Before the Medicare Annual Enrollment Period begins, one of the most useful steps you can take is making sure the medical information you use to compare plans is current. Medicare’s plan comparison tools rely on details such as the name, dosage, quantity, and frequency of your prescriptions, while your doctor’s office also maintains the diagnoses and conditions connected to your treatment.
That makes a short doctor visit checklist especially useful before enrollment opens. An updated medication list and problem list can help you compare formularies, drug costs, prior authorization requirements, and other plan rules more accurately. Reviewing those records in advance also gives you time to correct outdated information before the Medicare Annual Enrollment Period runs from October 15 through December 7.
Your physician’s office cannot choose a Medicare plan for you, but it can help make sure the medical information behind that decision is accurate. Starting with those records can make the rest of the Medicare comparison process clearer and more useful.
The plan mail that has to arrive before you can compare anything
Your Annual Notice of Change opens the sequence. Under 42 CFR 423.2267(e), a drug plan must send it for enrollee receipt by September 30 each year, and 422.2267(e) sets the same date for Advantage plans. The Evidence of Coverage, the formulary, and the pharmacy and provider directories follow by October 15, in both rulebooks, so nothing here turns on which coverage you hold.
The September 2026 edition of Medicare & You marks October 1, 2026 as the day to start comparing current coverage against 2027 options. The annual enrollment period then runs October 15 to December 7, 2026, and new coverage begins January 1, 2027. Those dates sit in the regulation, not an annual announcement: 42 CFR 423.38 has fixed the annual coordinated election period at October 15 through December 7 since 2011.
That calendar is what leaves September for preparation ahead of Medicare’s open enrollment: the plan’s numbers arrive by September 30 and comparison starts October 1. medicare.gov adds one mechanic: the plan must get your enrollment request by December 7. Receipt, not postmark.
A plan may also point you to those materials online instead of mailing the booklets, and such notices go out no earlier than September 1, which is one reason you may think nothing came. If nothing arrives, medicare.gov says to contact your plan.
The four fields Medicare’s plan comparison tool asks you for
Medicare’s plan comparison tool puts its requirement in the imperative: to see drug costs, get ready to enter the name, dosage, quantity, and frequency for each drug you take regularly. It takes two further inputs, the pharmacies you use and the providers you see. Those fields make up the dosed medication list that turns a plan comparison into dollar figures.
A plan’s list of covered drugs is its formulary, and many plans sort those drugs into tiers, where lower tiers generally cost less. CMS states the caveat twice on the same page: each plan can divide its tiers in different ways, and your plan’s tiers may differ from any example you read.
A tier label by itself is not an amount: where a tier carries coinsurance, you pay a percentage of the drug’s price. KFF’s June 2026 analysis of CMS Part D data found coinsurance on preferred brands for 97% of standalone drug plan enrollees and on non-preferred drugs for 100% of them, against 56% and 89% of Advantage drug plan enrollees. Those are enrollment-weighted estimates from an analysis of CMS data, excluding employer group plans and Special Needs Plans, not a statement about your own plan’s charges.
Dose and quantity therefore decide the dollars, up to published limits: CMS’s April 2026 rate announcement sets the 2027 Part D deductible at no more than $700 and caps 2027 out-of-pocket drug costs at $2,400. Dose is also the field most likely to be stale on a list kept at home, which is why a Medicare AEP checklist starts with a doctor visit: a thyroid dose changed last visit moves the cost estimate the tool returns.
The diagnosis behind each prescription, and the coverage rules it decides
Plan Finder never asks for a diagnosis, but coverage rules turn on one. Medicare’s page on drug plan rules says a plan may use prior authorization when it covers a drug for certain medical conditions and not others, and that its formulary then carries other drugs for those conditions. A drug can sit on a plan’s list and still be unavailable for the reason you take it.
