Yes, the bicarbonate ion is amphoteric.
An amphoteric substance can act both as an acid in one reaction, and as a base in another reaction.
In your case, the bicarbonate ion,
When placed in aqueous solution, the bicarbonate ion can pick up a proton from water and form carbonic acid and hydroxide ions, thus acting as a base
or donate a proton to water to form carbonate ions and hydronium ions, thus acting as an acid.
Likewise, it can react with hydronium ions to form carbonic acid and with hydroxide ions to form bicarbonate ions.
SIDE NOTE As you can see in the diagram, carbonic acid is actually carbon dioxide and water.