The Healer feat (PHB, p. 167) says:
When you use a healer’s kit to stabilize a dying creature, that creature also regains 1 hit point.
As an action, you can spend one use of a healer’s kit to tend to a creature and restore 1d6 + 4 hit points to it, plus additional hit points equal to the creature’s maximum number of Hit Dice. The creature can’t regain hit points from this feat again until it finishes a short or long rest.
I know that a benefit from this feat is that you don't have to make a medicine check in order to stabilize a creature. However... For the second ability, is a Medicine check necessary in order to heal a creature?
I just got to use this feat for the first time yesterday and my DM had me roll a Medicine check. Is this accurate? Or does it depend on the DM?