Step therapy, a type of prior authorization, asks you to first try a less expensive drug on the list, one proven effective for most people with your condition. Quantity limits cap how much a plan covers over a period, 30 tablets a month in CMS’s example. Under 42 CFR 423.120(b)(1)(x), a plan’s pharmacy and therapeutics committee approves the clinical criteria behind prior authorization, step therapy and quantity limits, and the plan sets tier placement too, so these utilization rules sit with the plan, not the practice.
A current problem list does a different job from the medication list. The dosed list drives the arithmetic, while the conditions list tells you which rules will bite and what a later exception request would have to say. If you are managing more than one chronic condition, the two lists rarely line up one to one.
The office can help you check a Medicare Part D formulary. CMS’s June 2026 booklet Your Guide to Medicare Drug Coverage says your doctor can check which drugs your plan covers and its coverage rules through their electronic prescribing system or the plan’s website. Drug classes likely to carry those rules, GLP-1 medications among them, are worth naming.
Requesting the two lists from your practice, and the visit they may already be due
What to ask your doctor before choosing a Medicare plan is narrower than it sounds. The office cannot weigh premiums for you, but it does hold both documents. Several routes reach them without a new clinical concern.
The records request, and what to ask for by name
A dosed medication list and a current problem list are records you are entitled to, not a favor. A patient portal message works, and so does a phone call, a printed list at the front desk, or an appointment already booked. Blue Point’s patient forms and patient information pages cover how a records request reaches the office.
Ask by name: drug name, strength, quantity and frequency for each prescription, plus the condition each one treats. Asking for a medication reconciliation at the same time is reasonable, since a prescription list deserves a second look either way.
The annual wellness visit, if yours is already due
If your annual wellness visit is already due, that is a natural time to ask. Under 42 CFR 410.15, the visit establishes or updates a list of current providers and suppliers regularly involved in your care, and a list of risk factors and conditions for which interventions are recommended or underway. Medications sit inside the medical and family history element, not under a heading of their own.
Medicare covers the yearly wellness visit once every 12 months, and a first one cannot fall within 12 months of your Part B enrollment, so a wellness visit this spring rules out that route. CMS also states that it is not a routine physical and that specific concerns belong in a separate appointment, hence the difference from a full physical. Extra tests in the same visit may bring coinsurance and the Part B deductible into play, as the wellness and sick visit cost gap shows.
A medication review your drug plan may already owe you
Your plan may already owe you a medication review. 42 CFR 423.153 requires every Part D sponsor to run a Medication Therapy Management program, and medicare.gov states that plans with drug coverage must offer those services at no cost to people who meet the requirements. Targeted enrollment runs on an opt-out method: a plan enrolls a targeted member who does not decline.
The targeting numbers are ceilings, not hurdles to clear. The regulation caps what a plan may require at three chronic diseases and eight Part D drugs, and a plan may set a lower bar. A targeted member gets an annual comprehensive medication review with a written summary, in CMS’s terms a review of your medications and why you take them, plus the documents medicare.gov calls a “Medication List” and a “Recommended To-Do List.” Why medication reviews matter during adult visits covers the clinical half, while your plan answers eligibility.
The protections that still apply after January 1
medicare.gov’s page on how drug plans work says plans can change their drug list at any time, and CMS’s September 2026 handbook agrees. The regulation is narrower for negative formulary changes: 42 CFR 423.120(e)(4) bars a Part D sponsor from making one that takes effect between the start of the annual coordinated election period and 60 days after the contract year begins, October 15, 2026 to roughly March 1, 2027. The consumer sentence holds for additions and for the two carve-outs below.
Two carve-outs can still take effect inside it. An immediate substitution lets a plan drop a brand-name drug within 30 days of adding a corresponding drug on the same or lower cost-sharing tier with the same or less restrictive rules, if that drug was not yet on the market and the plan gave advance general notice. A market withdrawal lets a plan remove a drug its manufacturer has pulled from sale, or one the FDA determines is withdrawn for safety or effectiveness reasons. Anything else that would worsen your drug’s position waits until about March, which is what makes an October comparison worth the effort.
