Here I Am (Music by George Tipton, lyrics by John Bettis)
Not sure of the actual artist who sang it though.
"Here I am, here I am. Somebody's waiting, anticipating your tears.
Here I am, right or wrong. Where I am, you belong.
When you need someone there to be strong.
Here I am, when the good times come into town.
Here I am, for a hand or just hanging around.
Everyone sometimes stumbles and falls,
A friend is a number you know you can call
Just to hear someone tell you, "Here I am."
http://www.geocities.com/TelevisionCity/Stage/4318/Nurses.ht ml (to listen to the theme)