Exhibit 99.6 August 27, 1999 Ventiv Health, Inc. 200 Cottontail Lane Vantage Court North Somerset, New Jersey 08873 Dear Sir or Madam: This letter confirms my consent to serve as a member of the Board of Directors of Ventiv Health, Inc. Confirmed: /s/...Board Member Consent Letter • September 1st, 1999 • Ventiv Health Inc • Services-management consulting services
