Medicare drug coverage
Odefsey in South Dakota: 2027 Part D coverage
30 of 30 Part D plans offered in South Dakota (100%) list Odefsey on their 2027 formulary, the plan's list of covered drugs (the same share as 2026). 43% of those require prior authorization, step therapy, or a quantity limit. Plan counts include both Medicare Advantage plans with drug coverage (21 MA-PD) and stand-alone drug plans (9 PDP).
License: a US government work, in the public domain (Public Domain Mark 1.0).
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Every 2027 plan in South Dakota
Each Part D plan offered in South Dakota, with Odefsey's 2026 and 2027 tier and its 2027 limits. A tier is the cost level a plan puts a drug on; a lower tier usually costs less. Enter a ZIP to see only the plans offered in that county.
PA is prior authorization (the plan must approve it first), ST is step therapy (try another drug first), and QL is a quantity limit. D-SNP, C-SNP, and I-SNP are Special Needs Plans: for people with both Medicare and Medicaid, with certain chronic conditions, or who live in a nursing home or need that level of care. Plans are listed by plan ID.
| Plan | Plan ID | Type | 2026 tier | 2027 tier | 2027 PA / ST / QL | Change |
|---|---|---|---|---|---|---|
| Aetna Medicare Dual Classic (PPO D-SNP) | H1608-062-000 | MA-PD (PPO D-SNP) | Tier 5 | Tier 5 | None | No change |
| Aetna Medicare Enhanced Classic Extra (PPO) | H1608-119-000 | MA-PD (PPO) | Tier 5 | Tier 5 | None | No change |
| Aetna Medicare Signature Classic (PPO) | H1608-120-000 | MA-PD (PPO) | Tier 5 | Tier 5 | None | No change |
| Aetna Medicare Full Dual Classic (PPO D-SNP) | H1608-121-000 | MA-PD (PPO D-SNP) | Tier 5 | Tier 5 | None | No change |
| Great Plains Medicare Advantage (HMO I-SNP) | H1787-001-000 | MA-PD (HMO I-SNP) | Tier 5 | Tier 5 | QL | No change |
| Great Plain Medicare Advantage Gold (HMO I-SNP) | H1787-002-000 | MA-PD (HMO I-SNP) | Tier 5 | Tier 5 | QL | No change |
| UHC Dual Complete SD-Q1 (PPO D-SNP) | H2001-046-000 | MA-PD (PPO D-SNP) | Tier 5 | Tier 5 | QL | No change |
| UHC Dual Complete SD-S2 (PPO D-SNP) | H2001-077-000 | MA-PD (PPO D-SNP) | Tier 5 | Tier 5 | QL | No change |
| Medica Prime Solution Thrift w/Rx (Cost) | H2450-007-000 | MA-PD (Cost) | Tier 5 | Tier 5 | None | No change |
| Medica Prime Solution Standard w/Rx (Cost) | H2450-049-000 | MA-PD (Cost) | Tier 5 | Tier 5 | None | No change |
| Aetna Medicare Signature (PPO) | H5521-756-000 | MA-PD (PPO) | New plan ID | Tier 5 | None | New plan ID in 2027 |
| Aetna Medicare Enhanced Extra (PPO) | H5521-757-000 | MA-PD (PPO) | New plan ID | Tier 5 | None | New plan ID in 2027 |
| Aetna Medicare Full Dual (PPO D-SNP) | H5521-758-000 | MA-PD (PPO D-SNP) | New plan ID | Tier 5 | None | New plan ID in 2027 |
| Align SecureChoice (PPO) | H8385-005-000 | MA-PD (PPO) | New plan ID | Tier 5 | QL | New plan ID in 2027 |
| Align SecureChoice Gold (PPO) | H8385-006-000 | MA-PD (PPO) | New plan ID | Tier 5 | QL | New plan ID in 2027 |
| Medica Advantage Essential (PPO) | H8889-027-001 | MA-PD (PPO) | New plan ID | Tier 5 | None | New plan ID in 2027 |
| Medica Advantage Essential (PPO) | H8889-027-002 | MA-PD (PPO) | New plan ID | Tier 5 | None | New plan ID in 2027 |
| Medica Advantage Select (PPO) | H8889-028-001 | MA-PD (PPO) | New plan ID | Tier 5 | None | New plan ID in 2027 |
