Senator Lamar Alexander (R-TN), Chairman of the Health, Education, Labor and Pensions (HELP) Committee, announced that the actually confirmation vote for Rep. Tom Price (R-GA), who is the Trump nominee for Secretary of Health and Human Services (HHS), will not occur until mid-February.
The HELP Committee that will hear from Price on January 18, and the Senate Finance Committee is expected to hear from Rep. Price soon after, but the date has not yet been set. The Senate Finance Committee has primary responsibility for the HHS nomination, since it has jurisdiction over taxes and entitlement programs like Medicare and Medicaid.
A mid to late February nomination means that Price and HHS could not present the Trump Administration plan to repeal-and-replace Obamacare until the beginning of March, at the earliest.