Reid has scored nine goals in his last nine matches to take his total to 18 and was subsequently given the League Two Player of the Month award for March.
Robins was the last Rotherham player to break the 20-goal barrier with a tally of 25 during the 2000/01 campaign which saw the Millers promoted to the Championship.
"It would be nice to see him hit that 20 goal mark and I'm sure he can do that," Robins told The Star.
"He was named League Two Player of the Month the other day and rightly so and I'm sure he would have liked to follow up with a win at Barnet and a goal but it wasn't to be our night or his.
"Now he has got to knuckle down again and maintain the form that he has shown over the last few months. If he does that then he can look back on a successful season."