Drug Coverage Lookup

See how a prescription drug is placed across Medicare Part D plan formularies — tier, prior authorization, step therapy, and quantity limits, counted per unique plan.

RIVFLOZA (Nedosiran)

On Part D plan formularies — with restrictions

Found on the formularies of 261 of 5499 Medicare Part D plans in this dataset · Tiers 1–5 · prior authorization on 261 plans (100%) · quantity limits on 235 (90%), counting a plan when at least one form/strength carries the flag.

This is dataset-wide formulary placement (data current through 2026-08-31) — check your specific plan for its current coverage and restrictions.

Found on the formularies of 261 of 5499 Medicare Part D plans in this dataset, but prior authorization appears on 261 of those 261 plans (for at least one form/strength). Check your specific plan for its current rules, and learn what your prescriber needs to submit.
How prior authorization works →
PlanTierPrior AuthStep TherapyQty Limit
Mass General Brigham SCO (HMO D-SNP) (H0777-001) (MA) Tier 1 Yes No 1.60 per 28 days
Mass General Brigham One Care (HMO D-SNP) (H1611-001) (MA) Tier 1 Yes No 1.60 per 28 days
Provider Partners Pennsylvania Community Plan (HMO I-SNP) (H4093-004) (PA) Tier 1 Yes No 1 per 28 days
Provider Partners North Carolina Community Plan (HMO I-SNP) (H4439-002) (NC) Tier 1 Yes No 1 per 28 days
Provider Partners Indiana Community Plan (HMO I-SNP) (H4444-002) (IN) Tier 1 Yes No 1 per 28 days
Provider Partners Maryland Community Plan (HMO I-SNP) (H8067-003) (MD) Tier 1 Yes No 1 per 28 days
Provider Partners Missouri Community Plan (HMO I-SNP) (H9191-004) (MO) Tier 1 Yes No 1 per 28 days
Gold Dialysis & Kidney Complete (HMO-POS C-SNP) (H1526-004) (FL) Tier 1 Yes No None
Provider Partners Texas Advantage Plan (HMO I-SNP) (H4054-001) (TX) Tier 1 Yes No 1 per 28 days
Provider Partners Illinois Advantage Plan (HMO I-SNP) (H3800-001) (IL) Tier 1 Yes No 1 per 28 days
Gold Dialysis & Kidney Complete (HMO-POS C-SNP) (H4869-014) (AZ) Tier 1 Yes No None
Provider Partners Maryland Advantage Plan (HMO I-SNP) (H8067-001) (MD) Tier 1 Yes No 1 per 28 days
Provider Partners Maryland Essential Plan (HMO I-SNP) (H8067-004) (MD) Tier 1 Yes No 1 per 28 days
Provider Partners Pennsylvania Advantage Plan (HMO I-SNP) (H4093-001) (PA) Tier 1 Yes No 1 per 28 days
Provider Partners Pennsylvania Essential Plan (HMO I-SNP) (H4093-008) (PA) Tier 1 Yes No 1 per 28 days
Provider Partners North Carolina Advantage Plan (HMO I-SNP) (H4439-001) (NC) Tier 1 Yes No 1 per 28 days
Provider Partners North Carolina Essential Plan (HMO I-SNP) (H4439-003) (NC) Tier 1 Yes No 1 per 28 days
Provider Partners Indiana Advantage Plan (HMO I-SNP) (H4444-001) (IN) Tier 1 Yes No 1 per 28 days
Provider Partners Indiana Essential Plan (HMO I-SNP) (H4444-003) (IN) Tier 1 Yes No 1 per 28 days
Provider Partners Kentucky Advantage Plan (HMO I-SNP) (H7275-001) (KY) Tier 1 Yes No 1 per 28 days
Provider Partners Missouri Advantage Plan (HMO I-SNP) (H9191-001) (MO) Tier 1 Yes No 1 per 28 days
Provider Partners Missouri Essential Plan (HMO I-SNP) (H9191-005) (MO) Tier 1 Yes No 1 per 28 days
CalOptima Health OneCare Complete (HMO D-SNP) (H5433-001) (CA) Tier 2 Yes No 1 per 28 days
VNS Health Total (HMO D-SNP) (H5549-003) (NY) Tier 4 Yes No None
PHP (HMO C-SNP) (H5852-001) (CA) Tier 4 Yes No None

One row per plan — showing 25 of 261 plans; a Yes means the flag applies to at least one form/strength on that plan.

For benefits professionals
Plan sponsors and advisors: formulary-placement and utilization analysis across plans.
For benefits teams: plan formulary analysis →

Source: CMS Monthly Prescription Drug Plan Formulary and Pharmacy Network Information — data current through 2026-08-31 (CMS release 2026-08-26, refreshed monthly). Dataset-wide plan-year formulary placement, not a guarantee of your individual benefit — confirm with your plan or pharmacist.

Data: CMS Monthly Part D formulary files · FDA/RxNorm drug identity · CMS NADAC pricing — CMS Part D formulary data current through 2026-08-31 · source

Machine access — this tool is available as structured data for AI assistants and agents:
GET https://insurewith.ai/tools/drug-coverage/data.json?drug=nedosiran
InsureWith Assistant
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