We are driven by our mission to advance the development of new treatments.

Medidata’s journey started in 1999 when a scientist working on his first clinical trial waded through inefficiencies and delays, and knew that technology could improve the process. Over time, we’ve grown to be the leader in clinical technology, with thousands of people working towards the same goal: using the latest technology to help our life sciences customers bring their life-saving new treatments to the public..

Leadership Team

Tarek Sherif
Life Sciences & Healthcare Sector Board Chairman for Dassault Systèmes

Medidata co-founder Tarek Sherif assumed the full-time role of Life Sciences & Healthcare Sector board Chairman for Dassault Systèmes in July 2021.

Over the span of 20 years, in his role as CEO, Tarek led Medidata from startup to becoming one of the leading global providers of cloud-based solutions to the life science industry and the largest in clinical development, while defining the vertical cloud company business model. Medidata is the most-used platform for clinical trials around the world, powering tens of thousands of clinical trials, with millions of patients. Medidata is now also redefining the patient experience in clinical trials and is helping customers use the power of data and AI to bring safer drugs to market more quickly. In 2019, in one of the largest healthcare technology acquisitions in history, Medidata became part of Dassault Systemes.

Tarek has more than 35 years of leadership experience in health-tech and finance. Prior to Medidata, he co-managed and managed equity funds focused on public and private technology and life sciences companies, as well as holding various positions in finance.

Tarek received his BA in economics from Yale University in 1984 and graduated from Columbia Business School in 1991, where he earned a degree in business administration and finance. He serves as the co-chair of the Partnership Fund for New York City, which is focused on creating business opportunities and jobs for city residents. Tarek also sits on the advisory board of Students on Ice, a not-for-profit organization focused on inspiring youth through educational expeditions to the polar regions, and​ the Musculoskeletal Advisory Board at NYU Langone Medical Center​.

Pascal Daloz
Chairman & CEO, Medidata

Pascal Daloz has been Chairman of Medidata since 2019 and CEO of Medidata since 2023. He has been Chief Operating Officer and Head of the Operations Executive Committee of Dassault Systèmes since 2020, and Deputy CEO since 2023.

As Deputy CEO & Chief Operating Officer, his role is to orchestrate the transformation of all strategic functions, with the aim for Dassault Systèmes to become the world leader in three key sectors of the economy: manufacturing industries, life sciences & healthcare, infrastructure and cities. With his ability to embrace future trends and bring together the most original talents, he takes a multidisciplinary approach to the company’s development, combining operational knowledge, technological expertise and an astute acquisition strategy. He has a remarkable track record integrating and growing brands. With the firm belief that disruptive technology and social evolution cannot be approached as distinct entities, Daloz has made a key contribution to Dassault Systèmes’ policy of pioneering new sectors, especially in life sciences & healthcare.

As Medidata’s Chairman & CEO, his ambition is to expand the brand’s scope to the entire cycle of the patient journey to lead the way toward precision medicine. This implies to connect all elements from molecule development to prevention to care, and to combine new therapeutics, new med practices, and new med-tech. In this process, Medidata will be empowered with all the scientific, technological, and business capabilities offered by Dassault Systèmes. This will accelerate the company’s shift “from things to life,” as the ways of thinking, processes, and methods developed in the organic (living) world are applied to the non-organic world to push back the limits of what is possible in sustainable innovation.

Michael Pray
Chief Operating Officer of Medidata and LSE

Michael Pray is Chief Operating Officer of Medidata and Life Sciences Engagement at Dassault Systèmes. Michael leads the day-to-day operations at Medidata and works to drive continued growth of the Dassault Systèmes life sciences sector.

With more than 25 years of industry experience, Michael has a proven track record of building and scaling high-performing teams in both start-up and high-growth environments. Since 2016, Michael was EVP and General Manager of Medidata's global commercial organization prior to its acquisition by Dassault Systèmes. He was then named Chief Commercial Officer of Life Sciences Engagement at Dassault Systèmes. Michael has been instrumental in Medidata’s rapid growth since 2016, which includes more than doubling total revenue to $1B+ and driving a 100% increase in customers.

Michael previously served as Chief Revenue Officer of Tangoe, a global technology company that provides cloud solutions to effectively manage IT assets and services. Before Tangoe, he spent 14 years within IBM's software group which included a series of executive positions with roles of increasing responsibility. He served as VP of Worldwide Analytic Solution Sales, where he was responsible for sales, technical sales, and channels that drove over $1.5B in annual revenue. 

