No. "She was genuinely concerned" carries the meaning of she actually was concerned as opposed to her faking it for whatever reason – her concern was genuine but here I would say "She was right!"
[Not a teacher]
Student or Learner
Can you say
A: My doctor was worried about me
B: She was genuinely concerned! you are underweight
With genuinely concerned i mean her concerns were justified/right - or does it have a different meaning?