Somatropin (Genotropin, Humatrope, Norditropin) — 2026 Medicare Part D coverage
somatropin — sold as Genotropin, Humatrope, Norditropin, Omnitrope, Serostim, Zomacton: 26 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 somatropin?
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 |
|---|---|---|---|---|---|
| Omnitrope 5 MG in 1.5 ML Cartridge brand · RxCUI 864110 | 158 (48%) | 5 | 158 | 0 | 0 |
| Omnitrope 10 MG in 1.5 ML Cartridge brand · RxCUI 854302 | 156 (48%) | 5 | 156 | 0 | 0 |
| Omnitrope 5 MG/ML Injectable Solution brand · RxCUI 645884 | 152 (46%) | 5 | 152 | 0 | 0 |
| Genotropin 12 MG in 1 ML Cartridge brand · RxCUI 996559 | 124 (38%) | 5 | 124 | 0 | 0 |
| Genotropin 5 MG in 1 ML Cartridge brand · RxCUI 763489 | 124 (38%) | 5 | 124 | 0 | 0 |
| Norditropin 10 MG in 1.5 ML Pen Injector brand · RxCUI 847348 | 123 (38%) | 5 | 123 | 0 | 0 |
| Norditropin 15 MG in 1.5 ML Pen Injector brand · RxCUI 847245 | 123 (38%) | 5 | 123 | 0 | 0 |
| Norditropin 5 MG in 1.5 ML Pen Injector brand · RxCUI 847247 | 123 (38%) | 5 | 123 | 0 | 0 |
| Genotropin 0.2 MG in 0.25 ML Prefilled Syringe brand · RxCUI 762833 | 122 (37%) | 4 | 122 | 0 | 0 |
| Genotropin 0.4 MG in 0.25 ML Prefilled Syringe brand · RxCUI 762836 | 122 (37%) | 5 | 122 | 0 | 0 |
| Genotropin 0.6 MG in 0.25 ML Prefilled Syringe brand · RxCUI 762839 | 122 (37%) | 5 | 122 | 0 | 0 |
| Genotropin 0.8 MG in 0.25 ML Prefilled Syringe brand · RxCUI 762843 | 122 (37%) | 5 | 122 | 0 | 0 |
| Genotropin 1 MG in 0.25 ML Prefilled Syringe brand · RxCUI 762875 | 122 (37%) | 5 | 122 | 0 | 0 |
| Genotropin 1.2 MG in 0.25 ML Prefilled Syringe brand · RxCUI 762849 | 122 (37%) | 5 | 122 | 0 | 0 |
| Genotropin 1.4 MG in 0.25 ML Prefilled Syringe brand · RxCUI 762852 | 122 (37%) | 5 | 122 | 0 | 0 |
| Genotropin 1.6 MG in 0.25 ML Prefilled Syringe brand · RxCUI 762859 | 122 (37%) | 5 | 122 | 0 | 0 |
| Genotropin 1.8 MG in 0.25 ML Prefilled Syringe brand · RxCUI 762868 | 122 (37%) | 5 | 122 | 0 | 0 |
| Genotropin 2 MG in 0.25 ML Prefilled Syringe brand · RxCUI 762897 | 122 (37%) | 5 | 122 | 0 | 0 |
| Serostim 5 MG Injection brand · RxCUI 751568 | 78 (24%) | 5 | 78 | 0 | 0 |
| Serostim 6 MG Injection brand · RxCUI 751570 | 78 (24%) | 5 | 78 | 0 | 0 |
| Serostim 8 MG/ML Injectable Solution brand · RxCUI 751566 | 78 (24%) | 5 | 78 | 0 | 0 |
| Humatrope 12 MG Cartridge brand · RxCUI 582971 | 15 (5%) | 5 | 15 | 0 | 0 |
| Humatrope 24 MG Cartridge brand · RxCUI 582976 | 15 (5%) | 5 | 15 | 0 | 0 |
| Humatrope 6 MG Cartridge brand · RxCUI 729234 | 15 (5%) | 5 | 15 | 0 | 0 |
| ZOMACTON 10 MG/ML Injectable Solution brand · RxCUI 1648160 | 5 (2%) | 4 | 5 | 0 | 0 |
| ZOMACTON 5 MG/ML Injectable Solution brand · RxCUI 1648162 | 5 (2%) | 4 | 5 | 0 | 0 |
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.