Best Medicare Supplement Plans in Colorado (2026)

Key Takeaways

Plans B, K, L and M from Transamerica offer the most affordable Medigap rates among Colorado's popular policies, saving residents $0 to $148 monthly versus state averages.

For Plans A, C, D, F, G and N in Colorado, USAA, Wisconsin Physicians Service, State Farm, MedMutual Protect and Old Surety provide the lowest rates.

At age 65, Colorado residents pay $35 to $491 monthly for Medicare Supplement coverage based on which plan type they choose.

Best Cheap Medicare Supplement Companies in Colorado

Monthly premiums for Medigap coverage in Colorado span $87 to $213 for seniors aged 65, offering strong financial protection across the state's competitive market. Our analysis of the lowest-cost providers across 10 standardized plan types found affordable options that help Colorado residents save significantly on their health care costs.

Transamerica leads with the best rates across several popular plans, including Plan K at $87 per month, Plan L at $130 monthly and Plan M at $160 per month. USAA provides Plan A coverage, while Wisconsin Physicians Service offers Plan C and State Farm handles Plan D options. MedMutual Protect covers Plans F and N, and Old Surety rounds out the affordable choices with Plan G coverage. These low-cost options save Colorado seniors $0 to $148 per month compared to average state rates.


USAA	A	$105	$108	Attained Age Pricing
Transamerica	B	$213	$54	Issue Age Pricing
Wisconsin Physicians Service	C	$193	$148	Attained Age Pricing
State Farm	D	$174	$38	Attained Age Pricing
MedMutual Protect	F	$193	$140	Attained Age Pricing
Old Surety	G	$163	$119	Issue Age Pricing
Transamerica	K	$87	$16	Issue Age Pricing
Transamerica	L	$130	$43	Issue Age Pricing
Transamerica	M	$160	$0	Issue Age Pricing
MedMutual Protect	N	$115	$127	Attained Age Pricing

*These rates reflect Medigap premiums for 65-year-olds.

Transamerica

MoneyGeek Rating

4.6/ 5

4.8/5Affordability

4.6/5Pricing Style

4.4/5Plan Availability

Average Plan G Rate
$240
Plan Types
A, B, C, D, F, G, K, L, M, N

pros
- All plan types available
- Best Plan B rates in Colorado ($213/month)
- Best rates for cost-sharing Plans K and L
cons
- Attained Age Pricing means your premiums increase with age
- No high-deductible Plan G option
Transamerica offers all 10 standardized plan types. The company, with over a century in the insurance industry, holds the best rates for several plans, including Plan B at $213 monthly and Plan K at just $87 per month, saving Colorado seniors $54 and $16, respectively. Their Plan L costs $130 monthly with $43 in savings, while Plan M runs $160 per month, giving seniors a full range of A, B, C, D, F, G, K, L, M and N options to choose from.

Transamerica provides comprehensive coverage options that include additional benefits like foreign travel emergency coverage.

USAA

MoneyGeek Rating

4.5/ 5

4.8/5Affordability

4.3/5Pricing Style

4.1/5Plan Availability

Average Plan G Rate
$215
Plan Types
A, F, G, N

pros
- Best Plan A rates in Colorado ($105/month)
- Additional benefits available for military members
- Strong financial stability with high ratings
cons
- Only offers four plan types (A, F, G, N)
- Attained Age Pricing means premiums increase with age
- No cost-sharing plans (K, L) or high-deductible options
USAA ranks first for Plan A at just $105 monthly, saving eligible families $108 compared to other options in the state. USAA offers four plan types, including A, F, G and N, with costs ranging from $105 to $324 per month for new enrollees.

One of USAA's biggest unique advantages is its focus on serving military families, offering tailored products and services that meet their specific needs. The company maintains an A++ rating from AM Best.

