Quetiapine (Seroquel) — 2026 Medicare Part D coverage
quetiapine — sold as Seroquel: 23 forms appear in Medicare Part D formularies for 2026. This page reports what plans filed with CMS; it does not recommend a plan.
Which plans in your county cover quetiapine?
Pick a county to see every Medicare Advantage plan filed there and every stand-alone Part D plan in its region, with this drug's tier, restrictions and tier cost sharing.
How to read drug coverage
Tier is the cost-sharing tier the plan assigned the drug in its CMS formulary filing; lower tiers usually cost less. PA = prior authorization, ST = step therapy (try another drug first), QL = quantity limit. Not on formulary means the plan did not list this exact form; the plan may cover another strength or a formulary exception may be possible. Cost sharing is the plan's initial-coverage amount for the tier as filed with CMS; the deductible, the $2,100 annual out-of-pocket cap, the $35 insulin cap and negotiated prices for selected drugs can change what you actually pay. Formularies change during the year; the plan's formulary document and Medicare.gov govern.
What the star rating under each Medicare Advantage plan means
What the star rating means. CMS rates every Medicare Advantage contract (the "H" number in the plan ID — all plans under it share the rating) on a 1-to-5 scale each October, from about 40 measures of care quality, member experience, complaints and appeals, customer service and, for plans with drug coverage, drug safety and pricing. The 2026 rating is largely based on performance measured in 2024.
5 Excellent4 Above average3 Average2 Below average1 Poor
Not rated means CMS published no overall rating — usually a contract too new to be measured or with too few members ("not enough data"); it is not a low score. A 5-star contract can be joined outside the normal enrollment windows (the 5-star Special Enrollment Period, Dec 8 – Nov 30). Medicare.gov flags contracts rated below 3 stars for three years running as low-performing. Stars describe the contract's past performance as CMS measured it; they are not a recommendation, and they do not tell you whether a plan's network, drugs or costs fit you.
Forms and strengths in 2026 formularies
| Form | Formularies listing it | Most common tier | PA | ST | QL |
|---|---|---|---|---|---|
| QUEtiapine fumarate 100 MG Oral Tablet generic · RxCUI 312743 | 328 (100%) | 2 | 44 | 0 | 211 |
| QUEtiapine fumarate 200 MG Oral Tablet generic · RxCUI 317174 | 328 (100%) | 2 | 44 | 0 | 211 |
| QUEtiapine fumarate 25 MG Oral Tablet generic · RxCUI 312744 | 328 (100%) | 2 | 44 | 0 | 215 |
| QUEtiapine fumarate 300 MG Oral Tablet generic · RxCUI 312745 | 328 (100%) | 2 | 44 | 0 | 211 |
| QUEtiapine fumarate 400 MG Oral Tablet generic · RxCUI 616483 | 328 (100%) | 2 | 44 | 0 | 211 |
| QUEtiapine fumarate 50 MG Oral Tablet generic · RxCUI 616487 | 328 (100%) | 2 | 44 | 0 | 213 |
| QUEtiapine fumarate 50 MG 24HR Extended Release Oral Tablet generic · RxCUI 853201 | 306 (93%) | 2 | 95 | 1 | 236 |
| QUEtiapine fumarate 150 MG 24HR Extended Release Oral Tablet generic · RxCUI 895670 | 305 (93%) | 2 | 95 | 1 | 236 |
| QUEtiapine fumarate 200 MG 24HR Extended Release Oral Tablet generic · RxCUI 721791 | 305 (93%) | 2 | 95 | 1 | 236 |
| QUEtiapine fumarate 300 MG 24HR Extended Release Oral Tablet generic · RxCUI 721794 | 305 (93%) | 2 | 95 | 1 | 235 |
| QUEtiapine fumarate 400 MG 24HR Extended Release Oral Tablet generic · RxCUI 721796 | 305 (93%) | 2 | 95 | 1 | 235 |
| QUEtiapine fumarate 150 MG Oral Tablet generic · RxCUI 389201 | 266 (81%) | 2 | 44 | 0 | 185 |
| SEROQUEL XR 150 MG 24HR Extended Release Oral Tablet brand · RxCUI 895671 | 1 (0%) | 1 | 1 | 0 | 1 |
| SEROQUEL XR 200 MG 24HR Extended Release Oral Tablet brand · RxCUI 721793 | 1 (0%) | 1 | 1 | 0 | 1 |
| SEROQUEL XR 300 MG 24HR Extended Release Oral Tablet brand · RxCUI 721795 | 1 (0%) | 1 | 1 | 0 | 1 |
| SEROQUEL XR 400 MG 24HR Extended Release Oral Tablet brand · RxCUI 721797 | 1 (0%) | 1 | 1 | 0 | 1 |
| SEROQUEL XR 50 MG 24HR Extended Release Oral Tablet brand · RxCUI 853202 | 1 (0%) | 1 | 1 | 0 | 1 |
| SEROquel 100 MG Oral Tablet brand · RxCUI 153639 | 1 (0%) | 1 | 1 | 0 | 1 |
| SeroQUEL 200 MG Oral Tablet brand · RxCUI 153640 | 1 (0%) | 1 | 1 | 0 | 1 |
| SeroQUEL 25 MG Oral Tablet brand · RxCUI 153638 | 1 (0%) | 1 | 1 | 0 | 1 |
| SeroQUEL 300 MG Oral Tablet brand · RxCUI 284509 | 1 (0%) | 1 | 1 | 0 | 1 |
| SeroQUEL 400 MG Oral Tablet brand · RxCUI 616485 | 1 (0%) | 1 | 1 | 0 | 1 |
| SeroQUEL 50 MG Oral Tablet brand · RxCUI 616489 | 1 (0%) | 1 | 1 | 0 | 1 |
Counts are formularies (of 328) in the CMS file that list the form, and how many of those apply prior authorization (PA), step therapy (ST) or a quantity limit (QL). Many plans share one formulary, so plan counts in a county will differ.
How to read drug coverage
Tier is the cost-sharing tier the plan assigned the drug in its CMS formulary filing; lower tiers usually cost less. PA = prior authorization, ST = step therapy (try another drug first), QL = quantity limit. Not on formulary means the plan did not list this exact form; the plan may cover another strength or a formulary exception may be possible. Cost sharing is the plan's initial-coverage amount for the tier as filed with CMS; the deductible, the $2,100 annual out-of-pocket cap, the $35 insulin cap and negotiated prices for selected drugs can change what you actually pay. Formularies change during the year; the plan's formulary document and Medicare.gov govern.
What the star rating under each Medicare Advantage plan means
What the star rating means. CMS rates every Medicare Advantage contract (the "H" number in the plan ID — all plans under it share the rating) on a 1-to-5 scale each October, from about 40 measures of care quality, member experience, complaints and appeals, customer service and, for plans with drug coverage, drug safety and pricing. The 2026 rating is largely based on performance measured in 2024.
5 Excellent4 Above average3 Average2 Below average1 Poor
Not rated means CMS published no overall rating — usually a contract too new to be measured or with too few members ("not enough data"); it is not a low score. A 5-star contract can be joined outside the normal enrollment windows (the 5-star Special Enrollment Period, Dec 8 – Nov 30). Medicare.gov flags contracts rated below 3 stars for three years running as low-performing. Stars describe the contract's past performance as CMS measured it; they are not a recommendation, and they do not tell you whether a plan's network, drugs or costs fit you.