Medicare drug coverage
Gammaked in Montana: 2027 Part D coverage
No 2027 formulary of the 27 Part D plans offered in Montana lists Gammaked, per the CMS 2027 formulary file (each plan's list of covered drugs). In 2026, 1 of 36 plans here listed it. Nationally, 1,343 of 5,495 plans list it in 2027. Plan counts include both Medicare Advantage plans with drug coverage (18 MA-PD) and stand-alone drug plans (9 PDP).
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Every 2027 plan in Montana
Each Part D plan offered in Montana, with Gammaked'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 |
|---|---|---|---|---|---|---|
| UHC Dual Complete MT-S001 (PPO D-SNP) | H2001-041-000 | MA-PD (PPO D-SNP) | Not listed | Not listed | Not listed | Not listed either year |
| HumanaChoice H5216-048 (PPO) | H5216-048-000 | MA-PD (PPO) | Not listed | Not listed | Not listed | Not listed either year |
| HumanaChoice H5216-089 (PPO) | H5216-089-000 | MA-PD (PPO) | Not listed | Not listed | Not listed | Not listed either year |
| HumanaChoice H5216-457 (PPO) | H5216-457-001 | MA-PD (PPO) | Not listed | Not listed | Not listed | Not listed either year |
| HumanaChoice H5216-457 (PPO) | H5216-457-002 | MA-PD (PPO) | Not listed | Not listed | Not listed | Not listed either year |
| UHC MedicareDirect PF-0001 (PFFS) | H5435-024-000 | MA-PD (PFFS) | Not listed | Not listed | Not listed | Not listed either year |
| HumanaChoice H5525-054 (PPO) | H5525-054-000 | MA-PD (PPO) | Not listed | Not listed | Not listed | Not listed either year |
| Humana Gold Plus H6622-007 (HMO) | H6622-007-000 | MA-PD (HMO) | Not listed | Not listed | Not listed | Not listed either year |
| Humana Gold Plus SNP-DE H6622-008 (HMO D-SNP) | H6622-008-000 | MA-PD (HMO D-SNP) | Not listed | Not listed | Not listed | Not listed either year |
| Humana Total Complete (HMO) | H6622-097-000 | MA-PD (HMO) | Not listed | Not listed | Not listed | Not listed either year |
| Humana Essentials Plus Giveback (PPO) | H7617-024-000 | MA-PD (PPO) | Not listed | Not listed | Not listed | Not listed either year |
| Humana Full Access (PPO) | H7617-026-000 | MA-PD (PPO) | Not listed | Not listed | Not listed | Not listed either year |
| Humana Value Choice (PPO) | H7617-030-000 | MA-PD (PPO) | Not listed | Not listed | Not listed | Not listed either year |
| HumanaChoice SNP-DE H7617-036 (PPO D-SNP) | H7617-036-000 | MA-PD (PPO D-SNP) | Not listed | Not listed | Not listed | Not listed either year |
| Humana Dual QMB Only (PPO D-SNP) | H7617-037-000 | MA-PD (PPO D-SNP) | Not listed | Not listed | Not listed | Not listed either year |
| Humana Gold Choice H8145-006 (PFFS) | H8145-006-000 | MA-PD (PFFS) | Not listed | Not listed | Not listed | Not listed either year |
| True West Rx 1 (PPO) | H8267-001-000 | MA-PD (PPO) | New plan ID | Not listed | Not listed | New plan ID in 2027 |
| True West Rx 2 (PPO) | H8267-002-000 | MA-PD (PPO) | New plan ID | Not listed | Not listed | New plan ID in 2027 |
| Wellcare Classic (PDP) | S4802-089-000 | PDP | Not listed | Not listed | Not listed | Not listed either year |
| Wellcare Value Script (PDP) | S4802-158-000 | PDP | Not listed | Not listed | Not listed | Not listed either year |
| HealthSpring Assurance Rx (PDP) | S5715-043-000 | PDP | New plan ID | Not listed | Not listed | New plan ID in 2027 |
| MedicareBlue Rx Standard (PDP) | S5743-001-000 | PDP | Not listed | Not listed | Not listed | Not listed either year |
| Humana Basic Rx Plan (PDP) | S5884-145-000 | PDP | Not listed | Not listed | Not listed | Not listed either year |
| Humana Premier Rx Plan (PDP) | S5884-171-000 | PDP | Not listed | Not listed | Not listed | Not listed either year |
| Humana Value Rx Plan (PDP) | S5884-204-000 | PDP | Not listed | Not listed | Not listed | Not listed either year |
Data only, not plan advice. Confirm on Medicare.gov Plan Finder or 1-800-MEDICARE.