| Medica Advantage Select (PPO) | H8889-028-002 | MA-PD (PPO) | New plan ID | Tier 5 | None | New plan ID in 2027 |
| Medica Advantage Preferred (PPO) | H8889-029-001 | MA-PD (PPO) | New plan ID | Tier 5 | None | New plan ID in 2027 |
| Medica Advantage Preferred (PPO) | H8889-029-002 | MA-PD (PPO) | New plan ID | Tier 5 | None | New plan ID in 2027 |
| Wellcare Classic (PDP) | S4802-089-000 | PDP | Tier 5 | Tier 5 | None | No change |
| Wellcare Value Script (PDP) | S4802-158-000 | PDP | Tier 5 | Tier 5 | None | No change |
| HealthSpring Assurance Rx (PDP) | S5715-043-000 | PDP | New plan ID | Tier 5 | QL | New plan ID in 2027 |
| MedicareBlue Rx Standard (PDP) | S5743-001-000 | PDP | Tier 5 | Tier 5 | QL | No change |
Data only, not plan advice. Confirm on Medicare.gov Plan Finder or 1-800-MEDICARE.
South Dakota compared with the nation
43% of the 30 Part D plans offered in South Dakota leave Odefsey off the 2027 formulary or restrict it, against 56% nationally (13 points lower). South Dakota is tied with 3 other states at 43% of plans restricting or leaving it off. A plan offered in several states counts in each.
2027 compared with 2026
| Measure | 2026 | 2027 | Change |
|---|---|---|---|
| Part D plans in the file | 30 | 30 | no change |
| Plans that list it | 30 (100%) | 30 (100%) | no change |
| Prior authorization (of plans that list it) | 0 (0%) | 0 (0%) | no change |
| Step therapy (of plans that list it) | 0 (0%) | 0 (0%) | no change |
| Quantity limit (of plans that list it) | 14 (47%) | 13 (43%) | -4 points |
| Any of the three (of plans that list it) | 14 (47%) | 13 (43%) | -4 points |
| Not listed or restricted (of all plans) | 14 (47%) | 13 (43%) | -4 points |
Formulary tier
| Tier | 2026 plans | 2027 plans |
|---|---|---|
| Tier 5 | 30 (100%) | 30 (100%) |
Plan by plan, 2026 to 2027
| Plan by plan | Plans |
|---|---|
| Same plan ID in both years | 18 |
| Listed it in 2026, not in 2027 | 0 (0%) |
| Listed it in 2027, not in 2026 | 0 (0%) |
| Moved it to a higher tier | 0 (0%) |
| Moved it to a lower tier | 0 (0%) |
| Added prior authorization | 0 (0%) |
| Added step therapy | 0 (0%) |
| Added a quantity limit | 0 (0%) |
| Added at least one of the three | 0 (0%) |
| Removed at least one of the three | 0 (0%) |
| Plan IDs new in 2027 | 12 |
| 2026 plan IDs not in the 2027 file | 11 |
The CMS summary has no count of tier moves down, so "Moved it to a lower tier" is counted from the plan rows on this page: plans with the same plan ID in both years that list Odefsey both years.
Listings with prior authorization, step therapy, or a quantity limit fell from 14 to 13, but none of the 18 plans offered in both years removed any of the three from Odefsey. The fall comes from the plan list. 11 plan IDs offered here in 2026 are not in the 2027 file, and 11 of them listed it, 4 with a limit. 12 plan IDs are new in 2027, and 12 of them list it, 3 with a limit. 1 plan ID offered here in 2026 is offered only in other states in 2027, and it listed it without a limit.
Same plan ID in both years (18) plus 2026 plan IDs not in the 2027 file (11) add up to 29, not the 30 plans offered in South Dakota in 2026, because some plans are offered in different states in 2026 and 2027. 1 plan ID offered here in 2026 is offered only in other states in 2027, so it counts in neither row.
