EXHIBIT 11 AMSURG CORP. EARNINGS PER SHARE FOR THE THREE MONTHS ENDED MARCH 31, 2004 AND 2003 The following is a reconciliation of the numerator and denominators of basic and diluted earnings per share (in thousands, except per share amounts): PER EARNINGS SHARES SHARE (NUMERATOR) (DENOMINATOR) AMOUNT ------------- ------------- ------------- For the three months ended March 31, 2004: Net earnings from continuing operations per common share (basic) $ 8,277 30,158 $ 0.27 Effect of dilutive securities options - 674 ------------- ------ Net earnings from continuing operations per common share (diluted) $ 8,277 30,832 $ 0.27 ============= ====== Net earnings per common share (basic) $ 9,620 30,158 $ 0.32 Effect of dilutive securities options - 674 ------------- ------ Net earnings per common share (diluted) $ 9,620 30,832 $ 0.31 ============= ====== For the three months ended March 31, 2003: Net earnings from continuing operations per common share (basic) $ 6,817 30,832 $ 0.22 Effect of dilutive securities options - 326 ------------- ------ Net earnings from continuing operations per common share (diluted) $ 6,817 31,158 $ 0.22 ============= ====== Net earnings per common share (basic) $ 7,003 30,832 $ 0.23 Effect of dilutive securities options - 326 ------------- ------ Net earnings per common share (diluted) $ 7,003 31,158 $ 0.22 ============= ======