Medicare Annual Enrollment is one of the most important times of the year for seniors in Denver. Between October 15 and December 7, beneficiaries have the opportunity to review their current coverage and make changes for the upcoming year. This includes switching Medicare Advantage plans, updating Part D prescription drug coverage, or returning to Original Medicare.
However, many Denver residents make costly mistakes during this period—often without realizing it until months later when medical bills increase or coverage issues appear. The truth is that Medicare plans change every year, and failing to review those changes carefully can lead to higher costs, limited access to doctors, and gaps in prescription coverage.
This guide breaks down the most common Medicare mistakes Denver residents make during annual enrollment—and how to avoid them.
Mistake 1: Automatically Renewing Without Reviewing Plan Changes
One of the biggest mistakes seniors make is simply letting their current Medicare plan renew automatically without reviewing any changes.
Every year, insurance companies update their plans. These changes may include:
- Higher monthly premiums
- Increased copayments for doctor visits
- Changes in hospital coverage
- Adjustments to prescription drug tiers
- Reduced benefits or added restrictions
Many beneficiaries assume that if they liked their plan last year, it will remain the same. Unfortunately, that is rarely true.
Why this is a problem
Even small changes can have a major financial impact over time. For example, a $10 increase in copays per visit or a medication moving to a higher tier can cost hundreds or even thousands of dollars annually.
How to avoid it
Always read your Annual Notice of Change (ANOC) letter. This document outlines exactly what is changing in your plan for the upcoming year. Compare it carefully with your current healthcare usage before deciding to renew.
Mistake 2: Ignoring Prescription Drug Coverage Changes
Prescription drugs are one of the most overlooked areas during Medicare renewal—and also one of the most expensive mistakes.
Medicare Part D and Medicare Advantage plans use formularies (lists of covered drugs) that change every year. A medication that was affordable this year may:
- Move to a higher cost tier
- Require prior authorization
- No longer be covered at all
- Only be available at certain pharmacies
Why this matters in Denver
Many seniors in Denver rely on multiple prescriptions for chronic conditions such as diabetes, hypertension, or arthritis. Even one small formulary change can significantly increase out-of-pocket costs.
How to avoid it
During annual enrollment:
- Make a list of all your medications
- Check if each drug is still covered
- Compare pharmacy pricing options
- Look for alternative plans that offer better drug coverage
It is always worth comparing Part D options rather than assuming your current plan remains the best.
Mistake 3: Not Checking Doctor and Hospital Networks
Another major mistake is failing to confirm whether your doctors and hospitals are still in-network.
Medicare Advantage plans in particular operate within provider networks. If your preferred doctor leaves the network, you may face:
- Higher out-of-pocket costs
- Limited access to specialists
- Needing to switch providers unexpectedly
Why this is especially important in Denver
Denver has a large healthcare system with providers like UCHealth, AdventHealth, and other regional clinics. Network participation can change yearly, meaning your trusted doctor may no longer be covered.
How to avoid it
Before renewing your plan:
- Verify your primary care physician is in-network
- Check all specialists you currently see
- Confirm your preferred hospitals are still covered
Even if everything looks fine, it is worth double-checking every year.
Mistake 4: Focusing Only on Monthly Premiums
Many seniors choose or keep a Medicare plan based solely on the monthly premium. While affordability is important, the premium is only one part of the total cost.
What people often miss
A low-premium plan may come with:
- Higher deductibles
- Expensive copayments
- Limited hospital coverage
- Higher prescription drug costs
On the other hand, a slightly higher premium plan may offer:
- Lower out-of-pocket costs
- Better drug coverage
- More predictable healthcare expenses
Example scenario
A $0 premium Medicare Advantage plan might seem attractive, but if it charges $300 per hospital day or high specialist fees, it could cost more than a $40 monthly premium plan with better coverage.
How to avoid it
Always evaluate:
- Annual deductible
- Copays for services
- Maximum out-of-pocket limits
- Prescription drug costs
Look at total yearly spending, not just monthly premiums.
Mistake 5: Overlooking Extra Benefits and Perks
Medicare Advantage plans often include extra benefits that Original Medicare does not cover. However, many people fail to review these benefits during annual enrollment.
Common extras include:
- Dental cleanings and procedures
- Vision exams and glasses
- Hearing aids
- Wellness programs and gym memberships
- Over-the-counter (OTC) allowances
- Transportation to medical appointments
Why this matters
These benefits can significantly reduce out-of-pocket expenses. However, not all plans offer the same level of coverage.
How to avoid it
Compare plans based on:
- Which dental services are included
- Annual limits on vision coverage
- Hearing aid allowances
- Fitness or wellness programs
Choosing a plan with stronger supplemental benefits can improve both health and financial well-being.
Mistake 6: Ignoring Star Ratings and Plan Quality
Medicare assigns star ratings to plans based on performance and member satisfaction. These ratings are often overlooked, but they provide valuable insight into plan quality.
Star ratings consider:
- Customer service quality
- Preventive care effectiveness
- Chronic disease management
- Member satisfaction surveys
Why it matters
A lower-rated plan may have more administrative issues, claim delays, or poor customer support—even if the cost is attractive.
How to avoid it
When comparing plans, prioritize those with higher star ratings. This often indicates better service and more reliable coverage.
Mistake 7: Missing the Enrollment Deadline
The Medicare Annual Enrollment Period runs from:
October 15 to December 7
Missing this deadline is one of the most serious mistakes because it limits your ability to make changes.
What happens if you miss it
- You may be locked into your current plan for another year
- You could miss out on better coverage options
- Prescription costs may increase unexpectedly
How to avoid it
- Start reviewing plans early in October
- Do not wait until December
- Set reminders for deadlines
- Seek help if needed before the cutoff date
Mistake 8: Not Reassessing Health Needs Each Year
Healthcare needs change over time. Many seniors fail to consider how their personal health situation has evolved before choosing a plan.
Ask yourself:
- Have I developed new health conditions?
- Do I need more frequent doctor visits?
- Am I taking new medications?
- Do I expect surgery or treatment next year?
A plan that worked well last year may not fit your current needs.
Mistake 9: Not Comparing Multiple Plan Options
Many beneficiaries stick with the same insurance provider year after year without comparing alternatives.
In reality, Medicare Advantage and Part D plans in Denver change frequently, and new plans may offer:
- Lower costs
- Better drug coverage
- Improved provider networks
- Additional benefits
How to avoid it
Always compare at least 2–3 plans before making a decision. Even if you stay with your current plan, comparison ensures you are making an informed choice.
Mistake 10: Trying to Navigate Medicare Alone
Medicare can be complex. Between drug formularies, provider networks, and cost structures, it is easy to miss important details.
Why this is risky
A small misunderstanding can lead to:
- Unexpected medical bills
- Loss of prescription coverage
- Limited access to doctors
How to avoid it
Many Denver seniors benefit from speaking with a Medicare advisor who can:
- Compare plans side by side
- Review prescriptions and doctors
- Explain coverage differences clearly
- Help avoid costly mistakes
Final Thoughts
Medicare Annual Enrollment is not just a routine task—it is a critical opportunity to optimize your healthcare coverage for the year ahead. Unfortunately, many Denver residents make avoidable mistakes that lead to higher costs and reduced access to care.
By avoiding these common errors—such as ignoring plan changes, overlooking drug coverage, focusing only on premiums, or missing deadlines—you can make smarter decisions and ensure your Medicare plan truly meets your needs.
Taking the time to review your options carefully each year can lead to better healthcare outcomes, greater peace of mind, and significant long-term savings.