Montana compared with the nation
No Part D plan offered in Montana lists Gammaked on its 2027 formulary, so all 27 leave it off. Nationally, 1,343 of 5,495 plans list it, and 98% of all plans leave it off or restrict it. Gammaked is on no 2027 formulary in 6 of 51 states, Montana among them. A plan offered in several states counts in each.
2027 compared with 2026
| Measure | 2026 | 2027 | Change |
|---|---|---|---|
| Part D plans in the file | 36 | 27 | -9 |
| Plans that list it | 1 (3%) | 0 (0%) | -3 points |
| Prior authorization (of plans that list it) | 1 (100%) | 0 | no plans list it in 2027 |
| Step therapy (of plans that list it) | 0 (0%) | 0 | no plans list it in 2027 |
| Quantity limit (of plans that list it) | 0 (0%) | 0 | no plans list it in 2027 |
| Any of the three (of plans that list it) | 1 (100%) | 0 | no plans list it in 2027 |
| Not listed or restricted (of all plans) | 36 (100%) | 27 (100%) | no change |
Formulary tier
| Tier | 2026 plans | 2027 plans |
|---|---|---|
| Tier 5 | 1 (100%) | 0 |
Plan by plan, 2026 to 2027
| Plan by plan | Plans |
|---|---|
| Same plan ID in both years | 24 |
| 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 | 3 |
| 2026 plan IDs not in the 2027 file | 12 |
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 Gammaked both years.
Plans that list Gammaked fell from 1 to 0, but none of the 24 plans offered in both years stopped listing it. Listings with prior authorization, step therapy, or a quantity limit fell from 1 to 0, but none of the 24 plans offered in both years removed any of the three from Gammaked. The fall comes from the plan list. 12 plan IDs offered here in 2026 are not in the 2027 file, and 1 of them listed it with a limit. 3 plan IDs are new in 2027, and none of them list it.
Gammaked in other states
- Alabama100% restrict or leave off, no changeAL
- Alaska100% restrict or leave off, no changeAK
- Arizona100% restrict or leave off, no changeAZ
- Arkansas100% restrict or leave off, no changeAR
- California88% restrict or leave off, no changeCA
- Colorado90% restrict or leave off, +3 pointsCO
- Connecticut100% restrict or leave off, no changeCT
- Delaware100% restrict or leave off, no changeDE
- District of Columbia86% restrict or leave off, -2 pointsDC
- Florida100% restrict or leave off, no changeFL
- Georgia95% restrict or leave off, no changeGA
- Hawaii88% restrict or leave off, no changeHI
- Idaho100% restrict or leave off, no changeID
- Illinois100% restrict or leave off, no changeIL
- Indiana100% restrict or leave off, no changeIN
- Iowa100% restrict or leave off, no changeIA
- Kansas100% restrict or leave off, no changeKS
- Kentucky100% restrict or leave off, no changeKY
- Louisiana100% restrict or leave off, no changeLA
- Maine100% restrict or leave off, no changeME
- Maryland80% restrict or leave off, -4 pointsMD
- Massachusetts100% restrict or leave off, no changeMA
- Michigan100% restrict or leave off, no changeMI
- Minnesota100% restrict or leave off, no changeMN
- Mississippi100% restrict or leave off, no changeMS
- Missouri100% restrict or leave off, no changeMO
- Nebraska100% restrict or leave off, no changeNE
- Nevada97% restrict or leave off, -3 pointsNV
- New Hampshire100% restrict or leave off, no changeNH
- New Jersey100% restrict or leave off, no changeNJ
- New Mexico100% restrict or leave off, no changeNM
- New York100% restrict or leave off, no changeNY
- North Carolina100% restrict or leave off, no changeNC
- North Dakota100% restrict or leave off, no changeND
- Ohio100% restrict or leave off, no changeOH
- Oklahoma100% restrict or leave off, no changeOK
- Oregon96% restrict or leave off, no changeOR
- Pennsylvania100% restrict or leave off, no changePA
- Rhode Island100% restrict or leave off, no changeRI
- South Carolina100% restrict or leave off, no changeSC
- South Dakota100% restrict or leave off, no changeSD
- Tennessee100% restrict or leave off, no changeTN
- Texas100% restrict or leave off, no changeTX
- Utah100% restrict or leave off, no changeUT
- Vermont100% restrict or leave off, no changeVT
- Virginia96% restrict or leave off, no changeVA
- Washington86% restrict or leave off, +1 pointWA
- West Virginia100% restrict or leave off, no changeWV
- Wisconsin100% restrict or leave off, no changeWI
- Wyoming100% restrict or leave off, no changeWY
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