Medicare guidance
I Enrolled in Medicare—What Happens Next?
Use this after-enrollment checklist to confirm start dates, organize cards, arrange premium payments and prepare for your first appointments and prescriptions.
Your coverage timeline
Confirm Acceptance and Effective Dates
Keep a copy of each application, confirmation number and acceptance notice in one folder. Make a separate entry for Parts A and B, a Medicare Advantage or Part D plan, and any Medicare Supplement. These may have different start dates and different organizations handling enrollment.
| Check | What to confirm |
|---|---|
| Parts A and B | Read the coverage dates on your Medicare card or official enrollment notice. Contact Social Security—or RRB for railroad retirement enrollment—if they differ from what you requested. |
| Health or drug plan | Ask the insurer whether enrollment is accepted, which plan and contract apply, and the effective date. |
| Medigap | Check policy approval, the policy start date and the first premium. Do not assume an application guarantees acceptance. |
| Existing coverage | Coordinate the end date with the old insurer or benefits office after the replacement is confirmed. |
The official plan-enrollment guidance explains joining and changing coverage. Your notices and the insurer establish the details of your own election.
Before the first appointment
Prepare Your Cards, Doctors and Pharmacy
- Put the right cards together. Use our Medicare card guide to separate your federal card from health, drug and supplement cards.
- Confirm the specific provider and location. For Medicare Advantage, check the current plan network and any PCP or referral requirement. For Original Medicare, ask whether the provider accepts Medicare assignment. See the provider-network checklist.
- Check prescriptions before you run out. Give the pharmacy your current drug-plan information and ask about the drug list, preferred pharmacy status, prior authorization and the first refill.
- Review ongoing care. Ask your plan and treating team how an existing authorization, scheduled procedure, equipment rental or specialist course will be handled after the change.
Medicare’s guide to getting services explains the different card and provider checks.
Keep coverage organized
Set Up Payments and Online Access
Check the first benefit deduction or bill against the coverage and months it pays for. A zero-dollar plan premium does not automatically remove your Part B premium. Our Medicare premium-payment guide separates federal premiums from insurer bills.
Create your secure Medicare account through Medicare.gov and, if useful, an account with your insurer. Keep contact information current. If a family member will help, use the organization’s authorization process; knowing your password does not establish permission to discuss your records.
Keep a simple contact sheet with your plan’s member-services number, your pharmacy, your doctor and your broker. Save enrollment correspondence and explanations of benefits with your records. These are practical organization steps, not additional enrollment requirements. Medicare’s new-coverage tips cover account access and authorized helpers.
Use your benefits
Ask About the Right Preventive Visit
The one-time “Welcome to Medicare” preventive visit is available within the first 12 months of Part B. It is different from an annual physical and from the later Annual Wellness Visit. Ask the office which visit it is scheduling and whether extra diagnostic services could generate a charge. Review our Welcome versus Wellness Visit guide and Medicare’s coverage conditions.
If something is missing
Follow Up Before a Small Problem Becomes a Coverage Problem
My card has not arrived. Should I submit another application?
First ask the organization handling enrollment to verify the status, mailing address and effective date. Request temporary proof or a replacement card when appropriate. A missing envelope does not, by itself, show whether enrollment succeeded or failed.
My pharmacy cannot process the first prescription. What now?
Ask the pharmacy for the rejection reason and call the plan. It could involve eligibility, card information, pharmacy participation or a coverage rule. Ask whether a transition supply or coverage request applies; do not assume it is automatic. The prescription-coverage problem guide gives next steps.
Who should I call about a denial?
The office or pharmacy can explain what was submitted; the plan or Medicare can explain its decision. Keep the notice and appeal deadline. Use our claims and appeals guide.
Official information
Sources and Further Reading
- Medicare: Joining a health plan
- Medicare: Getting services
- Medicare: Five tips for using coverage
- Medicare: Welcome preventive visit
Sources checked September 10, 2026.
Independent Medicare guidance
Need Help With Your Next Step?
Have a question about your new cards, a bill, your pharmacy or when coverage starts? Ask Benjamin for help understanding the next step. Keep any notice and its deadline available.
Thompson Medicare Brokerage is not connected with or endorsed by the U.S. government or the federal Medicare program. This educational guide does not replace an official coverage or eligibility determination. Your circumstances and current Medicare and plan rules control.