S.173: A bill to amend title XVIII of the Social Security Act to establish Medicare Health Savings Accounts.

Medicare Health Savings Accounts Act of 2007 - Amends title XVIII (Medicare) of the Social Security Act to establish a new part E (Medicare Health Savings Accounts) under which the Secretary of Health and Human Services shall establish procedures entitling each eligible beneficiary to elect to receive benefits under a Medicare Health Savings Account (HSA) instead of benefits under Medicare parts A (Hospital Insurance), B (Supplementary Medical Insurance), or D (Voluntary Prescription Drug Benefit Program).

Amends the Internal Revenue Code to conform to this Act.