Medicare Part D coverage · metformin hydrochloride · RxCUI 861771
metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet]
Per the CMS 2026 Part D formulary file, metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet] is covered by 4,788 Medicare Part D plans (94.8% of enrollable products), averaging Tier 2.7, with prior authorization required on 0.3% of covering formularies.
- 94.8%
- Plan coverage
- 4,788
- Plans covering
- T2.7
- Avg tier
- 0.3%
- Prior auth required
What the CMS Formulary Data Shows for metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet]
Per the CMS 2026 Part D formulary file, metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet] (RxNorm concept RXCUI 861771, generic name metformin hydrochloride) appears on 316 distinct formulary files spanning 4,788 Medicare Part D plan offerings - 94.8% of enrollable Part D products, near-universal placement. Tier placement ranges from Tier 1 to Tier 6, with a cross-plan average of Tier 2.7.
Real-world access to metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet] depends on utilization management as much as tier placement: 0.3% of covering formularies require prior authorization. 0% require step therapy. 92.7% apply quantity limits.
Historical spending context from the CMS Medicare Part D Drug Spending Dashboard shows 5,918,026 Part D beneficiaries filled metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet] in 2023, with total plan-and-beneficiary spending of $247,530,899 and an average per-beneficiary annual cost of $41.83. The plan-by-plan detail below lists exactly which PDP and MA-PD contracts carry metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet] today.
Coverage Details
- Formularies covering
- 316
- Plans covering
- 4,788
- Coverage rate
- 94.8%
- Tier range
- Tier 1 – Tier 6
- Average tier
- Tier 3, Preferred Brand
Restrictions
- Prior authorization required
- 0.3% of formularies
- Step therapy required
- 0% of formularies
- Quantity limits
- 92.7% of formularies
2023 Medicare Spending
- Beneficiaries
- 5,918,026
- Total spending
- $247,530,899
- Avg per beneficiary
- $41.83
Tier Distribution Across Plans
Medicare Advantage Plans (MA-PD) Covering metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet]
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 | No | $0 | VA |
| Sentara Community Complete (HMO D-SNP) | Sentara Health Plans | T1 | No | $0 | VA |
| Florida Complete Care-Duals VIP (HMO-POS D-SNP) | Hpmp OF Florida, Inc. | T1 | No | $0 | FL |
| ElderServe MAP (HMO D-SNP) | Elderserve Health, Inc. | T1 | No | $0 | NY |
| Cooperative Advantage (HMO D-SNP) | Group Health Cooperative OF EAU Claire | T1 | No | $0 | WI |
| Longevity Health Plan (PPO I-SNP) | Longevity Health Plan OF NEW Jersey Insurance Comp | T1 | No | $0 | NJ |
| Mercy Care Advantage (HMO D-SNP) | Mercy Care | T1 | No | $0 | AZ |
| Mercy Care Advantage (HMO D-SNP) | Mercy Care | T1 | No | $0 | AZ |
| Mercy Care Advantage (HMO D-SNP) | Mercy Care | T1 | No | $0 | AZ |
| Elderplan Plus Long-Term Care (HMO-POS D-SNP) | Elderplan, Inc. | T1 | No | $0 | NY |
| Health Choice Pathway (HMO D-SNP) | Health Choice Arizona, Inc. | T1 | No | $0 | AZ |
| Healthfirst CompleteCare (HMO D-SNP) | Healthfirst Health Plan, Inc. | T1 | No | $0 | NY |
| IMCare Classic (HMO D-SNP) | Itasca Medical Care | T1 | No | $0 | MN |
| Johns Hopkins Advantage MD D-SNP (HMO D-SNP) | Hopkins Health Advantage, Inc. | T1 | No | $0 | MD |
| MetroPlus UltraCare (HMO D-SNP) | Metroplus Health Plan, Inc. | T1 | No | $0 | NY |
| Upper Peninsula Health Plan MI Coordinated Health (HMO D-SNP) | Upper Peninsula Health Plan, LLC | T1 | No | $0 | MI |
| CareSource Dual Advantage (HMO D-SNP) | Caresource Georgia Co. | T1 | No | $0 | GA |
| Senior Whole Health SCO (HMO D-SNP) | Senior Whole Health, LLC | T1 | No | $0 | MA |
| Senior Whole Health SCO NHC (HMO D-SNP) | Senior Whole Health, LLC | T1 | No | $0 | MA |
| Molina One Care (HMO D-SNP) | Senior Whole Health, LLC | T1 | No | $0 | MA |
Show the next 30 plans
| HAP CareSource MI Coordinated Health (HMO D-SNP) | HAP Caresource | T1 | No | $0 | MI |
| PruittHealth Premier D-SNP (HMO D-SNP) | Pruitthealth Premier, Inc. | T1 | No | $0 | GA |
| Simpra Advantage Dual Care (PPO D-SNP) | Simpra Advantage, Inc. | T1 | No | $0 | AL |
| Gold Coast Health Plan Total Care Advantage (HMO D-SNP) | Ventura County Medi-Cal Managed Care Commission | T1 | No | $0 | CA |
| Blue Cross Medicare Advantage Dual Care Plus (HMO D-SNP) | Health Care Service Corporation | T1 | No | $0 | NM |
