rifaximin 200 MG Oral Tablet [XIFAXAN]

Verify with CMS →

rifaximin

RxCUI: 539789

Important: Drug coverage and costs vary by plan and location. Verify coverage directly with your Medicare plan before filling a prescription. This is informational data only and should not replace advice from your healthcare provider or pharmacist.
55.5%
Plan Coverage
2,813
Plans Covering
T3.1
Avg Tier
89.4%
Prior Auth Required

What the CMS Formulary Data Shows for rifaximin 200 MG Oral Tablet [XIFAXAN]

Per the CMS 2026 Part D formulary file, rifaximin 200 MG Oral Tablet [XIFAXAN] (RxNorm concept RXCUI 539789, generic name rifaximin) appears on 170 distinct formulary files spanning 2,813 Medicare Part D plan offerings - 55.5% of enrollable Part D products, mid-range placement; shopping across contracts changes access. Tier placement ranges from Tier 1 to Tier 4, with a cross-plan average of Tier 3.1.

Real-world access to rifaximin 200 MG Oral Tablet [XIFAXAN] depends on utilization management as much as tier placement: 89.4% of covering formularies require prior authorization. 0% require step therapy. 72.4% apply quantity limits.

Historical spending context from the CMS Medicare Part D Drug Spending Dashboard shows 96,011 Part D beneficiaries filled rifaximin 200 MG Oral Tablet [XIFAXAN] in 2023, with total plan-and-beneficiary spending of $1,090,110,101 and an average per-beneficiary annual cost of $11,354.01. The plan-by-plan detail below lists exactly which PDP and MA-PD contracts carry rifaximin 200 MG Oral Tablet [XIFAXAN] today.

Coverage Details

Formularies covering
170
Plans covering
2,813
Coverage rate
55.5%
Tier range
Tier 1 – Tier 4
Average tier
Tier 3, Preferred Brand

Restrictions

Prior authorization required
89.4% of formularies
Step therapy required
0% of formularies
Quantity limits
72.4% of formularies

2023 Medicare Spending

Beneficiaries
96,011
Total spending
$1,090,110,101
Avg per beneficiary
$11,354.01

Tier Distribution Across Plans

69 plans
Tier 1, Preferred Generic
6 plans
Tier 2, Generic
25 plans
Tier 3, Preferred Brand

Medicare Advantage Plans (MA-PD) Covering rifaximin 200 MG Oral Tablet [XIFAXAN]

