Dispite the fact that this song is all barre chords and that might scare off
some begginers, this is a very easy song to play. This is based off of the 
youtube clip:

http://www.youtube.com/watch?v=5b74yJ6__fQ

I also believe this is how the guitar is played when ever they perform it 
live. If you have any problems with the strumming pattern or the beat of the
song, please refer to the video I provided. Also, when you've made your 
final judgement on the tab, please rate and leave a comment.

Symbols:
       
N.C.: No chords are played.

Chords:
     
     Cm (x3101x@1)Ab (xx1114@1)Bb (x1333x@1)F (133211@1) G7e|---3---4---6---1---3---| (320001@1)B|---4---4---6---1---3---|
G|---5---5---7---2---4---|
D|---5---6---8---3---3---|
A|---3---6---8---3---5---|
E|---3---4---6---1---3---|

Chorus:
Cm (x3101x@1)                AbIm (xx1114@1)about to lose my mind
                         Bb (x1333x@1)You've been gone for so long

I'm running out of time
          Ab (xx1114@1)I need a doctor
           F (133211@1)Call me a doctor
          G7 (320001@1)I need a doctor, doctor
 
 To bring me back to life
 
Verse 1:
  CmI (x3101x@1)told the World one day I would pay it back
           Ab (xx1114@1)Say it on tape, and lay it, record it

So that one day I could play it back
 Bb (x1333x@1)But I don't even know if I would leave it when I'm saying that

Ya'll start to creep in, everyday its so grey and black
 Ab (xx1114@1)Hope I just need a ray of that
                              F (133211@1)Cause no one see's my vision when I play it for em

They just say its wack
                      G7 (320001@1)They don't know what dope is
 
And I don't know if I was awake or asleep

When I wrote this,

All I know is you came to me when I was at my lowest
     Cm (x3101x@1)You picked me up, breeding life in me

I owe my life to you
 Ab (xx1114@1)Before the life of me, I dont see why you dont see like I do
 Bb (x1333x@1)But it just dawned on me you lost a son

See this light in you, it's dark. let me turn on the lights and brigthen

me and lighten you
 Ab (xx1114@1)I dont think you realise what you mean to me

Not the slightest clue
 F (133211@1)Cause me and you were like a crew

I was like your sidekick
           G7 (320001@1)You gonna either wanna fight me when I get off this mic

Or you gonna hug me

But I'm not an option, theres nothing else I can do cause...
 
Chorus:
Cm (x3101x@1)                AbIm (xx1114@1)about to lose my mind
                         Bb (x1333x@1)You've been gone for so long

I'm running out of time
          Ab (xx1114@1)I need a doctor
           F (133211@1)Call me a doctor
          G7 (320001@1)I need a doctor, doctor
 
 To bring me back to life

Verse 2:
   Cm (x3101x@1)It hurts when I see you struggle
 
You come to me with ideas
 Ab (xx1114@1)You say there pieces so I'm puzzled
                      Bb (x1333x@1)Cause what I hear is crazy

But your either getting lazy or you don't believe in you no more

Seems like your own opinions, not one you can form
 Ab (xx1114@1)Cant make a decision keep questioning yourself
        F (133211@1)Second guessing and its almost like your begging for my help
          G7 (320001@1)Like I'm your leader

Your susposed to be my mentor

I can endure no more,

I demand you remember who you are
 Cm (x3101x@1)                                                              Ab (xx1114@1)It was YOU, who believed in me When everyone was telling you dont sign me

Everyone at the label, lets tell the truth
 Bb (x1333x@1)You risked your career for me

I know it as well as you

No one wanted to mess with the white girl

Thats why I'm crying in this booth
     Ab (xx1114@1)You saved my life, now maybe its my time to save yours
 F (133211@1)But I can never repay you what you did for me is way more
G7 (320001@1)But I aint giving up faith and you aint giving up on me

Get up now, I'm dying I need you, come back for heavens sake
 
Chorus:
Cm (x3101x@1)                AbIm (xx1114@1)about to lose my mind
                         Bb (x1333x@1)You've been gone for so long

I'm running out of time
          Ab (xx1114@1)I need a doctor
           F (133211@1)Call me a doctor
          G7 (320001@1)I need a doctor, doctor
                          Cm (x3101x@1)To bring me back to life
 Ab (xx1114@1)             Bb (x1333x@1)Bring me back to life
                  Ab (xx1114@1)Bring me back to life
       F (133211@1)Oooooooooooooh
       G7 (320001@1)I need a doctor, doctor
    N.C.
 To bring me back to life

And that should be that for Karmin's cover of I Need A Doctor. I do
apologize if some of the chords don't match up exactly with the lyrics.
As I've stated before, please rate and comment my tab when you have made 
your final judgement. And, if you liked this tab, feel free to stop by my 
profile page on this site and check out some of the others. And feel free 
to also join my "UGs Online Debate" group where you get to debate and argue 
with other UG people over music topics.

-I hope you enjoy; my little droogies.