Medicare Part D coverage · oxacillin · RxCUI 312127

oxacillin 100 MG/ML Injectable Solution

Per the CMS 2026 Part D formulary file, oxacillin 100 MG/ML Injectable Solution is covered by 4,001 Medicare Part D plans (79.2% of enrollable products), averaging Tier 2.9, with prior authorization required on 14.4% of covering formularies.

79.2%
Plan coverage
4,001
Plans covering
T2.9
Avg tier
14.4%
Prior auth required

Verify with CMS →

Important: Drug coverage and costs vary by plan and location. Verify coverage directly with your Medicare plan before filling a prescription. This is informational data only and should not replace advice from your healthcare provider or pharmacist.

What the CMS Formulary Data Shows for oxacillin 100 MG/ML Injectable Solution

Per the CMS 2026 Part D formulary file, oxacillin 100 MG/ML Injectable Solution (RxNorm concept RXCUI 312127, generic name oxacillin) appears on 194 distinct formulary files spanning 4,001 Medicare Part D plan offerings - 79.2% of enrollable Part D products, mid-range placement; shopping across contracts changes access. Tier placement ranges from Tier 1 to Tier 6, with a cross-plan average of Tier 2.9.

Real-world access to oxacillin 100 MG/ML Injectable Solution depends on utilization management as much as tier placement: 14.4% of covering formularies require prior authorization. 0% require step therapy. 0% apply quantity limits.

Historical spending context from the CMS Medicare Part D Drug Spending Dashboard shows 12 Part D beneficiaries filled oxacillin 100 MG/ML Injectable Solution in 2023, with total plan-and-beneficiary spending of $38,076 and an average per-beneficiary annual cost of $3,172.97. The plan-by-plan detail below lists exactly which PDP and MA-PD contracts carry oxacillin 100 MG/ML Injectable Solution today.

Coverage Details

Formularies covering
194
Plans covering
4,001
Coverage rate
79.2%
Tier range
Tier 1 – Tier 6
Average tier
Tier 3, Preferred Brand

Restrictions

Prior authorization required
14.4% of formularies
Step therapy required
0% of formularies
Quantity limits
0% of formularies

2023 Medicare Spending

Beneficiaries
12
Total spending
$38,076
Avg per beneficiary
$3,172.97

Tier Distribution Across Plans

100 plans
Tier 1, Preferred Generic

Medicare Advantage Plans (MA-PD) Covering oxacillin 100 MG/ML Injectable Solution

