what they covered instead. Talk to your doctor. If the alternative is clinically acceptable, just switch. This is the most common path.
Option C: Change Plans During AEP. If another Medicare Advantage or Part D plan in your zip code still covers your specific drug at a reasonable tier, switching plans is a clean solution. This is only possible during AEP (Oct 15 - Dec 7), so if your ANOC is telling you your drug is dropped and it is already October, you have a narrow window.
Option D: Pay cash or use a discount program. Some drugs are cheap enough with GoodRx or a manufacturer patient assistance program that paying outside the plan is viable. For expensive drugs, this is usually not an option.
When to Switch Back to Original Medicare + a Medigap Plan
Sometimes the ANOC surfaces a bigger question: is Medicare Advantage still the right structure for me, or should I switch back to Original Medicare with a Medigap supplement?
This is a real decision and it is complicated by something called medical underwriting. In most states, including South Carolina, you can switch from Medicare Advantage to Original Medicare during AEP easily. But getting a Medigap (Medicare Supplement) plan to go with Original Medicare often requires medical underwriting after your initial enrollment period expires. If you have developed significant health conditions since you first enrolled in Medicare, a Medigap insurer can decline you or charge you more.
There is one exception: if you are in your first 12 months on Medicare Advantage (a “trial right”), you have a guaranteed right to switch back to Original Medicare and buy a Medigap plan without underwriting. That is a one-time window. If you missed it, the switch is harder but still sometimes possible.
This is a conversation to have with an agent who understands both Medicare Advantage and Medigap. I work with Mutual of Omaha, Humana, Aetna, and other Medigap carriers in addition to all the Medicare Advantage carriers, so I can lay out both paths and tell you which one fits your situation.
Call Me Before October 15
AEP starts October 15. From October 15 through December 7, I am booked solid with Medicare clients across the Lowcountry. The earlier in AEP you call, the more appointment time I have available.
If you got your ANOC, read through the summary of changes using the steps above, and you are not sure what to do, call me at (843) 594-1759. I will walk through your ANOC with you, compare your current plan against the alternatives, and tell you honestly whether you should stay, switch to a different Medicare Advantage plan, change your Part D plan, or consider a Medigap. I have appointments in Summerville and I do virtual reviews across SC.
Or request a Blinco Audit online and I will call you back the same day.
The ANOC is not junk mail. It is the most important 10 minutes of reading you will do this fall. Let’s use those 10 minutes wisely.
I don’t stop until you’re covered.
Frequently Asked Questions
A plain-English walkthrough of the Medicare Annual Notice of Change (ANOC) letter for 2027 Medicare Advantage and Part D plans. What to look for, what to ignore, and when to switch during AEP. This post is written by Michelle Blinco Smith, a licensed South Carolina insurance agent, as part of the Affordable Health & Dental blog for Lowcountry residents.
Anyone in South Carolina - and especially the Summerville, Charleston, and Berkeley county area - who wants a plain-English answer to an insurance question. Michelle writes every post based on real conversations with real Lowcountry clients, so the guidance is specific to how insurance actually works in SC.
Call Michelle directly at (843) 594-1759 or use the contact form. Consultations are free, there is no obligation, and you will talk to a licensed agent who can run real quotes from every carrier in your zip code and walk you through your options in plain English.