Medicare enrollment dates
See your seven-month Initial Enrollment Period, your earliest coverage date and your Medigap open enrollment window.
Part D is Medicare prescription drug coverage. With Original Medicare, alone or with a Medigap plan, you get it through a stand-alone drug plan. The right one covers your medicines at the pharmacy you use for the lowest total cost across the year, which is rarely the one with the lowest premium.
We do not offer every plan available in your area. Currently we represent 10 organizations which offer 106 products in your area. Please contact Medicare.gov or 1-800-MEDICARE to get information on all of your options. Headwaters Health and Wealth is not connected with or endorsed by the United States government or the federal Medicare program. Medicare has neither endorsed nor reviewed this information.
For 2027 the CMS Landscape lists 8 stand-alone Part D plans in Colorado, with monthly premiums from $5.30 to $260.20 and deductibles from $300 to $700 (CMS CY2027 Landscape). Premium is only one piece. Each plan has its own drug list (formulary), its own tiers and its own preferred pharmacies, so two plans with similar premiums can be hundreds of dollars apart once your prescriptions are priced.
There is a yearly cap on what you pay out of pocket for covered Part D drugs. In 2026 the cap is $2,100; once you reach it, covered drugs cost you $0 for the rest of the year. For 2027 CMS has set the cap at $2,400 and the most a plan's deductible can be at $700 (CMS CY2027 Rate Announcement). The cap helps most if you take expensive medicines, but how quickly you reach it, and what you pay on the way, still depends on the plan.
A worked example, as an illustration only. Suppose your covered prescriptions are costly enough to reach the cap in 2027. You pay up to $700 first if your plan uses the full deductible, then your copays or coinsurance until your out-of-pocket spending reaches $2,400, then $0 for covered drugs for the rest of the year. Under the 2026 rules the same year stopped at $2,100, so the most you can spend on covered drugs rises by $300. Your premium is paid on top of the cap, and drugs not on the plan's list do not count toward it.
Timing matters. If you go 63 days or more in a row without Part D or other creditable drug coverage after your Initial Enrollment Period, Medicare adds a late enrollment penalty to your premium for as long as you have Part D. It is 1% of the national base premium for each full month without coverage, rounded to the nearest 10 cents (CMS). The base premium is $38.99 in 2026 and $41.33 in 2027 (CMS), so 20 months without coverage adds $7.80 a month in 2026 and $8.30 a month in 2027, recalculated every year.
A month by month example, as an illustration with a hypothetical drug. Say one covered brand-name drug has a negotiated price of $500 a month and your plan uses the full $700 deductible and the standard 25% coinsurance that applies after it (CMS). In January you pay the full $500. In February you pay the last $200 of the deductible plus 25% of the remaining $300, or $275. From March to December you pay 25% of $500, $125 a month. The year comes to $2,025, under the $2,400 cap, so the cap never applies. Double the drug price and the year would stop at the cap instead. The $500 price is an assumption to show the arithmetic; your real prices come from each plan's formulary, which is why I price your actual list.
Big January bills can be spread out. Since 2025 every Part D plan offers the Medicare Prescription Payment Plan: you pay $0 at the pharmacy for covered drugs and the plan bills you monthly, with no interest or fees. It does not lower what you owe, and it may not suit people with low or steady costs, people who join late in the year, or people with Extra Help (CMS). In the example above it would turn a $500 January into a smaller bill spread across the year.
Insulin has its own limit: you pay no more than $35 for a one-month supply of each covered insulin product, and you do not pay the deductible for it (CMS).
Many Medicare Advantage plans include Part D, so this page is mainly for people on Original Medicare. If you are comparing the two routes, I price your drugs both ways so the comparison is fair.
Your needs and situation are unique, and I am committed to spending the time to get to know you so you get coverage and support that fits your lifestyle.
Extra Help, the federal program that lowers Part D premiums and copays for people with limited income and savings, is applied for through Social Security. People enrolled in a Health First Colorado Medicare Savings Program qualify for Extra Help automatically.
Colorado's Medicare Savings Programs, run by Health First Colorado, can also pay your Part B premium. For 2026 the income limits for a single person run from $1,350 a month (QMB) to $1,816 a month (QI-1) (Colorado HCPF), and working income can raise the limit. Apply through your county human services office or PEAK.
For a no-cost, no-obligation Part D review, call me at (303) 887-8584 and bring your prescription list.
You have Original Medicare, alone or with a Medigap plan, and need drug coverage. Or you already have a Part D plan and want to know whether it still fits your 2027 prescriptions.