100 Medicare Advantage plans with Part D drug coverage include this drug.

Plan Insurer Tier PA Premium States
Sentara Community Complete Select (HMO D-SNP) Sentara Health Plans T1 No $0 VA
Sentara Community Complete (HMO D-SNP) Sentara Health Plans T1 No $0 VA
Florida Complete Care-Duals VIP (HMO-POS D-SNP) Hpmp OF Florida, Inc. T1 No $0 FL
ElderServe MAP (HMO D-SNP) Elderserve Health, Inc. T1 Yes $0 NY
Cooperative Advantage (HMO D-SNP) Group Health Cooperative OF EAU Claire T1 Yes $0 WI
Longevity Health Plan (PPO I-SNP) Longevity Health Plan OF NEW Jersey Insurance Comp T1 Yes $0 NJ
Mercy Care Advantage (HMO D-SNP) Mercy Care T1 No $0 AZ
Mercy Care Advantage (HMO D-SNP) Mercy Care T1 No $0 AZ
Mercy Care Advantage (HMO D-SNP) Mercy Care T1 No $0 AZ
Elderplan Plus Long-Term Care (HMO-POS D-SNP) Elderplan, Inc. T1 No $0 NY
Health Choice Pathway (HMO D-SNP) Health Choice Arizona, Inc. T1 No $0 AZ
Healthfirst CompleteCare (HMO D-SNP) Healthfirst Health Plan, Inc. T1 No $0 NY
IMCare Classic (HMO D-SNP) Itasca Medical Care T1 No $0 MN
Johns Hopkins Advantage MD D-SNP (HMO D-SNP) Hopkins Health Advantage, Inc. T1 No $0 MD
MetroPlus UltraCare (HMO D-SNP) Metroplus Health Plan, Inc. T1 No $0 NY
Upper Peninsula Health Plan MI Coordinated Health (HMO D-SNP) Upper Peninsula Health Plan, LLC T1 Yes $0 MI
CareSource Dual Advantage (HMO D-SNP) Caresource Georgia Co. T1 Yes $0 GA
Senior Whole Health SCO (HMO D-SNP) Senior Whole Health, LLC T1 No $0 MA
Senior Whole Health SCO NHC (HMO D-SNP) Senior Whole Health, LLC T1 No $0 MA
Molina One Care (HMO D-SNP) Senior Whole Health, LLC T1 No $0 MA
Show the next 30 plans
HAP CareSource MI Coordinated Health (HMO D-SNP) HAP Caresource T1 Yes $0 MI
PruittHealth Premier D-SNP (HMO D-SNP) Pruitthealth Premier, Inc. T1 No $0 GA
Simpra Advantage Dual Care (PPO D-SNP) Simpra Advantage, Inc. T1 No $0 AL
CareAdvantage (HMO D-SNP) SAN Mateo Health Commission T1 No $0 CA
NaviCare (HMO D-SNP) Fallon Community Health Plan T1 No $0 MA
CCA One Care (HMO D-SNP) Commonwealth Care Alliance, Inc. T1 No $0 MA
CCA Senior Care Options (HMO D-SNP) Commonwealth Care Alliance, Inc. T1 No $0 MA
Abilis Health Community (HMO I-SNP) Signature Advantage, LLC T1 No $0 KY, TN
Arkansas Integrated Providers (AIP) Dual Advantage (HMO D-SNP) Arkansas Superior Select, Inc. T1 No $0 AR
Platino Blindao (HMO D-SNP) Triple S Advantage, Inc. T1 Yes $0 PR
Platino Enlace (HMO D-SNP) Triple S Advantage, Inc. T1 Yes $0 PR
Platino Advance (HMO D-snp) Triple S Advantage, Inc. T1 Yes $0 PR
Platino Plus (HMO D-snp) Triple S Advantage, Inc. T1 Yes $0 PR
CalOptima Health OneCare Complete (HMO D-SNP) Orange County Health Authority T1 No $0 CA
Mass General Brigham SCO (HMO D-SNP) Mass General Brigham Health Plan, Inc T1 No $0 MA
Mass General Brigham One Care (HMO D-SNP) Mass General Brigham Health Plan, Inc T1 No $0 MA
Highmark Wholecare Medicare Assured Diamond (HMO D-SNP) Gateway Health Plan, Inc. T1 No $0 PA
Highmark Wholecare Medicare Assured Diamond (HMO D-SNP) Gateway Health Plan, Inc. T1 No $0 PA
Highmark Health Options Duals (HMO D-SNP) Highmark Health Options West Virginia Inc. T1 No $0 WV
Highmark Health Options Duals (HMO D-SNP) Highmark Bcbsd, Inc. T1 No $0 DE
Tufts Health One Care (HMO D-SNP) Tufts Health Public Plans, Inc. T1 No $0 MA
Tufts Health One Care CW (HMO D-SNP) Tufts Health Public Plans, Inc. T1 No $0 MA
Tufts Health Plan Senior Care Options (HMO D-SNP) Tufts Associated Health Maintenance Organization T1 No $0 MA
Tufts Health Plan Senior Care Options CW (HMO D-SNP) Tufts Associated Health Maintenance Organization T1 No $0 MA
Florida Complete Care (HMO I-SNP) Hpmp OF Florida, Inc. T1 No $4.80 FL
Florida Complete Care- In The Community (HMO-POS I-SNP) Hpmp OF Florida, Inc. T1 No $4.80 FL
Longevity Health Plan (HMO I-SNP) Longevity Health Plan OF Florida, Inc. T1 Yes $4.80 FL
Senior Care (HMO I-SNP) Align Senior Care Florida, Inc. T1 No $4.80 FL
ProCare Advantage (HMO-POS I-SNP) Procare Advantage, LLC T1 No $4.80 TX
ProCare Advantage - Kidney Care (HMO-POS C-SNP) Procare Advantage, LLC T1 No $4.80 TX

Showing top 50 of 100 plans.

Frequently Asked Questions

Is oxacillin 100 MG/ML Injectable Solution covered by Medicare Part D?

Yes, oxacillin 100 MG/ML Injectable Solution is covered by 4,001 Medicare Part D plans (79.2% of all Part D formularies).

What tier is oxacillin 100 MG/ML Injectable Solution on Medicare Part D plans?

oxacillin 100 MG/ML Injectable Solution averages Tier 2.9 across Part D plans, ranging from Tier 1 to Tier 6.

Does oxacillin 100 MG/ML Injectable Solution require prior authorization?

14.4% of Part D formularies require prior authorization for oxacillin 100 MG/ML Injectable Solution. Step therapy: 0%. Quantity limits: 0%.

How much does Medicare spend on oxacillin 100 MG/ML Injectable Solution?

In 2023, total Medicare Part D spending on oxacillin 100 MG/ML Injectable Solution was $38,076, covering 12 beneficiaries. The average spend per beneficiary was $3,172.97.

Nationwide similar Part D drugs

Data-derived peers across the CMS Part D formulary extract: nearest average tier placement and nearest prior-authorization rate. Not therapeutic alternatives or same-generic strengths.

Data sourced from the Centers for Medicare & Medicaid Services (CMS). See our methodology for details. Retrieved and formatted by PlainMedicare