What is the average health insurance denial rate in Michigan?

Health insurers in Michigan deny approximately 18.7% of ACA marketplace claims, which is 0.4 points below the national average of 19.1%.

How do I appeal a denied insurance claim in Michigan?

File a written internal appeal with your insurer within 180 days of the denial. If denied again, escalate to an Independent Medical Review (IMR) with the Michigan Department of Insurance and Financial Services. IMRs are free, decided by independent clinicians, and have high success rates.

Which insurance company denies the most claims in Michigan?

Based on CMS Marketplace Transparency data, the insurers with the highest denial rates in Michigan are Molina Healthcare, Ambetter from Centene, Aetna (CVS Health). See each insurer's full denial report for category-level breakdowns.

What are my rights if my insurance claim is denied in Michigan?

You have the right to a full written explanation of the denial, an internal appeal, and an external Independent Medical Review with the Michigan Department of Insurance and Financial Services. Federal law requires insurers to respond to standard appeals within 30 days and urgent appeals within 72 hours.

Michigan Insurance Denial Report

The worst health insurers in Michigan
by claim denial rate

Michigan averages a 18.7% denial rate — 0.4 points below the national average. About 455,000 claims are denied annually.

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18.7%

Michigan avg denial rate

19.1%

National average

455,000

Annual denials in state

>80%

Appeals overturned when filed

Health insurance denials in Michigan

In Michigan, the average health insurance claim denial rate stands at 18.7%, slightly below the national average of 19.1%. This translates to approximately 455,000 annual denials, highlighting a significant issue that many residents face when navigating their health insurance coverage. Understanding this denial rate is crucial for patients, as it underscores the importance of being proactive in managing their health claims and the potential challenges they may encounter in securing necessary medical services and reimbursements.

Fortunately, patients in Michigan have the right to appeal denied claims, empowering them to take action against unjust decisions made by insurance companies. If an internal appeal does not yield satisfactory results, patients can escalate their case to the Michigan Department of Insurance and Financial Services, the regulatory body overseeing insurance practices in the state. This process not only provides patients with a pathway to challenge denials but also serves as a means to hold insurers accountable for their decisions, ultimately fostering a more equitable healthcare system for all Michiganders.

Worst insurers in Michigan by denial rate

Source: CMS Marketplace Transparency Report 2023. In-network ACA marketplace claims only.

Molina Healthcare

22.4% denial rate

Molina denies 22.4% of claims — 3.3 points above the national average. Their appeal overturn rate is 55%.

GLP-1 Medications: 38% deniedSpecialty Medications: 30% deniedMental Health: 25% denied

Full Molina denial report →

Ambetter from Centene

21.3% denial rate

Ambetter denies 21.3% of claims — 2.2 points above the national average. Their appeal overturn rate is 53%.

GLP-1 Medications: 36% deniedSpecialty Medications: 28% deniedMental Health: 24% denied

Full Ambetter denial report →

Aetna (CVS Health)

17.2% denial rate

Aetna denies 17.2% of claims — 1.9 points below the national average. Their appeal overturn rate is 65%.

GLP-1 Medications: 28% deniedSpecialty Medications: 22% deniedMental Health: 18% denied

Full Aetna denial report →

Your rights as a Michigan insurance patient

Michigan law provides essential protections for patients facing claim denials. Patients have the right to an internal appeal, allowing them to contest the insurer's decision directly. If the internal appeal is unsuccessful, they can request an external Independent Medical Review, which offers an unbiased evaluation of the claim. The Michigan Department of Insurance and Financial Services oversees these processes, ensuring that patients are treated fairly. Additionally, filing a complaint with this regulatory body is free of charge and can exert pressure on insurers to reconsider their decisions, further empowering patients in their healthcare journey.

Michigan Department of Insurance and Financial Services
https://www.michigan.gov/difs

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How to appeal a denial in Michigan

1
Request the denial in writing
Ask your insurer for the specific clinical criteria and coverage policy they used to deny you. They are legally required to provide it within 30 days.
2
File your internal appeal
Send a written appeal to your insurer within 180 days. Cite your doctor's clinical documentation, relevant medical guidelines, and Michigan insurance law. A well-written appeal citing specific laws wins over 80% of the time.
3
Escalate to the state if denied again
If your internal appeal is denied, file an Independent Medical Review (IMR) with the Michigan Department of Insurance and Financial Services. This is free and decided by independent clinicians. Their decision is often binding.
4
Use disputes.health to generate your letter
Our agents generate a clinic-grade appeal letter in under 15 minutes — citing your state's laws, relevant medical guidelines, and your specific situation. We then submit it to your insurer for you.

How to appeal a denial →GLP-1 denial guide →Mental health denial guide →All public resources →

Denied in Michigan? Fight back today.

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The worst health insurers in Michiganby claim denial rate