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Chlordiazepoxide is a generic drug. What agents check before quoting it: how many 2027 Part D plans cover it, on which tier, with what restrictions and copays, by plan type, carrier and state.
In 2027, 1,323 of 5,492 Medicare Part D and Medicare Advantage drug plans (24.1%) list Chlordiazepoxide on their formulary, across 99 of 286 formularies. The most common placement is tier 4 (708 plans, 53.5% of those covering it). 683 of the covering plans require prior authorization (51.6%), 0 step therapy and 1,169 a quantity limit.
354 covering plans charge a flat copay for a 30-day supply at a preferred retail pharmacy after the deductible — median $0, 212 of them $0; 969 charge coinsurance instead — median 27% of the drug's cost. Once a member's out-of-pocket drug spending reaches $2,400 in 2027, covered drugs cost $0 for the rest of the year.
2026: 1,443 of 5,496 plans covered it (26.3%); 2027: 1,323 of 5,492 (24.1%).
Of 4,367 plans offered in both years, 13 added it to the formulary and 99 dropped it.
Among plans covering it both years, 14 moved it to a higher tier and 2 to a lower one; 34 added prior authorization and 2 removed it.
| Tier | Plans |
|---|---|
| Tier 1 | 187 |
| Tier 2 | 260 |
| Tier 3 | 168 |
| Tier 4 | 708 |
| Plan type | Plans covering | Share | Prior auth |
|---|---|---|---|
| Stand-alone Part D (PDP) | 0 of 323 | 0% | — |
| Medicare Advantage with drugs (MA-PD) | 800 of 3,200 | 25% | 59.3% |
| Special needs plans (SNP) | 523 of 1,969 | 26.6% | 40% |
| Carrier | Plans covering | Usual tier | Prior auth |
|---|---|---|---|
| Humana | 0 of 846 | No tier listed | 0 |
| UnitedHealthcare | 0 of 830 | No tier listed | 0 |
| Devoted Health | 0 of 728 | No tier listed | 0 |
| Aetna Medicare | 611 of 631 | Tier 4 | 611 |
| Wellcare | 0 of 268 | No tier listed | 0 |
| HealthSpring | 0 of 226 | No tier listed | 0 |
| Kaiser Permanente | 112 of 112 | Tier 2 | 0 |
| SCAN Health Plan | 0 of 83 | No tier listed | 0 |
| Highmark Blue Cross Blue Shield or Highmark Blue Shield | 0 of 80 | No tier listed | 0 |
| Alignment Health Plan | 0 of 77 | No tier listed | 0 |
| Anthem Blue Cross and Blue Shield | 69 of 74 | Tier 3 | 0 |
| Wellpoint | 50 of 63 | Tier 3 | 0 |
| Priority Health Medicare | 40 of 40 | Tier 4 | 40 |
| CarePlus Health Plans, Inc. | 0 of 37 | No tier listed | 0 |
| Zing Health | 0 of 36 | No tier listed | 0 |
| Capital Blue Cross | 0 of 35 | No tier listed | 0 |
| Prominence Health Plan | 29 of 29 | Tier 1 | 0 |
| Medica | 0 of 27 | No tier listed | 0 |
| Anthem HealthKeepers | 25 of 26 | Tier 3 | 0 |
| Blue Cross Blue Shield of Michigan | 0 of 26 | No tier listed | 0 |
| State | Plans covering | Share |
|---|---|---|
| Alabama | 13 of 114 | 11.4% |
| Alaska | 0 of 9 | 0% |
| American Samoa | 0 of 1 | 0% |
| Arizona | 16 of 147 | 10.9% |
| Arkansas | 16 of 85 | 18.8% |
| California | 137 of 397 | 34.5% |
| Colorado | 30 of 106 | 28.3% |
| Connecticut | 17 of 54 | 31.5% |
| Delaware | 5 of 43 | 11.6% |
| District of Columbia | 5 of 12 | 41.7% |
| Florida | 107 of 545 | 19.6% |
| Georgia | 37 of 149 | 24.8% |
| Guam | 0 of 1 | 0% |
| Hawaii | 6 of 50 | 12% |
| Idaho | 1 of 45 | 2.2% |
| Illinois | 21 of 132 | 15.9% |
| Indiana | 42 of 138 | 30.4% |
| Iowa | 15 of 64 | 23.4% |
| Kansas | 26 of 84 | 31% |
| Kentucky | 30 of 121 | 24.8% |
| Louisiana | 17 of 125 | 13.6% |
| Maine | 10 of 52 | 19.2% |
| Maryland | 12 of 49 | 24.5% |
| Massachusetts | 14 of 89 | 15.7% |
| Michigan | 58 of 182 | 31.9% |
| Minnesota | 9 of 63 | 14.3% |
| Mississippi | 13 of 104 | 12.5% |
| Missouri | 51 of 170 | 30% |
| Montana | 0 of 27 | 0% |
| Nebraska | 8 of 51 | 15.7% |
| Nevada | 35 of 100 | 35% |
| New Hampshire | 0 of 25 | 0% |
| New Jersey | 19 of 73 | 26% |
| New Mexico | 3 of 68 | 4.4% |
| New York | 83 of 215 | 38.6% |
| North Carolina | 30 of 176 | 17% |
| North Dakota | 3 of 26 | 11.5% |
| Northern Mariana Islands | 0 of 1 | 0% |
| Ohio | 48 of 171 | 28.1% |
| Oklahoma | 19 of 81 | 23.5% |
| Oregon | 22 of 92 | 23.9% |
| Pennsylvania | 74 of 323 | 22.9% |
| Puerto Rico | 20 of 64 | 31.3% |
| Rhode Island | 3 of 29 | 10.3% |
| South Carolina | 17 of 89 | 19.1% |
| South Dakota | 7 of 30 | 23.3% |
| Tennessee | 23 of 156 | 14.7% |
| Texas | 118 of 407 | 29% |
| U.S. Virgin Islands | 0 of 1 | 0% |
| Utah | 7 of 53 | 13.2% |
| Vermont | 0 of 14 | 0% |
| Virginia | 36 of 144 | 25% |
| Washington | 29 of 114 | 25.4% |
| West Virginia | 25 of 69 | 36.2% |
| Wisconsin | 12 of 96 | 12.5% |
| Wyoming | 0 of 13 | 0% |
Medicare Part D paid for 104,866 30-day fills of Chlordiazepoxide in 2024 for about 25,821 enrollees, at an average total cost of $9.68 per 30-day fill (CMS Part D Prescribers by Geography and Drug, national).
Price Chlordiazepoxide and the rest of a client's list on every plan in their county.
Estimate Chlordiazepoxide costs by plan
Free tools for licensed insurance agents. Data from CMS public files; verify with plan documents before advising a client.
Counts are over every Medicare Advantage drug plan and stand-alone Part D plan in the CMS monthly formulary files, excluding employer plans. A plan counts as covering a drug when any strength or form of it is on the plan’s formulary; the tier, prior authorization, step therapy and quantity limit shown are the most favorable version on that formulary. Copays are for a 30-day supply at a preferred retail pharmacy after the deductible. This is a reference for licensed agents, not a plan recommendation; verify with the plan’s formulary before advising a client. Source: CMS Part D formulary files (release 10/08/2026). CMS formulary data.