Not without pricing your drugs. A low premium plan can put one of your medicines on a high tier or leave it off the drug list, and that can cost more over a year than the premium saves. Compare the total yearly cost for your exact prescriptions at your pharmacy, then decide. Lisa walks you through this at your review. Call (303) 887-8584.
Sources: CY2027 Medicare Advantage and Part D Landscape (Centers for Medicare & Medicaid Services, 2027) ; CY2027 Medicare Advantage and Part D Rate Announcement (Centers for Medicare & Medicaid Services, 2026/2027) ; CY2027 Part D national average bid and base beneficiary premium (Centers for Medicare & Medicaid Services, 2027) ; Medicare Savings Programs (MSP), Health First Colorado (Colorado Department of Health Care Policy and Financing, 2026) ; CMS: Costs in the coverage phases of Part D (Centers for Medicare & Medicaid Services, 2026/2027) ; CMS: Medicare Prescription Payment Plan (Centers for Medicare & Medicaid Services, 2026) ; CMS: Insulin (Centers for Medicare & Medicaid Services, 2026) . Reviewed 2026-10-14.
Free calculators for this coverage. Results are estimates, not quotes.
See your seven-month Initial Enrollment Period, your earliest coverage date and your Medigap open enrollment window.
See what going without drug coverage adds to your Part D premium, for as long as you keep Part D.
Estimate what your prescriptions cost you in a year on the 2027 Part D standard benefit (the $2,400 cap) or the 2026 benefit.
See whether your income adds a surcharge to your Part B and Part D premiums, and how much.
Compare what each path could cost you in a typical year and in a heavy-use year, with medical and drug costs counted separately.
How Medicare drug coverage works for 2027: the $700 maximum deductible, the $2,400 out-of-pocket cap, worked yearly cost examples, the late penalty, and all 8 standalone Part D plans in Colorado.
What to check before you choose a 2027 Medicare plan, and how Lisa checks it with you: your doctors and hospital in each plan's 2027 directory, your prescriptions on each 2027 formulary, how to read a drug tier, prior authorization and step therapy, a Brighton worked example and the questions to ask the office and the pharmacy.
If your income is limited, Health First Colorado can pay your Medicare premiums through a Medicare Savings Program, and Extra Help can lower your drug costs. The 2026 Colorado limits, a worked example, and how to apply.
Every 2026 Medicare cost in one place from CMS: Part A, the $202.90 Part B premium and $283 deductible, IRMAA, late penalties, Part D limits for 2026 and 2027, and a worked yearly total near Brighton.
What to check every fall before your Medicare plan renews: the Annual Notice of Change, your drugs and pharmacy, your doctors, a worked total yearly cost comparison, and the questions to ask before December 7, 2026.
How the Part A, Part B and Part D late enrollment penalties are worked out, what they cost with 2026 and 2027 figures, who is exempt, and how to avoid or contest one in Colorado.
What IRMAA is, the 2026 income brackets and premiums, which tax return Social Security uses, and how to ask for a new decision after retirement or another life-changing event.
For 2027 CMS has set the yearly out-of-pocket threshold for covered Part D drugs at $2,400, up from $2,100 in 2026, and the most a plan's deductible can be at $700. Once you reach the cap, covered drugs cost you $0 for the rest of the year. Premiums are paid on top.
Headwaters checks this for you before you decide. Call Lisa at (303) 887-8584.
Join a Part D plan, or a Medicare Advantage plan with drug coverage, when you first get Medicare, unless you have creditable drug coverage from an employer or another source. A gap of 63 days or more in a row without creditable coverage can add a penalty for as long as you have Part D.
Lisa walks you through the plans for your ZIP code at your review. Call (303) 887-8584.
Usually only during Annual Enrollment, October 15 to December 7. Special Enrollment Periods apply after events such as a move or qualifying for Extra Help or Health First Colorado. That is why pricing your drugs carefully each fall matters.
Lisa checks how this applies to your own doctors and prescriptions at no cost. Call (303) 887-8584.
We check whether you qualify for Extra Help and file the application with you, and we help with Health First Colorado Medicare Savings Program applications through your county human services office or PEAK. Enrolling in a Medicare Savings Program qualifies you for Extra Help automatically.
Part D Prescription Drug Plans in Brighton, the northeast Denver metro and across Colorado: no pressure, plain answers, and a review every year.
992 South Fourth Avenue, Brighton, CO 80601 · (303) 887-8584
Content reviewed by Lisa Asmussen, Medicare Broker and Licensed Insurance Agent at Headwaters Health and Wealth in Brighton, Colorado, certified to sell Medicare plans since 2018 (8 years). How we source and review our content. Last updated .