Wisconsin Physicians Service

MoneyGeek Rating

4.2/ 5

4.6/5Affordability

3.9/5Pricing Style

3.4/5Plan Availability

Average Plan G Rate
$175
Plan Types
A, C, F, G, N

pros
- Best Plan C rates in Colorado ($193/month)
- Five plan types including popular options A, F, and N
- Strong financial stability with good ratings
cons
- Attained Age Pricing means premiums increase with age
- Doesn't offer cost-sharing plans (K or L) or Plan M
- No high-deductible Plan G option
Wisconsin Physicians Service (WPS) leads the state for Plan C at just $193 monthly, saving Colorado residents $148 compared to other insurers. WPS offers five plan types, including A, C, F, G and N, with premiums ranging from $142 to $272 for comprehensive coverage options.

WPS has an extensive network of health care providers and customer support designed specifically for Medicare beneficiaries. WPS holds an AM Best rating of A (Excellent).

State Farm

MoneyGeek Rating

4.6/ 5

4.9/5Affordability

4.3/5Pricing Style

4.2/5Plan Availability

Average Plan G Rate
$175
Plan Types
A, C, D, F, G, N

pros
- Best Plan D rates in Colorado ($174/month)
- Six plan types including less common but valuable options (D)
- Strong financial stability with good ratings
cons
- Attained Age Pricing means your premiums increase with age
- Doesn't offer cost-sharing plans (K or L) or high-value Plan M
- No high-deductible Plan G option
State Farm offers six plan types, including A, C, D, F, G and N, with costs ranging from $135 to $358 monthly for new enrollees. State Farm ranks first for Plan D at just $174 per month, saving Colorado seniors $38 compared to the state average.

Premiums increase with age (Attained Age Pricing), which means your costs will rise as you get older to reflect higher health care expenses.

MedMutual

MoneyGeek Rating

4.5/ 5

4.9/5Affordability

4.4/5Pricing Style

4/5Plan Availability

Average Plan G Rate
$168
Plan Types
A, D, F, G, N

pros
- Best Plan F rates in Colorado ($193/month)
- Best Plan N rates in Colorado ($115/month)
- Strong financial stability with good ratings
cons
- Doesn't offer regular Plan G or high-deductible version
- Attained Age Pricing means your premiums increase with age
- No cost-sharing plans (K, L)
MedMutual Protect has the cheapest rates for Plan F at $193 monthly and Plan N at $115 monthly, offering significant savings compared to state averages. With five plan types available, including A, D, F, G and N, MedMutual Protect's monthly costs range from $60 to $362, giving seniors affordable options across different coverage levels.

MedMutual Protect has responsive customer service and high satisfaction ratings among policyholders, combined with additional benefits like wellness programs and discounts on health services.

Old Surety

MoneyGeek Rating

4.2/ 5

5/5Affordability

3.7/5Pricing Style

3.1/5Plan Availability

Average Plan G Rate
$163
Plan Types
A, F, G

pros
- Best Plan G rates in Colorado ($163/month)
- Stable financial strength with good AM Best rating
cons
- Doesn't offer Plans B, C, D, K, L, M or N
- Attained Age Pricing means your premiums increase with age
- No high-deductible Plan G option
Old Surety focuses on delivering quality Medicare Supplement coverage. It offers three plan types in Colorado: A, F and G, with Plan G leading their portfolio at just $163 monthly, saving Colorado seniors $119 compared to state averages. Their cost range spans $141 to $228, keeping coverage affordable across all three options.

With an AM Best rating of A- (Excellent), Old Surety provides strong financial stability and reliability for long-term coverage confidence.

Find Colorado Medicare Supplement Plans That Fit Your Needs

Everyone's coverage needs are different, so explore the table below to compare all available options and find the Colorado Medicare Supplement company that matches your specific situation.

