Prescription Drug Benefits

The Corewell Health medical plans through Priority Health provide coverage for prescription drugs as a part of the medical plan. Choose from one of the medical plans offered through Priority Health.

Summary of Prescription Drug Plans


Retail (30 day)
HMO plan
HDHP-HMO and
HDHP-POS plans

Tier 1

$15 copay

$15 copay*

Tier 2

$50 copay

$50 copay*

Tier 3

$100 copay

$80 copay*

Tier 4

$50 copay

20% up to $150*

Tier 5

$100 copay

20% up to $300*

*Copayments apply after the full medical deductible on the medical plan has been met.


Mail Order (90-day)
HMO plan
HDHP-HMO and
HDHP-POS plans

Tier 1

$30 copay

$30 copay*

Tier 2

$100 copay

$100 copay*

Tier 3

$200 copay

$160 copay*

Tier 4

$100 copay

20% up to $300*

Tier 5

$200 copay

20% up to $600*

*Copayments apply after the full medical deductible on the medical plan has been met.


Other Plan Details:  Certain contraceptive methods for women are covered at 100% under Preventive Health Services benefit. Eligible infertility drugs are available at 50% coinsurance.


Prescription drugs are sorted into tiers on our plans based on effectiveness and affordability. You can save on your prescription drug costs by filling with Tier 1 medications.


  • Tier 1: Low-cost generic drugs – proven to be as safe as brand name drugs – and select brand name drugs.
  • Tier 2: Preferred and lower-cost brand name drugs and some higher-cost generic drugs.
  • Tier 3: Non-preferred and expensive brand name drugs, as well as higher-cost generic drugs. These drugs may cost you a significant amount out-of-pocket.
  • Tier 4: Very expensive brand name and generic drugs, and preferred specialty drugs used to treat complex conditions. Specialty drugs often have high costs and may have special handling or storage requirements.
  • Tier 5: Non-preferred specialty drugs, and the most expensive brand name and generic drugs.

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All medical plans offer a mail order prescription drug program through Express Scripts. You may get a three-month supply of your prescription for the cost of only two copayments, after deductible with the HDHP medical plans.


Visit priorityhealth.com for more information on mail order: login and access your Priority Health account. You may also contact Priority Health Customer Service at 833.404.6610 or contact Express Scripts directly at 844.586.5349.

All medical plans offer a mail order prescription drug program through Express Scripts. You may get a three-month supply of your prescription for the cost of only two copayments, after deductible with the HDHP medical plans.


Visit priorityhealth.com for more information on mail order: login and access your Priority Health account. You may also contact Priority Health Customer Service at 833.404.6610 or contact Express Scripts directly at 844.586.5349.

A rider for prescription medication related to obesity treatment is covered by our medical plans (after deductible with the HDHP plans). As with all other prescription medication, the medication must be on the Priority Health formulary.

Specific to the HDHP-HMO and HDHP-POS plans, this rider allows those with a Chronic Condition such as asthma, cholesterol, depression, diabetes, heart conditions and/or Osteoporosis to get certain defined medications and services prior to the deductible needing to be met, refer to your Priority Health certificate of coverage for additional details.

On the HMO plan: Prescription drugs are available for a copay regardless of whether you have reached your deductible.


On the HDHP-HMO and HDHP-POS plans: You will pay prescription drugs costs out of pocket until you reach your medical plan deductible. After that point you will pay the above costs.


ServiceNow keyword: medical plan prescriptions