| Blue Cross MA Dual Care Plus Preferred (PPO D-SNP) | Health Care Service Corporation | T1 | No | $0 | NM |
| Horizon NJ TotalCare (HMO D-SNP) | Horizon Healthcare OF NEW Jersey, Inc. | T1 | No | $0 | NJ |
| SecureBlue (HMO D-SNP) | HMO Minnesota | T1 | No | $0 | MN |
| NaviCare (HMO D-SNP) | Fallon Community Health Plan | T1 | No | $0 | MA |
| Hamaspik Medicare Choice (HMO D-SNP) | Hamaspik, Inc. | T1 | No | $0 | NY |
| SeniorCare Complete (HMO D-SNP) | South Country Health Alliance | T1 | No | $0 | MN |
| AbilityCare (HMO D-SNP) | South Country Health Alliance | T1 | No | $0 | MN |
| Alameda Alliance Wellness (HMO D-SNP) | Alameda Alliance FOR Health | T1 | No | $0 | CA |
| CCA One Care (HMO D-SNP) | Commonwealth Care Alliance, Inc. | T1 | No | $0 | MA |
| CCA Senior Care Options (HMO D-SNP) | Commonwealth Care Alliance, Inc. | T1 | No | $0 | MA |
| Elevate Medicare Choice (HMO D-SNP) | Denver Health Medical Plan, Inc. | T1 | No | $0 | CO |
| AllCare Advantage Redwood Rx (HMO D-SNP) | Allcare Health Plan, Inc. | T1 | No | $0 | OR |
| PrimeWest Senior Health Complete (HMO D-SNP) | Primewest Rural MN Health Care Access Initiative | T1 | No | $0 | MN |
| Prime Health Complete (HMO D-SNP) | Primewest Rural MN Health Care Access Initiative | T1 | No | $0 | MN |
| Alterwood Advantage Dual Secure (HMO D-SNP) | Alterwood Advantage, Inc. | T1 | No | $0 | MD |
| Nascentia Dual Advantage (HMO D-SNP) | Visiting Nurse Association OF Central NEW York | T1 | No | $0 | NY |
| Provider Partners Pennsylvania Community Plan (HMO I-SNP) | Provider Partners Health Plan OF Pennsylvania, Inc | T1 | No | $0 | PA |
| Provider Partners North Carolina Community Plan (HMO I-SNP) | Provider Partners Health Plan OF North Carolina | T1 | No | $0 | NC |
| Provider Partners Indiana Community Plan (HMO I-SNP) | Provider Partners Health Plan OF Indiana | T1 | No | $0 | IN |
| Provider Partners Missouri Community Plan (HMO I-SNP) | Provider Partners Health Plan OF Missouri, Inc. | T1 | No | $0 | MO |
| Abilis Health Community (HMO I-SNP) | Signature Advantage, LLC | T1 | No | $0 | KY, TN |
| Arkansas Integrated Providers (AIP) Dual Advantage (HMO D-SNP) | Arkansas Superior Select, Inc. | T1 | No | $0 | AR |
| Platino Blindao (HMO D-SNP) | Triple S Advantage, Inc. | T1 | No | $0 | PR |
| Platino Enlace (HMO D-SNP) | Triple S Advantage, Inc. | T1 | No | $0 | PR |
| Platino Advance (HMO D-snp) | Triple S Advantage, Inc. | T1 | No | $0 | PR |
Showing top 50 of 100 plans.
Frequently Asked Questions
Is metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet] covered by Medicare Part D?
Yes, metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet] is covered by 4,788 Medicare Part D plans (94.8% of all Part D formularies).
What tier is metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet] on Medicare Part D plans?
metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet] averages Tier 2.7 across Part D plans, ranging from Tier 1 to Tier 6.
Does metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet] require prior authorization?
0.3% of Part D formularies require prior authorization for metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet]. Step therapy: 0%. Quantity limits: 92.7%.
How much does Medicare spend on metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet]?
In 2023, total Medicare Part D spending on metformin hydrochloride 1000 MG / sitagliptin phosphate 50 MG Oral Tablet [Janumet] was $247,530,899, covering 5,918,026 beneficiaries. The average spend per beneficiary was $41.83.
Read our methodology - how this data is sourced, computed, and verified.
Nationwide similar Part D drugs
Data-derived peers across the CMS Part D formulary extract: nearest average tier placement and nearest prior-authorization rate. Not therapeutic alternatives or same-generic strengths.
Closest average formulary tier
- 12 HR carbamazepine 200 MG Extended Release Oral Tablet T2.7
- 100 ML fluconazole 2 MG/ML Injection T2.7
- Augmented betamethasone 0.5 MG/ML Topical Lotion T2.7
- amylase 180000 UNT / lipase 36000 UNT / protease 114000 UNT Delayed Release Oral Capsule [Creon] T2.7
- 2 ML clindamycin 150 MG/ML Injection T2.7
- 0.5 ML tirzepatide 10 MG/ML Auto-Injector [Mounjaro] T2.7
Similar prior-authorization rate
- mitotane 500 MG Oral Tablet [Lysodren] 0.3% PA
- azithromycin 600 MG Oral Tablet 0.3% PA
- diazoxide 50 MG/ML Oral Suspension 0.3% PA
- cilostazol 100 MG Oral Tablet 0.3% PA
- minoxidil 10 MG Oral Tablet 0.3% PA
- ammonium lactate 120 MG/ML Topical Cream 0.3% PA