Data filtered by:


Old Surety	G	No	65	$163	$0	No Data
LifeShield National	G	No	65	$164	$0	No Data
Atlantic Capital	G	No	65	$166	$0	No Data
MedMutual Protect	G	No	65	$168	$0	No Data
State Farm	G	No	65	$175	$0	No Data
Wisconsin Physicians Service	G	No	65	$175	$0	No Data
Humana	G	No	65	$177	$0	No Data
Bankers Life	G	No	65	$179	$0	No Data
Wellcare	G	No	65	$179	$0	No Data
Anthem	G	No	65	$179	$0	No Data

Colorado Medicare Supplement Plan Cost

For 65-year-olds in Colorado, Medicare Supplement insurance costs range from $103 to $341 monthly based on which plan you choose.

Plan G, the state's most popular choice, averages $282 per month and provides comprehensive coverage at a mid-range price. At the affordable end, Plan K offers the lowest premiums at $103 monthly, while Plan C tops the cost spectrum at $341. Seniors wanting strong protection with lower premiums often choose Plan N at $242 monthly. Other budget-conscious options include Plan M at $160 and Plan L at $173 each month.


A	$213	$2,556
B	$267	$3,204
C	$341	$4,092
D	$212	$2,544
F	$333	$3,996
G	$282	$3,384
K	$103	$1,236
L	$173	$2,076
M	$160	$1,920
N	$242	$2,904

How to Choose the Best Colorado Medicare Supplement Plan

When shopping for coverage in the Centennial State, you'll find that Medicare Supplement plans are standardized by federal law. This means Plan G offers identical benefits regardless of which company sells it to you. Companies compete mainly on price for this identical coverage.

Most Comprehensive Coverage

Plan G: Comparable to Plan F, covers everything except the Part B deductible.
Plan F: Covers all gaps, including Part B deductible and excess charges (closed to new members as of 2020).

Best Value Options

Plan D: Strong coverage without Part B deductible or excess charges.
Plan N: Extensive benefits with minor copays and lower premiums.

Budget-Friendly Choices

Plan M: Covers 50% of Part A deductible with moderate premiums.
Plan K: Most affordable premiums with 50% cost-sharing and an out-of-pocket limit of $8,000.
Plan L: Similar to Plan K with 75% cost-sharing and a lower out-of-pocket limit of $4,000.

Premium Coverage

Plan C: Offers Part B deductible and foreign travel emergency coverage (not available for new enrollees as of 2020).

Learn More: What Does Medicare Cover and Not Cover?

How to Find the Best Colorado Medicare Supplement Company

After choosing your plan type, you'll want to compare providers in Colorado. Focus on these critical elements when selecting your Medicare Supplement insurer.

1
Customer satisfaction and complaints
Companies may have complaints about service, so these ratings help you identify trustworthy options. For a dependable insurer, examine customer feedback from J.D. Power and the NAIC. These resources provide valuable insights into company reliability and service quality.
2
Plan pricing
Identical plans cost different amounts across insurers. Do side-by-side comparisons to find the best value without sacrificing coverage quality or service standards. Look for the lowest cost while maintaining the protection you need for your health care expenses.
3
Added benefits
Insurers may provide discounts on other services like gym memberships. These perks add value to your coverage across different policy types, including Medigap plans. Consider how these extras increase your plan's worth when making your final decision.

Colorado Medicare Resources

For Colorado residents navigating Medicare, multiple free resources provide guidance and support.

Colorado State Health Insurance Assistance Program (SHIP): The Colorado SHIP provides free, unbiased counseling to Medicare beneficiaries, assisting with one-on-one counseling, plan comparisons and fraud prevention. They offer guidance to help individuals understand their Medicare options and benefits. Visit the Colorado State Health Insurance Assistance Program (SHIP)
Colorado Division of Insurance: The Colorado Division of Insurance offers resources for Medicare Supplement services, including rate comparisons and consumer protection. They also provide a consumer hotline for inquiries and assistance. Visit the Colorado Division of Insurance
Colorado Area Agencies on Aging: The Colorado Area Agencies on Aging assist with Medicare enrollment, benefits counseling and provide programs for older adults. They serve seniors, people with disabilities and caregivers. Find your local agency
Medicare.gov: The official federal Medicare website offers comprehensive information on all Medicare options, including a plan finder tool to compare Medicare Supplement, Medicare Advantage and Part D plans available in your ZIP code. Visit Medicare.gov

Medicare Supplement Plans in Colorado: FAQ

Frequently asked questions about Medigap coverage in Colorado are answered below.

