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.

Isturisa (Osilodrostat)

On Part D plan formularies — with restrictions

Found on the formularies of 229 of 5499 Medicare Part D plans in this dataset · Tiers 1–5 · prior authorization on 229 plans (100%) · quantity limits on 193 (84%), 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 229 of 5499 Medicare Part D plans in this dataset, but prior authorization appears on 229 of those 229 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 None
Mass General Brigham One Care (HMO D-SNP) (H1611-001) (MA) Tier 1 Yes No None
Provider Partners Pennsylvania Community Plan (HMO I-SNP) (H4093-004) (PA) Tier 1 Yes No 360 per 30 days
Provider Partners North Carolina Community Plan (HMO I-SNP) (H4439-002) (NC) Tier 1 Yes No 360 per 30 days
Provider Partners Indiana Community Plan (HMO I-SNP) (H4444-002) (IN) Tier 1 Yes No 360 per 30 days
Platino Blindao (HMO D-SNP) (H5774-028) (PR) Tier 1 Yes No 360.00 per 30 days
Platino Enlace (HMO D-SNP) (H5774-035) (PR) Tier 1 Yes No 360.00 per 30 days
PLATINO ADVANCE (HMO D-SNP) (H5774-041) (segment 1) (PR) Tier 1 Yes No 360.00 per 30 days
PLATINO ADVANCE (HMO D-SNP) (H5774-041) (segment 2) (PR) Tier 1 Yes No 360.00 per 30 days
PLATINO ADVANCE (HMO D-SNP) (H5774-041) (segment 3) (PR) Tier 1 Yes No 360.00 per 30 days
PLATINO ADVANCE (HMO D-SNP) (H5774-041) (segment 4) (PR) Tier 1 Yes No 360.00 per 30 days
PLATINO ADVANCE (HMO D-SNP) (H5774-041) (segment 5) (PR) Tier 1 Yes No 360.00 per 30 days
PLATINO PLUS (HMO D-SNP) (H5774-043) (segment 1) (PR) Tier 1 Yes No 360.00 per 30 days
PLATINO PLUS (HMO D-SNP) (H5774-043) (segment 2) (PR) Tier 1 Yes No 360.00 per 30 days
PLATINO PLUS (HMO D-SNP) (H5774-043) (segment 3) (PR) Tier 1 Yes No 360.00 per 30 days
PLATINO PLUS (HMO D-SNP) (H5774-043) (segment 4) (PR) Tier 1 Yes No 360.00 per 30 days
PLATINO PLUS (HMO D-SNP) (H5774-043) (segment 5) (PR) Tier 1 Yes No 360.00 per 30 days
Provider Partners Maryland Community Plan (HMO I-SNP) (H8067-003) (MD) Tier 1 Yes No 360 per 30 days
NaviCare (HMO D-SNP) (H8928-001) (MA) Tier 1 Yes No 360 per 30 days
Provider Partners Missouri Community Plan (HMO I-SNP) (H9191-004) (MO) Tier 1 Yes No 360 per 30 days
Provider Partners Texas Advantage Plan (HMO I-SNP) (H4054-001) (TX) Tier 1 Yes No 360 per 30 days
Provider Partners Illinois Advantage Plan (HMO I-SNP) (H3800-001) (IL) Tier 1 Yes No 360 per 30 days
Provider Partners Maryland Advantage Plan (HMO I-SNP) (H8067-001) (MD) Tier 1 Yes No 360 per 30 days
Provider Partners Maryland Essential Plan (HMO I-SNP) (H8067-004) (MD) Tier 1 Yes No 360 per 30 days
Provider Partners Pennsylvania Advantage Plan (HMO I-SNP) (H4093-001) (PA) Tier 1 Yes No 360 per 30 days

One row per plan — showing 25 of 229 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=osilodrostat
InsureWith Assistant
Hi! I can help you understand drug coverage, formulary tiers, prior authorization, and more. What would you like to know?