Restore Growth Sales & Marketing Excellence Everett Cunningham Senior Vice President, Commercial the new QUEST

Safe Harbor Disclosure This presentation may contain forward-looking statements. Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date that they are made and which reflect management's current estimates, projections, expectations or beliefs and which involve risks and uncertainties that could cause actual results and outcomes to be materially different. Risks and uncertainties that may affect the future results of the company include, but are not limited to, adverse results from pending or future government investigations, lawsuits or private actions, the competitive environment, changes in government regulations, changing relationships with customers, payers, suppliers and strategic partners and other factors discussed in "Business," "Risk Factors," "Cautionary Factors that May Affect Future Results," "Legal Proceedings," "Management's Discussion and Analysis of Financial Condition and Results of Operations," and "Quantitative and Qualitative Disclosures About Market Risk" in the company's 2011 Annual Report on Form 10-K and "Management's Discussion and Analysis of Financial Condition and Results of Operations," "Quantitative and Qualitative Disclosures About Market Risk," and "Risk Factors" in the company's Quarterly Reports on Form 10-Q and other items throughout the Form 10-K and the company's 2012 Quarterly Reports on Form 10-Q and Current Reports on Form 8-K. the new QUEST

Vision for Sales & Marketing Excellence Be the preferred partner for diagnostic information services to key segments through sales and marketing excellence #1 in key physician and hospital call points Preferred partner to health plans and their employer customers Deliver innovative solutions to ACOs and strategic accounts Recognized as #1 by our target patient segments Revitalized Customer Focused Culture the new QUEST 3 Restore Growth 3

Key to Success #1: One sales organization, centrally led, and focused on local customer needs Fully Integrated Sales Organization Past: multiple independent teams Present: single integrated team Sales Organization o Single management o Incentives to collaborate o Speed of execution o Critical mass to focus on specialty call point needs Channels Segments (Examples) Physicians o PCPs o OBGYNs o Oncologist Hospitals o Academic o Large urban o Community Health Plans o National, Regional o Medicare Advantage and Managed Medicaid o Exchange products ACOs o Payors o IDNs o Large Physician Practices Geography Local Focus the new QUEST 3 Restore Growth 4

Key to Success #2: World-Class Management Discipline around Processes, Tools and Measurement World-class Management Discipline o Identify best practices o Roll-out standards o Instill discipline Processes Tools Measurement o Track sales operations metrics (e.g. reach, frequency, calls per day) o Quantify targets o Align key performance indicators to profit based targets o Improved CRM, cloud-based o Mobile connectivity o Call planning o Customer/market insights o Standardization unleashing economies of scale the new QUEST 3 Restore Growth 5

Key to Success #3: Build a virtuous circle of talent acquisition and retention, and instill a winning culture Quality People and Winning Culture Quality People Build a virtuous circle of talent acquisition, development and retention Winning Culture o Focus on patient care o Anticipate client needs o Understand segments and sub-segments o Collaborate within Commercial and beyond o Measure productivity and performance o Instill drive, motivation, and a spirit of winning Attract Top Talent Select the right fit Train and Develop Retain the Best Promote the best of the best Build Success Stories the new QUEST 3 Restore Growth 6

Key Takeaways o Sales and Marketing excellence will propel Quest Diagnostics to new heights o Our customers will feel the benefits of these changes: - A fully integrated sales organization will enable a high degree of focus on the needs of individual customer segments, and a deeper local presence - World-class sales management will mean our reps will be more present, more responsive and eager to anticipate customer needs - Virtuous circle of talent acquisition, retention and development - Winning culture with highly energized, motivated and effective ambassadors of everything Quest Diagnostics has to offer o The combination of these elements will result in physicians, hospitals, health plans and employers eager to partner with Quest Diagnostics more than ever the new QUEST 3 Restore Growth 7