Medicare drug coverage

Humulin R: 2027 tier

Humulin R is tier 5 on the 5,248 plans that cover it in 2027. 5,248 of 5,495 Part D plans (96%) list Humulin R on their 2027 formulary, the plan's list of covered drugs (up 1 point from 2026). 11% of those require prior authorization, step therapy, or a quantity limit. Plan counts include both Medicare Advantage plans with drug coverage (5,172 MA-PD) and stand-alone drug plans (323 PDP).

Newly covered by 1 plan.

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

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2027 compared with 2026

Humulin R is number 169 by total Medicare Part D spending in 2024 ($240 million). Plans that list it most often put it on tier 5 (a tier is the cost level a plan puts a drug on; a lower tier usually costs less). Counts use 4 RxNorm products for this name.

Humulin R Part D coverage, 2026 and 2027
Measure20262027Change
Part D plans in the file5,5185,495-23
Plans that list it5,233 (95%)5,248 (96%)+1 point
Prior authorization (of plans that list it)39 (1%)25 (<1%)no change
Step therapy (of plans that list it)0 (0%)0 (0%)no change
Quantity limit (of plans that list it)635 (12%)558 (11%)-1 point
Any of the three (of plans that list it)674 (13%)583 (11%)-2 points
Left off or restricted (of all plans)959 (17%)830 (15%)-2 points

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

Every 2027 stand-alone drug plan

Each stand-alone Part D plan (PDP) with Humulin R's 2027 tier and limits. CMS files a PDP once per region, so one plan name can have several plan IDs; the row shows the tier and limits most of them use. Medicare Advantage drug plans are local: pick a state for its plan-by-plan table.

Humulin R on every 2027 stand-alone Part D plan
Plan (PDP)Plan IDs2027 tier2027 limits
AARP Medicare Rx Preferred from UHC (PDP)39Tier 3None
AARP Medicare Rx Saver from UHC (PDP)34Tier 3None
Blue Medicare Rx Enhanced (PDP)1Tier 3None
Blue Medicare Rx Standard (PDP)1Tier 3None
Blue MedicareRx Essentials (PDP)1Tier 3QL
Blue MedicareRx Plus (PDP)1Tier 3QL
Blue MedicareRx Premier (PDP)1Tier 5None
Blue MedicareRx Value (PDP)1Tier 3QL
Blue MedicareRx Value Plus (PDP)1Tier 5None
Blue Shield Rx Enhanced (PDP)1Tier 3PA on some strengths
Blue Shield Rx Plus (PDP)1Tier 3PA on some strengths
BlueMedicare Complete Rx (PDP)1Tier 3QL
BlueMedicare Premier Rx (PDP)2Tier 5None (1 of 2 IDs)
BlueMedicare Value Rx (PDP)1Tier 5None
BlueRx Enhanced Plus (PDP)1Tier 3QL
BlueRx Essential (PDP)1Tier 3QL
HealthSpring Assurance Rx (PDP)35Tier 5None
HealthSpring Extra Rx (PDP)2Tier 5None
HealthSpring Extra RX (PDP)3Tier 5None
Horizon Medicare Blue Rx Enhanced (PDP)1Tier 3QL
Horizon Medicare Blue Rx Standard (PDP)1Tier 3QL
Humana Basic Rx Plan (PDP)34Tier 5None
Humana Premier Rx Plan (PDP)34Tier 5None
Humana Value Rx Plan (PDP)34Tier 5None
MedicareBlue Rx Standard (PDP)1Tier 3QL
Prescription Blue Premium (PDP)1Tier 3None
Prescription Blue Select (PDP)1Tier 3None
SilverScript Choice (PDP)20Tier 5None
Wellcare Classic (PDP)34Tier 2None
Wellcare Value Script (PDP)34Tier 2None

Source: CMS 2027 Part D formulary file (basic drugs and plan information), as of October 8, 2026. Publisher page

Source: CMS CY2027 landscape file (states and parent organizations), as of September 30, 2026. Publisher page

By dosage form

The 2027 formularies list Humulin R by dosage form. A plan can cover one form and leave off or restrict another, so each form is counted on its own, across all 5,495 plans.

Humulin R by dosage form, 2027
Dosage formPlans that list itRestricted (of listing)Most common tier
Injectable solution2,540 (46%)748 (29%)Tier 3
Pen injector5,186 (94%)592 (11%)Tier 5

Source: CMS 2027 Part D formulary file (basic drugs and plan information), as of October 8, 2026. Publisher page

Formulary tier

Humulin R formulary tier, 2026 and 2027
Tier2026 plans2027 plans
Tier 1233 (4%)200 (4%)
Tier 2126 (2%)274 (5%)
Tier 32,505 (48%)2,128 (41%)
Tier 419 (<1%)13 (<1%)
Tier 52,270 (43%)2,572 (49%)
Tier 680 (2%)61 (1%)

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

Plan by plan, 2026 to 2027

4,380 plan IDs are in both files. 12 of them (<1%) added prior authorization, step therapy, or a quantity limit for Humulin R, and 0 stopped listing it.

