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Ustekinumab (Imuldosa, Otulfi, Pyzchiva) — 2026 Medicare Part D coverage

Contract year 2026 · CMS monthly formulary file · drug names from RxNorm · data updated October 01, 2026

ustekinumab — sold as Imuldosa, Otulfi, Pyzchiva, Selarsdi, Starjemza, Stelara, Steqeyma, Wezlana, Yesintek: 38 forms appear in Medicare Part D formularies for 2026. This page reports what plans filed with CMS; it does not recommend a plan.

70%of 328 formularies list the most-covered form
Tier 5most common tier
69%report prior authorization (max across forms)
53%report a quantity limit

Medicare-negotiated price for Stelara in 2026

Stelara is one of the first 10 drugs whose price Medicare negotiated with the manufacturer under the Inflation Reduction Act. From January 1, 2026, Part D plans and pharmacies pay the negotiated price.

$4,695.00negotiated price, 30-day supply (2026)
$13,836.00list price, 30-day supply (2023)
66%lower than the 2023 list price

Commonly used for psoriasis, psoriatic arthritis, Crohn's disease, ulcerative colitis. The negotiated price is what the plan and pharmacy pay, not your copay. What you pay still depends on your plan: a flat copay usually stays the same, while coinsurance (a percentage) is calculated on the lower price, and the Part D deductible and the annual out-of-pocket cap still apply. It covers the brand-name drug named here, not generics or biosimilars. Source: CMS, Medicare Drug Price Negotiation Program: Negotiated Prices for 2026.

Which plans in your county cover ustekinumab?

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.

Forms and strengths in 2026 formularies

FormFormularies listing itMost common tierPASTQL
Yesintek 90 MG in 1 ML Prefilled Syringe
brand · RxCUI 2705600
231 (70%)52270175
Yesintek 45 MG in 0.5 ML Injection
brand · RxCUI 2705603
201 (61%)31970145
Yesintek 45 MG in 0.5 ML Prefilled Syringe
brand · RxCUI 2705597
201 (61%)31970146
Stelara 45 MG in 0.5 mL Injection
brand · RxCUI 1654079
186 (57%)51841172
ustekinumab 45 MG in 0.5 mL Injection
generic · RxCUI 1654077
186 (57%)51831171
ustekinumab 45 MG in 0.5 mL Prefilled Syringe
generic · RxCUI 853350
162 (49%)51591147
Stelara 45 MG in 0.5 mL Prefilled Syringe
brand · RxCUI 853354
161 (49%)51591148
ustekinumab 90 MG in 1 ML Prefilled Syringe
generic · RxCUI 853355
161 (49%)51581147
Stelara 90 MG in 1 ML Prefilled Syringe
brand · RxCUI 853356
160 (49%)51581148
SteQeyma 90 MG in 1 ML Prefilled Syringe
brand · RxCUI 2700412
136 (41%)51360133
SteQeyma 45 MG in 0.5 ML Prefilled Syringe
brand · RxCUI 2700409
135 (41%)41350133
Pyzchiva 45 MG in 0.5 ML Injection
brand · RxCUI 2713887
129 (39%)31290129
Pyzchiva 45 MG in 0.5 ML Prefilled Syringe
brand · RxCUI 2705573
128 (39%)31280128
Pyzchiva 90 MG in 1 ML Prefilled Syringe
brand · RxCUI 2705576
128 (39%)51280128
Selarsdi 90 MG/ML in 1 ML Prefilled Syringe
brand · RxCUI 2705401
119 (36%)5115064
Selarsdi 45 MG in 0.5 ML Prefilled Syringe
brand · RxCUI 2705398
118 (36%)3114064
Selarsdi 90 MG/ML in 0.5 ML Injection
brand · RxCUI 2726118
117 (36%)3114064
SteQeyma 45 MG in 0.5 ML Injection
brand · RxCUI 2740800
106 (32%)31060104
ustekinumab-aekn 45 MG in 0.5 ML Prefilled Syringe
generic · RxCUI 2705393
94 (29%)494092
ustekinumab-aekn 90 MG in 1 ML Prefilled Syringe
generic · RxCUI 2705400
94 (29%)594092
ustekinumab-aauz 45 MG in 0.5 ML Prefilled Syringe
generic · RxCUI 2702615
63 (19%)363013
ustekinumab-aauz 90 MG in 1 ML Prefilled Syringe
generic · RxCUI 2702606
63 (19%)363013
Pyzchiva 45 MG in 0.5 ML Auto-Injector
brand · RxCUI 2720516
60 (18%)360060
Pyzchiva 90 MG in 1 ML Auto-Injector
brand · RxCUI 2721431
60 (18%)560060
Starjemza 45 MG in 0.5 ML Injection
brand · RxCUI 2725106
54 (16%)451047
Starjemza 45 MG in 0.5 ML Prefilled Syringe
brand · RxCUI 2725094
54 (16%)451048
Starjemza 90 MG in 1 ML Prefilled Syringe
brand · RxCUI 2725100
54 (16%)451048
Otulfi 45 MG in 0.5 ML Injection
brand · RxCUI 2724431
28 (9%)328028
Otulfi 45 MG in 0.5 ML Prefilled Syringe
brand · RxCUI 2702616
28 (9%)328028
Otulfi 90 MG in 1 ML Prefilled Syringe
brand · RxCUI 2702613
28 (9%)528028
WEZLANA 45 MG in 0.5 ML Injection
brand · RxCUI 2700682
25 (8%)525025
WEZLANA 45 MG in 0.5 ML Prefilled Syringe
brand · RxCUI 2700689
25 (8%)525025
WEZLANA 90 MG in 1 ML Prefilled Syringe
brand · RxCUI 2700692
25 (8%)525025
IMULDOSA 45 MG in 0.5 ML Prefilled Syringe
brand · RxCUI 2717083
12 (4%)312011
IMULDOSA 90 MG in 1 ML Prefilled Syringe
brand · RxCUI 2717086
12 (4%)312011
ustekinumab-ttwe 45 MG in 0.5 ML Prefilled Syringe
generic · RxCUI 2705568
8 (2%)3707
ustekinumab-ttwe 90 MG in 1 ML Prefilled Syringe
generic · RxCUI 2705575
8 (2%)5707
ustekinumab-ttwe 45 MG in 0.5 ML Injection
generic · RxCUI 2713885
7 (2%)3707

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.