Michael earned a bachelor's degree from the University of Michigan in Ann Arbor.

Anthony Costello
CEO Patient Cloud, Dassault Systèmes

Anthony Costello is CEO, Patient Cloud at Dassault Systemes. In this role, Anthony leads the development of Medidata’s patient-facing activities and solutions including de-centralized trials technology and strategy, Patient Cloud, Dassault Systèmes product apps, myMedidata patient portal, Disease Registries and Recruitment, Telehealth and Virtual Visits, and Sensor Cloud and Biomarker Discovery.

Naveen Bhateja
EVP, Chief People Officer

Naveen Bhateja is Executive Vice President and Chief People Officer at Medidata. In this role, Naveen oversees critical functions that instill Medidata’s culture, contribute to the company’s overall performance, and advance Medidata’s purpose to Solve the Impossible.

As the head of the People Organization, Naveen leads an ecosystem comprised of People Operations, Talent Acquisition, Diversity, Equity and Inclusion, Workplace Benefits and Resources, and Corporate Social Responsibility.

A 25-year industry veteran, Naveen’s career reflects achievements in executive and management roles with industry leaders that include General Electric, JP Morgan Chase, Experian, and Amazon.

The recipient of several American Business Awards, his efforts have contributed to Medidata’s score of 100 on HRC’s Global Equality Index and appointment to the Great Place to Work list for workplace excellence.

A passionate mental health advocate, Naveen serves on the board for the non-profit Geeks Rule; is a board advisor to tech startups and to the Josh Bersin Academy, the SemperVirens Technology Venture Fund, and DNX Ventures. An alumnus of the Harvard Business School, he holds an MBA from the University of Leeds, and has received his Directorship certification from the National Association of Corporate Directors (NACD).

Janet Butler
EVP, Head of LSE Global Sales

Janet Butler is the Executive Vice President, Head of Life Sciences Engagement Global Sales at Dassault Systèmes.

Janet leads the commercial go-to-market team responsible for global sales of Dassault Systèmes brands and solutions into the life sciences sector. She joined Medidata in 2016 to lead their strategic partnerships and expanded her role to include leadership of the enterprise business.

Prior to Medidata, Janet worked at IBM for more than 20 years, where she held numerous leadership roles. Her most recent role at IBM was Vice President of Hybrid Cloud. In this position, she led sales of the Hybrid Cloud Software across North America. She also held global roles leading worldwide sales for IBM Commerce and Industry Solutions. Janet arrived at IBM by way of acquisition and led software sales for IBM’s Wall Street business.

Janet graduated from the University of Delaware with a Bachelor of Science degree.

Rick Goldstein
EVP, General Counsel

Rick Goldstein serves as General Counsel at Medidata.

Rick leads Medidata’s business-focused Legal and Compliance teams, which support the company’s commercial relationships, protect the company’s intellectual property, advise on data privacy and protection regulations, identify and mitigate enterprise risk, and guide Medidata through cutting-edge legal and compliance issues attendant to creating transformative technology and data analysis products.

Prior to Medidata, Rick was a partner at Orrick, Herrington & Sutcliffe LLP, a leading global law firm, where he represented some of the world’s best-known technology and pharmaceutical companies in antitrust, intellectual property, and other complex commercial litigation and investigations. Earlier in his career, Rick was Deputy General Counsel at internet advertising pioneer DoubleClick Inc. and was a member of the commercial/legal team at Merck & Co., Inc. He received a JD from New York University School of Law and a Bachelor of Arts from the University of Pennsylvania.

Joe Schmidt
EVP, Head of Medidata Customer Services and Success

Joe Schmidt is the Executive Vice President, Head of Customer Services and Success at Medidata, a Dassault Systèmes company. Joe leads a global team that supports over 2,000 customers, delivering services from product configuration, ongoing study support, strategic consulting, digital transformations, study management, analytics, and platform management.

Joe has over 25 years of experience building and leading teams in the clinical research industry largely focused on technology-enabled solutions that help bring better treatments to patients faster. Since joining Medidata in 2017 supporting enterprise clients, Joe created the Patient Cloud services team whose focus is supporting mobile, patient-facing, and decentralized clinical trial solutions.

Joe previously served as the Chief Operating Officer of Clinical Ink. Before Clinical Ink, he spent 10 years with MedAvante (now WCG) as Executive Vice President and General Manager, leading the solution development and global expansion activities. Joe started his career at Covance working in clinical operations with roles of increasing responsibility. He has a bachelor’s degree in biology from the University of Scranton.