Humulin R: plans in both 2026 and 2027
Plan by planPlans
Same plan ID in both years4,380
Listed it in 2026, not in 20270 (0%)
Listed it in 2027, not in 20261 (<1%)
Moved it to a higher tier249 (6%)
Added prior authorization0 (0%)
Added step therapy0 (0%)
Added a quantity limit12 (<1%)
Added at least one of the three12 (<1%)
Removed at least one of the three47 (1%)
Plan IDs new in 20271,115
2026 plan IDs not in the 2027 file1,138

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

States from most to least restrictive

Share of 2027 Part D plans offered in each state that leave Humulin R off the formulary or list it with prior authorization, step therapy, or a quantity limit. California ranks first at 30%, with 0% of its plans using prior authorization or step therapy; 7 states tie for the lowest, 0%. States at the same share are ordered by the prior authorization or step therapy share; states equal on both shares share a rank, marked Tied.

States from most to least restrictive for Humulin R, 2027
RankState2027 plansLeft off or restrictedPrior auth or step therapyChange from 2026
1California39730%0%+2 points
2Florida54926%0%-5 points
3Pennsylvania32425%4%+1 point
4Nevada10025%0%+1 point
5Idaho4524%0%+12 points
Tied 6Tennessee15722%0%-2 points
Tied 6Oregon9222%0%-1 point
8Minnesota6321%0%-2 points
9Indiana14020%0%+4 points
Tied 10Rhode Island2917%0%+1 point
Tied 10Texas41217%0%-3 points
Tied 12New York21514%0%-2 points
Tied 12Kentucky12314%0%+4 points
14Ohio17313%0%no change
Tied 15Connecticut5411%0%-2 points
Tied 15Montana2711%0%-6 points
Tied 15Arizona14811%0%+1 point
Tied 18Virginia14510%0%-1 point
Tied 18Maine5210%0%+3 points
Tied 18Kansas8410%0%+1 point
Tied 21New Jersey749%0%-16 points
Tied 21New Mexico689%0%-15 points
23Michigan1838%7%no change
Tied 24Nebraska518%0%-3 points
Tied 24Wyoming138%0%+3 points
Tied 26Oklahoma817%0%-11 points
Tied 26Washington1147%0%no change
Tied 26Massachusetts927%0%-1 point
Tied 29Arkansas866%0%+4 points
Tied 29West Virginia706%0%-1 point
Tied 29North Carolina1776%0%-7 points
Tied 32Wisconsin975%0%-9 points
Tied 32Colorado1065%0%+1 point
Tied 32Missouri1715%0%-1 point
Tied 32Delaware435%0%no change
Tied 36Alabama1154%0%-2 points
Tied 36Georgia1514%0%-2 points
Tied 36North Dakota264%0%+1 point
Tied 36Mississippi1054%0%+1 point
Tied 36Utah534%0%+1 point
Tied 41South Dakota303%0%no change
Tied 41Iowa643%0%-2 points
Tied 43Louisiana1262%0%-1 point
Tied 43Illinois1332%0%-7 points
Tied 45Alaska90%0%no change
Tied 45District of Columbia210%0%no change
Tied 45Hawaii500%0%no change
Tied 45Maryland490%0%-14 points
Tied 45New Hampshire250%0%no change
Tied 45South Carolina910%0%-1 point
Tied 45Vermont140%0%no change

Source: CMS CY2027 landscape file (states and parent organizations), as of September 30, 2026. Publisher page

Source: CMS 2027 Part D formulary file (basic drugs and plan information), as of October 8, 2026. Publisher page

By parent organization

164 parent organizations offer 2027 Part D plans. Humana Inc. has the most, 884, and 0% of them leave Humulin R off or restrict it.

Humulin R coverage by parent organization, 2027
Parent organization2027 plans ↓List itRestrict it (of listing)Left off or restrictedChange from 2026Plans that added a restriction
Lifetime Healthcare, Inc.21100%0%0%no change0
Athena Healthcare Holdings, LLC19100%100%100%no change0
Mitchell Family Office19100%0%0%no change0
Risant Health, Inc.17100%76%76%+1 point0
Champion Health Plans-USA, LLC.16100%100%100%no change0
MEDICAL MUTUAL OF OHIO16100%0%0%no change0
Ultimate Healthcare Holdings, LLC16100%0%0%no change0
Gold Kidney Health Plan15100%100%100%no change0
Trinity Health Corporation15100%0%0%no change0
CuraCor Solutions Corp.14100%0%0%-100 points0
Lumeris Group Holdings Corporation14100%0%0%no change0
Rifkin Managed Care Holding, LLC14100%0%0%no change0
Sanford Health14100%0%0%no change0
University of Wisconsin Hospitals and Clincs Autho14100%0%0%no change0
Cambia Health Solutions, Inc.13100%100%100%no change0
Clover Health Holdings, Inc.13100%0%0%-54 points0
Henry Ford Health System13100%92%92%no change0
Curana Health Holdings, LLC12100%0%0%no change0
Fallon Community Health Plan, Inc.12100%0%0%no change0
Louisiana Health Service & Indemnity Company12100%0%0%no change0
ATRIO Health Plans11100%100%100%no change0
Aware Integrated, Inc.10100%100%100%no change0
Gemstone Holdings, Inc.100%none list it100%no change0
Intermountain Health Care, Inc.10100%0%0%no change0
Thomas Jefferson University10100%0%0%no change0

Source: CMS CY2027 landscape file (states and parent organizations), as of September 30, 2026. Publisher page

Source: CMS 2027 Part D formulary file (basic drugs and plan information), as of October 8, 2026. Publisher page

Near it by Part D spending

Pharmacies near you

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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 CY2027 landscape file (states and parent organizations), as of September 30, 2026. Publisher page

Source: CMS Medicare Part D Spending by Drug, 2024 data, as of June 25, 2026. Publisher page

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