Medicare Part B

メディケアパートB(医療保険) (medikea pāto B (iryō hoken))

Medicare Part B covers outpatient medical services including doctor visits, preventive care, outpatient surgery, durable medical equipment, and certain laboratory tests. Part B requires a monthly premium (income-adjusted) and has an annual deductible, after which Medicare pays 80% of approved costs and the enrollee pays 20% (with no out-of-pocket cap unless supplemented by Medigap). Late enrollment penalties apply if Part B is not enrolled in promptly when first eligible.

Part B works alongside Part A; together they form 'Original Medicare,' which most beneficiaries supplement with Medigap or Part D coverage.

In 9 languages

LanguageTerm
English Medicare Part B
Japanese (日本語) メディケアパートB(医療保険)
Chinese (中文) 医疗保险B部分
Korean (한국어) 메디케어 파트 B
Portuguese Medicare Parte B
Spanish Medicare Parte B
Filipino Medicare Part B
Thai เมดิแคร์ส่วน B
Vietnamese Medicare Phần B
Romanization medikea pāto B (iryō hoken)
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Last reviewed: September 2026