100 Medicare Advantage plans with Part D drug coverage include this drug.

Plan Insurer Tier PA Premium States
Sentara Community Complete Select (HMO D-SNP) SENTARA HEALTH PLANS T1 Yes $0 VA
Sentara Community Complete (HMO D-SNP) SENTARA HEALTH PLANS T1 Yes $0 VA
ElderServe MAP (HMO D-SNP) ELDERSERVE HEALTH, INC. T1 Yes $0 NY
Cooperative Advantage (HMO D-SNP) GROUP HEALTH COOPERATIVE OF EAU CLAIRE T1 Yes $0 WI
Longevity Health Plan (PPO I-SNP) LONGEVITY HEALTH PLAN OF NEW JERSEY INSURANCE COMP T1 Yes $0 NJ
Upper Peninsula Health Plan MI Coordinated Health (HMO D-SNP) UPPER PENINSULA HEALTH PLAN, LLC T1 Yes $0 MI
CareSource Dual Advantage (HMO D-SNP) CARESOURCE GEORGIA CO. T1 Yes $0 GA
HAP CareSource MI Coordinated Health (HMO D-SNP) HAP CARESOURCE T1 Yes $0 MI
SeniorCare Complete (HMO D-SNP) SOUTH COUNTRY HEALTH ALLIANCE T1 Yes $0 MN
AbilityCare (HMO D-SNP) SOUTH COUNTRY HEALTH ALLIANCE T1 Yes $0 MN
Alameda Alliance Wellness (HMO D-SNP) ALAMEDA ALLIANCE FOR HEALTH T1 Yes $0 CA
Elevate Medicare Choice (HMO D-SNP) DENVER HEALTH MEDICAL PLAN, INC. T1 Yes $0 CO
AllCare Advantage Redwood Rx (HMO D-SNP) ALLCARE HEALTH PLAN, INC. T1 Yes $0 OR
PrimeWest Senior Health Complete (HMO D-SNP) PRIMEWEST RURAL MN HEALTH CARE ACCESS INITIATIVE T1 Yes $0 MN
Prime Health Complete (HMO D-SNP) PRIMEWEST RURAL MN HEALTH CARE ACCESS INITIATIVE T1 Yes $0 MN
Alterwood Advantage Dual Secure (HMO D-SNP) ALTERWOOD ADVANTAGE, INC. T1 Yes $0 MD
Nascentia Dual Advantage (HMO D-SNP) VISITING NURSE ASSOCIATION OF CENTRAL NEW YORK T1 Yes $0 NY
Provider Partners Pennsylvania Community Plan (HMO I-SNP) PROVIDER PARTNERS HEALTH PLAN OF PENNSYLVANIA, INC T1 Yes $0 PA
Provider Partners North Carolina Community Plan (HMO I-SNP) PROVIDER PARTNERS HEALTH PLAN OF NORTH CAROLINA T1 Yes $0 NC
Provider Partners Indiana Community Plan (HMO I-SNP) PROVIDER PARTNERS HEALTH PLAN OF INDIANA T1 Yes $0 IN
Provider Partners Maryland Community Plan (HMO I-SNP) PROVIDER PARTNERS HEALTH PLAN, INC. T1 Yes $0 MD
Provider Partners Missouri Community Plan (HMO I-SNP) PROVIDER PARTNERS HEALTH PLAN OF MISSOURI, INC. T1 Yes $0 MO
Abilis Health Community (HMO I-SNP) SIGNATURE ADVANTAGE, LLC T1 Yes $0 KY, TN
Arkansas Integrated Providers (AIP) Dual Advantage (HMO D-SNP) ARKANSAS SUPERIOR SELECT, INC. T1 Yes $0 AR
Community Care's Partnership Program (HMO D-SNP) COMMUNITY CARE HEALTH PLAN, INC. T1 No $0 WI
Mass General Brigham SCO (HMO D-SNP) MASS GENERAL BRIGHAM HEALTH PLAN, INC T1 Yes $0 MA
Mass General Brigham One Care (HMO D-SNP) MASS GENERAL BRIGHAM HEALTH PLAN, INC T1 Yes $0 MA
Highmark Wholecare Medicare Assured Diamond (HMO D-SNP) GATEWAY HEALTH PLAN, INC. T1 Yes $0 PA
Highmark Wholecare Medicare Assured Diamond (HMO D-SNP) GATEWAY HEALTH PLAN, INC. T1 Yes $0 PA
Highmark Health Options Duals (HMO D-SNP) HIGHMARK HEALTH OPTIONS WEST VIRGINIA INC. T1 Yes $0 WV
Highmark Health Options Duals (HMO D-SNP) HIGHMARK BCBSD, INC. T1 Yes $0 DE
Longevity Health Plan (HMO I-SNP) LONGEVITY HEALTH PLAN OF FLORIDA, INC. T1 Yes $4.80 FL
Gold Dialysis & Kidney Complete (HMO-POS C-SNP) GOLD KIDNEY OF FLORIDA INC T1 Yes $4.80 FL
Provider Partners Texas Advantage Plan (HMO I-SNP) PROVIDER PARTNERS HEALTH PLAN OF TEXAS, INC. T1 Yes $4.80 TX
Texas Independence Health Plan, Inc. (HMO I-SNP) TEXAS INDEPENDENCE HEALTH PLAN, INC. T1 Yes $4.80 TX
Texas Independence Community Plan (HMO I-SNP) TEXAS INDEPENDENCE HEALTH PLAN, INC. T1 Yes $4.80 TX
Longevity Health Plan (HMO I-SNP) LONGEVITY HEALTH PLAN OF MICHIGAN, INC. T1 Yes $8.80 MI
Tribute Select (HMO-POS I-SNP) ARKANSAS SUPERIOR SELECT, INC. T1 Yes $8.90 AR
ATRIO Special Needs Plan (HMO D-SNP) ATRIO HEALTH PLANS T1 Yes $10.50 OR
ATRIO Special Needs Plan (HMO D-SNP) ATRIO HEALTH PLANS T1 Yes $10.50 OR
Highmark Wholecare Medicare Assured Ruby (HMO D-SNP) GATEWAY HEALTH PLAN, INC. T1 Yes $13.10 PA
Longevity Health Plan (HMO I-SNP) LONGEVITY HEALTH PLAN OF ILLINOIS, INC. T1 Yes $15.20 IL
Provider Partners Illinois Advantage Plan (HMO I-SNP) PROVIDER PARTNERS HEALTH PLAN OF ILLINOIS T1 Yes $15.20 IL
Gold Dialysis & Kidney Complete (HMO-POS C-SNP) GOLD KIDNEY OF ARIZONA T1 Yes $17.00 AZ
Highmark Wholecare Medicare Assured Ruby (HMO D-SNP) GATEWAY HEALTH PLAN, INC. T1 Yes $17.60 PA
WellSense Added Value (HMO) BOSTON MEDICAL CENTER HEALTH PLAN, INC. T1 Yes $21.70 NH
Alterwood Advantage Dual Value (HMO D-SNP) ALTERWOOD ADVANTAGE, INC. T1 Yes $31.20 MD
Provider Partners Maryland Advantage Plan (HMO I-SNP) PROVIDER PARTNERS HEALTH PLAN, INC. T1 Yes $31.20 MD
Provider Partners Maryland Essential Plan (HMO I-SNP) PROVIDER PARTNERS HEALTH PLAN, INC. T1 Yes $31.20 MD
Highmark Health Options Duals Select (HMO D-SNP) HIGHMARK BCBSD, INC. T1 Yes $31.20 DE

Frequently Asked Questions

Is rifaximin 200 MG Oral Tablet [XIFAXAN] covered by Medicare Part D?

Yes, rifaximin 200 MG Oral Tablet [XIFAXAN] is covered by 2,813 Medicare Part D plans (55.5% of all Part D formularies).

What tier is rifaximin 200 MG Oral Tablet [XIFAXAN] on Medicare Part D plans?

rifaximin 200 MG Oral Tablet [XIFAXAN] averages Tier 3.1 across Part D plans, ranging from Tier 1 to Tier 4.

Does rifaximin 200 MG Oral Tablet [XIFAXAN] require prior authorization?

89.4% of Part D formularies require prior authorization for rifaximin 200 MG Oral Tablet [XIFAXAN]. Step therapy: 0%. Quantity limits: 72.4%.

How much does Medicare spend on rifaximin 200 MG Oral Tablet [XIFAXAN]?

In 2023, total Medicare Part D spending on rifaximin 200 MG Oral Tablet [XIFAXAN] was $1,090,110,101, covering 96,011 beneficiaries. The average spend per beneficiary was $11,354.01.

Data sourced from the Centers for Medicare & Medicaid Services (CMS). See our methodology for details. Retrieved and formatted by PlainMedicare Editorial