Medicare Part B Premium and Deductible Medicare Part B covers physician services, outpatient hospital services, certain home health services, durable medical equipment, and certain other medical and health services not covered by Medicare Part A. Each year the Medicare Part B premium, deductible, and coinsurance rates are determined according to the Social Security Act. The standard monthly premium for Medicare Part B enrollees will be $164.90 for 2023, a decrease of $5.20 from $170.10 in 2022. The annual deductible for all Medicare Part B beneficiaries is $226 in 2023 , a decrease of $7 from the annual deductible of $233 in 2022.