Exhibit 23.1 Consent of Arthur Andersen LLP CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS To Covalent Group, Inc.: As independent public accountants, we hereby consent to the incorporation by reference in this S-3 Registration Statement of our report dated February 18, 2000 included in Covalent Group, Inc.'s Form 10-KSB for the year ended December 31, 1999 and to all references to our Firm included in this Registration Statement. ARTHUR ANDERSEN LLP /s/ Arthur Andersen LLP Philadelphia, Pa., August 11, 2000