Odefsey in other states
- Alabama54% restrict or leave off, -8 pointsAL
- Alaska67% restrict or leave off, no changeAK
- Arizona51% restrict or leave off, -5 pointsAZ
- Arkansas53% restrict or leave off, +1 pointAR
- California51% restrict or leave off, +5 pointsCA
- Colorado57% restrict or leave off, -3 pointsCO
- Connecticut43% restrict or leave off, -4 pointsCT
- Delaware58% restrict or leave off, -4 pointsDE
- District of Columbia57% restrict or leave off, -7 pointsDC
- Florida61% restrict or leave off, -4 pointsFL
- Georgia60% restrict or leave off, +1 pointGA
- Hawaii36% restrict or leave off, -4 pointsHI
- Idaho89% restrict or leave off, +9 pointsID
- Illinois47% restrict or leave off, -3 pointsIL
- Indiana61% restrict or leave off, -2 pointsIN
- Iowa58% restrict or leave off, no changeIA
- Kansas54% restrict or leave off, -6 pointsKS
- Kentucky68% restrict or leave off, -2 pointsKY
- Louisiana53% restrict or leave off, -2 pointsLA
- Maine63% restrict or leave off, +4 pointsME
- Maryland39% restrict or leave off, -12 pointsMD
- Massachusetts43% restrict or leave off, -1 pointMA
- Michigan42% restrict or leave off, -3 pointsMI
- Minnesota51% restrict or leave off, -5 pointsMN
- Mississippi58% restrict or leave off, no changeMS
- Missouri48% restrict or leave off, -9 pointsMO
- Montana93% restrict or leave off, +1 pointMT
- Nebraska53% restrict or leave off, -2 pointsNE
- Nevada59% restrict or leave off, -1 pointNV
- New Hampshire68% restrict or leave off, no changeNH
- New Jersey64% restrict or leave off, +3 pointsNJ
- New Mexico78% restrict or leave off, no changeNM
- New York43% restrict or leave off, -7 pointsNY
- North Carolina60% restrict or leave off, -12 pointsNC
- North Dakota58% restrict or leave off, +3 pointsND
- Ohio45% restrict or leave off, +1 pointOH
- Oklahoma67% restrict or leave off, -4 pointsOK
- Oregon39% restrict or leave off, -16 pointsOR
- Pennsylvania65% restrict or leave off, -1 pointPA
- Rhode Island69% restrict or leave off, +1 pointRI
- South Carolina65% restrict or leave off, +2 pointsSC
- Tennessee62% restrict or leave off, -4 pointsTN
- Texas60% restrict or leave off, -4 pointsTX
- Utah70% restrict or leave off, -1 pointUT
- Vermont71% restrict or leave off, +9 pointsVT
- Virginia72% restrict or leave off, -3 pointsVA
- Washington51% restrict or leave off, -10 pointsWA
- West Virginia71% restrict or leave off, -3 pointsWV
- Wisconsin69% restrict or leave off, +1 pointWI
- Wyoming69% restrict or leave off, -5 pointsWY
About this data
A plan here is one Part D plan as the CMS formulary files list it: contract, plan, and segment. That covers Medicare Advantage plans with drug coverage and stand-alone drug plans. A plan lists a drug when its formulary has a row for any RxNorm product of that name. When it has several, the row with the lowest tier is the one counted, and restricted means that row has prior authorization, step therapy, or a quantity limit.
A plan with no row for the drug counts as not listing it. That can be a product the file codes another way, so read a low count as a lookup result, not a coverage decision. A state counts every plan the CMS landscape file offers there. Parent organizations are named as CMS names them. The drug list is the top 200 by total Part D spending.
Source: CMS 2027 Part D formulary file (basic drugs and plan information), as of October 8, 2026. Publisher page
Source: CMS 2026 Part D formulary file (basic drugs and plan information), as of September 30, 2026. Publisher page
Source: CMS CY2027 landscape file (states and parent organizations), as of September 30, 2026. Publisher page
Source: CMS CY2026 landscape file, as of September 25, 2025. Publisher page
Source: CMS Medicare Part D Spending by Drug, 2024 data, as of June 25, 2026. Publisher page
Source: US Census Bureau 2020 ZCTA to county relationship file (ZIP lookup), as of December 9, 2021. Publisher page