Mark O. Dietrich, CPA/ABV, is editor, technical editor, and contributing author to the Business Valuation Resources/American Health Lawyers' Association Guide to Healthcare Valuation 3rd Edition (2012), editor and principal author of Business Valuation Resources' Guide to Physician Practice Valuation (2nd Edition, due in 2012), and co-author with Gregory Anderson, CPA, CVA, of The Financial Professional's Guide to Healthcare Reform to be published by John Wiley & Sons in 2012. Mark is also author of the Medical Practice Valuation Guidebook and co-author of PPC's Guide to Healthcare Consulting, along with more than 100 articles on valuation, taxation, managed care, and the healthcare regulatory environment. Mark's career experience includes serving as partner-in-charge of the annual audit of an 80 physician tax-exempt faculty group practice, representation of tax-exempt and taxable entities in Internal Revenue Service field audits, participation in the development of a 250-physician independent network and negotiation of its managed care and Medicare Advantage contracts, and more than 200 valuation engagements in the healthcare industry. A regular speaker at national conferences on healthcare valuation and other topics, Mark also lectured in the United Kingdom during 2009 and 2011 on managed care, healthcare valuation, and valuation of medical practices to Her Majesty's Revenue and Customs and has been invited to Scotland and Northern Ireland in 2012. He is a member of the editorial board of Financial Valuation and Litigation Expert and the AICPA's National Healthcare Industry Conference Committee and will chair that conference in 2012. Mark has also served on the AICPA's ABV Credential Committee and ABV Exam Review Course Task Force.