What does Medigap cover in Colorado?

Medigap fills gaps in Original Medicare by covering Part A and Part B deductibles, coinsurance, copayments, and the first three pints of blood. Select plans also handle Part B excess charges, skilled nursing facility coinsurance, and foreign travel emergencies. But Medigap excludes prescription drugs, dental, vision, and long-term care services.

Are Medicare Supplement plans worth it?

Medicare Supplement plans benefit those who want stable costs and the freedom to visit any Medicare-accepting provider nationwide. They're helpful for seniors with ongoing health care needs, chronic conditions, or limited savings for unexpected medical bills. But healthy individuals with strong financial reserves might find Original Medicare's lower premiums more suitable for their situation.

When can I enroll in Medigap plans in Colorado?

You can enroll in Medigap plans anytime, but the optimal enrollment window is during your six-month Open Enrollment Period. This period begins when you turn 65 and enroll in Medicare Part B. During this initial enrollment period, insurance companies must accept you regardless of health conditions and cannot charge higher premiums for pre-existing medical issues.

Can I switch from Medicare Advantage to Medigap in Colorado?

Yes, you can switch from Medicare Advantage to Medigap in Colorado, though insurers can evaluate your health and potentially deny coverage or charge higher premiums based on medical conditions. The ideal time to make this transition is during your Medigap Open Enrollment Period at age 65, when you have guaranteed coverage rights. Outside this window, protection from denial becomes limited to specific qualifying circumstances.

Our Review Methodology

MoneyGeek collected data for all Medicare plans in Colorado for 65-year-olds and 75-year-olds, using the plan browsing tool at Medicare.gov. Unless otherwise noted, the data in this article references quotes pulled for 65-year-olds in the state.

We scored Medigap companies in Colorado based on three main categories to create a weighted score out of 5:

Affordability (50%): Providers with the lowest monthly cost score higher.
Pricing style (20%): Medigap insurers use three methods to determine premiums: Community Pricing, Issue-Age Pricing and Attained Age Pricing. We gave higher scores for pricing styles that are more stable and equitable, as follows: Community Pricing 1.0, Issue-Age Pricing 0.8, Attained-Age Pricing 0.6. Using this scaling, a slightly higher-cost community-rated plan can still score higher overall than a cheaper but more volatile attained-age plan.
Plan availability (30%): Providers with a wider range of plan types score higher, with weighted scoring given to the most popular plan types like Plan G, Plan F and Plan N.

About Mark Fitzpatrick

Mark Fitzpatrick, a Licensed Property and Casualty Insurance Producer, is MoneyGeek's resident Personal Finance Expert. He has analyzed the insurance market for over five years, conducting original research for insurance shoppers. His insights have been featured in CNBC, NBC News and Mashable.

Fitzpatrick holds a master’s degree in economics and international relations from Johns Hopkins University and a bachelor’s degree from Boston College. He's also a five-time Jeopardy champion!

He writes about economics and insurance, breaking down complex topics so people know what they're buying.

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Best Medicare Supplement Plans in Colorado (2026)

Best Cheap Medicare Supplement Companies in Colorado

Find Colorado Medicare Supplement Plans That Fit Your Needs

Colorado Medicare Supplement Plan Cost

How to Choose the Best Colorado Medicare Supplement Plan

How to Find the Best Colorado Medicare Supplement Company

Colorado Medicare Resources

Medicare Supplement Plans in Colorado: FAQ

What does Medigap cover in Colorado?

Are Medicare Supplement plans worth it?

When can I enroll in Medigap plans in Colorado?

Can I switch from Medicare Advantage to Medigap in Colorado?

Our Review Methodology

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