A new plan comes with a transition supply to fall back on. Under 42 CFR 423.120(b)(3), a sponsor must ensure access to a temporary supply within the first 90 days of coverage under a new plan, and that fill is a one-time, temporary supply of at least an approved month’s supply. The 90 days is the window, not the quantity. Standalone drug plans and Advantage drug plans both owe it as Part D sponsors, and it does not cover the immediate changes above.
January’s remedy is the exceptions process. Under 42 CFR 423.578, a prescribing physician must provide an oral or written supporting statement that the plan’s preferred drugs would not be as effective for you, would have adverse effects for you, or both. 42 CFR 423.568(b) ties the clock to it: the plan has 72 hours from receipt, and with no statement by the end of 14 calendar days, the decision slides to 72 hours after that.
An exception is a remedy for an enrollee, so nobody can request one from a plan they have not joined. Before December 7 you can read the published formulary and ask whether your prescriber would furnish a statement if January calls for one.
One protection is scoped to Advantage plans alone, which is why anything already scheduled for early next year belongs in the September conversation. An Advantage plan must not disrupt or require reauthorization for an active course of treatment for at least 90 days after a new enrollee joins, as the Advantage and Original Medicare comparison explains. A standalone drug plan alongside Original Medicare has no counterpart.
A medical practice cannot tell you which plan to pick, and free help exists. Nevada’s Aging and Disability Services Division runs the Medicare Assistance Program, reachable statewide toll free at 800-307-4444, with Dignity Health St. Rose Dominican serving southern Nevada at 702-616-4926. Its counseling is free and unbiased: in CMS’s words, State Health Insurance Assistance Programs “aren’t connected to any insurance company or health plan.” 1-800-MEDICARE takes the same questions.
Frequently Asked Questions
Is there help available to pay for Medicare drug coverage?
Yes. Two programs may help with Medicare costs, although eligibility is determined outside a medical practice. Extra Help can help pay Part D premiums, deductibles and coinsurance for people with limited income and resources, and applications go through Social Security.
Your state also administers Medicare Savings Programs. Eligibility rules can vary, and Medicare advises people to apply even if they are unsure whether they qualify.
What happens if I already have drug coverage through an employer, union, TRICARE, or the VA?
Coverage is considered creditable when it is expected to pay, on average, at least as much as Medicare drug coverage. Your existing plan should tell you whether your coverage qualifies as creditable.
A gap of 63 days or more without Medicare drug coverage or other creditable coverage can expose you to a late enrollment penalty. Keep any creditable coverage notices you receive, since you may need them later to document that you had qualifying coverage.
What Medicare costs reset on January 1?
The Part D deductible and your plan’s yearly out-of-pocket limit generally reset on January 1, so spending under those limits starts over for the new plan year.
Part A works differently because its inpatient deductible is based on a benefit period, not the calendar year. A new benefit period can begin at any point during the year.
Conclusion
Comparing Medicare coverage is easier when the information about your current care is accurate before enrollment begins. A current medication list with the correct dosage, quantity, and frequency, along with an updated problem list, gives you the information needed to compare drug formularies, costs, and coverage rules more accurately.
Preparing those records in September can also give you time to correct outdated information, discuss medications with your physician, and identify any treatment that may require special attention before changing coverage. Your doctor’s office cannot choose a Medicare plan for you, but it can help make sure the medical information you use to compare plans reflects the care you actually receive.
Blue Point Medical Group is an independent primary care and internal medicine practice in Las Vegas. Before Medicare’s enrollment window opens, contact Blue Point Medical Group to request a current medication list, review your health information, or discuss whether a change in coverage could affect an ongoing treatment plan.
This article is for informational purposes only and does not constitute medical advice. Always consult your physician or a qualified healthcare provider for questions about your health or before making changes to your treatment plan.