Tom Doyle
SVP, Medidata Product R&D

Tom Doyle heads product development at Medidata, a leader in clinical research technology and a life sciences arm of Dassault Systèmes. In this role, Tom leads Medidata’s work in developing industry-leading solutions for patients, sites, sponsors, and CROs, improving and accelerating the design, execution, and oversight of clinical trials – essential in bringing new and novel treatments for patients. 

Tom joined Medidata in 2019, bringing 20 years of global experience in medtech and data science. Before coming to Medidata, Tom held leadership roles at Janssen and at Boehringer Ingelheim, championing technology to drive new experiences and better insights. He’s passionate about the power of innovation to transform clinical research towards better outcomes and better experiences for patients.

Tom has a BMath in computer science from the University of Waterloo in Ontario, Canada.

Sanjay Mandloi
SVP, Head of R&D Cloud and Operations

Sanjay Mandloi is Senior Vice President and Head of R&D Cloud and Operations at Medidata, a Dassault Systèmes company. His global team of engineers transforms and streamlines R&D operations and processes for all Medidata products and services. He also identifies and leverages synergies with other Dassault Systèmes brands, and provides highly scalable, reliable, and sustainable global cloud-based data solutions for our customers.

Sanjay joined Medidata in 2019 with deep expertise in building and deploying enterprise-level IT solutions in complex regulatory environments in industries including financial services, pharmaceuticals, healthcare, and telecommunications. Prior to his current appointment, he held technology leadership roles at GS1, Johnson & Johnson, JP Morgan Chase, and Merril Lynch.

Sanjay has a Bachelor of Science degree in environmental science from St. Joseph's College in Bangalore, India, and a Master of Science degree in software engineering from the University of Birmingham in the UK.

Fareed Melhem
SVP, Head of Medidata AI

Fareed Melhem is the Head of Medidata AI, Medidata’s data science business. In this role, Fareed leads Medidata’s work developing analytic solutions that improve the design, planning, and execution of clinical trials and support the generation of novel evidence to support regulatory success, market access, and launch.  

Prior to Medidata, Fareed spent 10 years at McKinsey & Company where he worked with biopharma, CROs, and technology players in the R&D space. He led the R&D vertical in McKinsey’s Center for Analytics and Real World Evidence, advising clients on the application of advanced analytics across research and clinical development. Fareed has written on the impact that data and analytics can have in R&D and speaks regularly on the topic.

Fareed holds an MBA from the Darden School of Business, University of Virginia and a BA from Columbia University.

Jennifer Plumer
SVP, Head of Medidata and Life Sciences Engagement Marketing

Jennifer Plumer is the senior vice president, Head of Medidata and Life Sciences Engagement Marketing.  She is an award-winning marketing leader who brings 20 years of well-rounded experience and proven track record across all marketing disciplines within the life sciences technology and healthcare industries.

Joining Medidata in 2016, Jennifer is responsible for leading the global marketing strategy and execution for Medidata and the life sciences sector. Driven by a passion for developing cross-functional marketing strategies and plans, she has developed centers of excellence, operating models, and frameworks that have led to increased impact in the market and greater synergies across marketing teams, channels, and tactics.

Jennifer has received recognition for her marketing initiatives, including Forrester’s 2022 Marketing Program of the Year Award for her strategic work establishing and implementing the audience framework and marketing levers across the marketing discipline. She was also recognized with a 2022 Global ACE Gold Award by the ANA for Medidata’s Solve the Impossible brand campaign.

Jennifer received a Bachelor of Arts degree from the University of North Carolina at Chapel Hill and an MBA from Liberty University.

Josh Schwartz
Chief Financial Officer

Josh Schwartz is the Chief Financial Officer at Medidata, responsible for overseeing financial planning and analysis, pricing, commercial engagement, controllership, procurement, tax and operations. He and his team partner with leadership across the organization to implement financial strategies that drive forward the company's strategic and operational objectives. 

Josh brings nearly 20 years of corporate and operational finance experience across the technology industry with a focus on SaaS. Since joining Medidata in 2010, Josh has held financial leadership roles with increasing responsibility, helping to build high performing teams and driving scale across the organization.

Josh received his Bachelor of Science degree in Accounting and Finance from the University of Maryland. He started his career with Grant Thornton and obtained his CPA license in the state of Maryland.