Why September is the real work
People treat October 15 as the starting gun and then spend the window gathering paperwork instead of comparing plans. The comparison is the part that needs your judgement; the gathering is clerical and can be done now.
Do these six things in September and the enrollment itself is a short, calm session rather than a scramble.
1. Build your drug list properly
Not "my blood pressure pill" — the generic name, the dosage, and how often you take it. Plan comparison tools price each drug individually against the plan's formulary and tier structure, and a wrong dosage returns a wrong annual cost.
The easiest source is the label on the bottle. Write all of them on one sheet of paper and keep it with the rest of this.
2. Name your pharmacy
The same plan prices the same drug differently depending on whether the pharmacy is preferred, standard or out of network. Switching pharmacies is often worth more than switching plans, and you cannot see that unless you tell the tool which pharmacy you use.
If mail order is an option for a maintenance drug, price that too — it is frequently the cheapest tier available.
3. Write down the doctors you will not give up
By name, and by hospital where it matters. Network directories change between plan years and "my doctor is probably in it" is how people end up out of network in February.
Once you have a shortlist of plans in October, call the doctor's office directly and ask whether they will be in that plan's network next year. The plan's own directory is often out of date; the office knows.
4. Find your Annual Notice of Change
Your current plan mails it by September 30. It lists exactly what is changing about your coverage on January 1 — premium, drug tiers, network, out-of-pocket maximum. Our guide to reading the ANOC covers what to look for.
Put it with the drug list and the doctor list. Those three pages are your entire enrollment file.
5. Set up your medicare.gov account now
Creating the account and recovering a forgotten password are both slower in late October when several million other people are doing the same thing. Log in once in September and confirm it works.
While you are there, check that your current coverage shows correctly. It is also where you will confirm any change actually processed once you make one.
6. Decide how you want to enroll
You have three legitimate routes and they cost the same. Medicare's Plan Finder at medicare.gov/plan-compare lists every plan in your ZIP code, including ones no agent sells. 1-800-MEDICARE is staffed around the clock. Your State Health Insurance Assistance Program gives free counseling and sells nothing.
Or work with an agent, which costs you nothing extra but covers a narrower set of plans. Decide now rather than in the middle of the window — our do I need an agent page lays out the honest trade-offs, and the 2027 calendar has every date.
Frequently Asked Questions
When should I start preparing for Medicare Open Enrollment?
September. The window opens October 15, and arriving with your drug list, doctor list and Annual Notice of Change already in hand turns enrollment into a twenty-minute task.
Why does my pharmacy matter when comparing plans?
Plans price the same drug differently by pharmacy tier — preferred, standard or out of network. Changing pharmacy sometimes saves more than changing plan, and comparison tools only show it if you enter the pharmacy you actually use.
How do I check whether my doctor will be in a plan's network next year?
Call the doctor's office and ask about that specific plan for the coming year. Published network directories lag reality, and the office usually knows before the directory is updated.
Do I need a medicare.gov account to enroll?
You can enroll without one, but the account is where you confirm your current coverage and verify that a change actually processed. Set it up in September rather than during the October rush.
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