Medicare drug coverage

Lantus in Tennessee: 2027 Part D coverage

135 of 157 Part D plans offered in Tennessee (86%) list Lantus on their 2027 formulary, the plan's list of covered drugs (the same share as 2026). 10% of those require prior authorization, step therapy, or a quantity limit. Plan counts include both Medicare Advantage plans with drug coverage (146 MA-PD) and stand-alone drug plans (11 PDP).

License: a US government work, in the public domain (Public Domain Mark 1.0).

For pharmacies and agencies: check a whole drug list against 2027 formularies.

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Every 2027 plan in Tennessee

Each Part D plan offered in Tennessee, with Lantus'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.

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Dosage form

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.

Lantus, 2027 Part D plans, in plan ID order
PlanPlan IDType2026 tier2027 tier2027 PA / ST / QLChange
UHC Dual Complete TN-YL (HMO-POS D-SNP)H0251-004-000MA-PD (HMO-POS D-SNP)Tier 3Tier 3NoneNo change
UHC Dual Complete TN-Y2 (HMO-POS D-SNP)H0251-009-001MA-PD (HMO-POS D-SNP)New plan IDTier 3NoneNew plan ID in 2027
UHC Dual Complete TN-Y2 (HMO-POS D-SNP)H0251-009-002MA-PD (HMO-POS D-SNP)New plan IDTier 3NoneNew plan ID in 2027
UHC Dual Complete TN-Y2 (HMO-POS D-SNP)H0251-009-003MA-PD (HMO-POS D-SNP)New plan IDTier 3NoneNew plan ID in 2027
UHC Dual Complete TN-Q1 (HMO-POS D-SNP)H0251-010-001MA-PD (HMO-POS D-SNP)New plan IDTier 3NoneNew plan ID in 2027
UHC Dual Complete TN-Q1 (HMO-POS D-SNP)H0251-010-002MA-PD (HMO-POS D-SNP)New plan IDTier 3NoneNew plan ID in 2027
UHC Dual Complete TN-Q1 (HMO-POS D-SNP)H0251-010-003MA-PD (HMO-POS D-SNP)New plan IDTier 3NoneNew plan ID in 2027
AARP Medicare Advantage from UHC TN-0002 (PPO)H2001-094-000MA-PD (PPO)Tier 3Tier 3NoneNo change
UHC Medicare Advantage TC-0001 (PPO)H2001-104-000MA-PD (PPO)Tier 3Tier 3NoneNo change
Abilis Health (HMO I-SNP)H2400-001-000MA-PD (HMO I-SNP)Tier 1Tier 1QLNo change
Abilis Health Community (HMO I-SNP)H2400-002-000MA-PD (HMO I-SNP)Tier 1Tier 1QLNo change
Aetna Medicare Value Plus (HMO)H3146-012-000MA-PD (HMO)Tier 3Tier 3NoneNo change
Aetna Medicare Signature (HMO)H3146-051-000MA-PD (HMO)New plan IDTier 3NoneNew plan ID in 2027
Aetna Medicare Signature (HMO)H3146-052-000MA-PD (HMO)New plan IDTier 3NoneNew plan ID in 2027
Aetna Medicare Enhanced (HMO)H3146-058-000MA-PD (HMO)New plan IDTier 3NoneNew plan ID in 2027
Aetna Medicare Enhanced (HMO)H3146-059-000MA-PD (HMO)New plan IDTier 3NoneNew plan ID in 2027
Aetna Medicare Signature (HMO)H3146-060-000MA-PD (HMO)New plan IDTier 3NoneNew plan ID in 2027
BlueCare Plus (HMO D-SNP)H3259-001-000MA-PD (HMO D-SNP)Not listedNot listedNot listedNot listed either year
BlueCare Plus Choice (HMO D-SNP)H3259-002-000MA-PD (HMO D-SNP)Not listedNot listedNot listedNot listed either year
BlueCare Plus Select (HMO D-SNP)H3259-003-000MA-PD (HMO D-SNP)Not listedNot listedNot listedNot listed either year
NHC Advantage (HMO I-SNP)H4172-001-000MA-PD (HMO I-SNP)Tier 1Tier 3NoneTier 1 to 3
Senior Care (HMO I-SNP)H4172-003-000MA-PD (HMO I-SNP)Tier 3Tier 3NoneNo change
Humana Gold Plus SNP-DE H4461-022 (HMO D-SNP)H4461-022-000MA-PD (HMO D-SNP)Tier 3Tier 3NoneNo change
Humana Gold Plus H4461-025 (HMO)H4461-025-000MA-PD (HMO)Tier 3Tier 3NoneNo change
Humana Dual QMB Only (HMO D-SNP)H4461-038-000MA-PD (HMO D-SNP)Tier 3Tier 3NoneNo change

Data only, not plan advice. Confirm on Medicare.gov Plan Finder or 1-800-MEDICARE.

By dosage form

The 2027 formularies list Lantus by dosage form. A plan can cover one form and leave off or restrict another, so each form is counted on its own.

Lantus by dosage form, 2027
Dosage formPlans that list itRestricted (of listing)Most common tier
Injectable solution135 (86%)13 (10%)Tier 3
Pen injector135 (86%)13 (10%)Tier 3

Tennessee compared with the nation

22% of the 157 Part D plans offered in Tennessee leave Lantus off the 2027 formulary or restrict it, against 19% nationally (3 points higher). Tennessee ranks 8 of 51 states from most to least restrictive. A plan offered in several states counts in each.

Lantus in every state and by parent organization

2027 compared with 2026

Lantus Part D coverage, 2026 and 2027
Measure20262027Change
Part D plans in the file136157+21
Plans that list it117 (86%)135 (86%)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)13 (11%)13 (10%)-1 point
Any of the three (of plans that list it)13 (11%)13 (10%)-1 point
Not listed or restricted (of all plans)32 (24%)35 (22%)-2 points

Formulary tier

Lantus formulary tier, 2026 and 2027
Tier2026 plans2027 plans
Tier 14 (3%)3 (2%)
Tier 20 (0%)2 (1%)
Tier 3113 (97%)130 (96%)

Plan by plan, 2026 to 2027

Lantus: plans in both 2026 and 2027
Plan by planPlans
Same plan ID in both years110
Listed it in 2026, not in 20270 (0%)
Listed it in 2027, not in 20260 (0%)
Moved it to a higher tier1 (1%)
Moved it to a lower tier2 (2%)
Added prior authorization0 (0%)
Added step therapy0 (0%)
Added a quantity limit0 (0%)
Added at least one of the three0 (0%)
Removed at least one of the three0 (0%)
Plan IDs new in 202747
2026 plan IDs not in the 2027 file26

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 Lantus both years.

Lantus in other states

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

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