Our Management

Meet Our Management

When it comes to performance improvement, we lead by example. That's why we are led by a highly experienced and well-respected group of health care performance professionals who make quality and satisfaction the top priorities day in and day out.

patrick_ryanAA06A78E569APATRICK T. RYAN 

Patrick T. Ryan joined Press Ganey as Chief Executive Officer in early 2012, bringing to the company more than three decades of experience working with health care leaders and providers. As a client of Press Ganey for 12 years of his career, Pat understands the value of insights derived from listening to the patient’s voice. A longtime health care executive with a deep understanding of the complexities of managing a health system, Pat is leading the Press Ganey team in delivering transformational solutions that improve the overall safety, quality and experience of care.

 Through Pat’s leadership, Press Ganey has advanced the concept of reducing patient suffering and achieving caregiver resilience to deliver truly patient-centered care. The company has introduced industry-leading solutions that capture the voice of the patient, physician, nurse and employee to provide deeper insights, advanced analytics and actionable plans to improve the patient experience.

 Throughout his career, Pat has worked with health care leaders to improve the quality and safety of care while lowering costs. He has served as a member of the Massachusetts Hospital Association’s Committee on Governance and the Boards of Trustees of the Beth Israel Deaconess Medical Center, Lahey Health and Atrius Health.

 Pat is frequently invited to speak on a variety of topics including health care reform and organizational and cultural transformation, and has addressed thousands of health care professionals to further the mission of reducing suffering and improving the safety, quality and experience of care.

 Prior to joining Press Ganey, Pat served as CEO of The Broadlane Group, a leading cost management and supply chain organization. Previously, Pat served as CEO of PolyMedica Corporation, the parent company of Liberty Medical Supply, the nation’s largest direct-to-consumer provider of diabetes testing supplies and related services. While at PolyMedica, Pat established the Thomas O. Pyle Nursing Fellowship Fund, a scholarship honoring the late Thomas Pyle, one of the founders of Harvard Community Health Plan and PolyMedica’s former chairman.

 In addition, Pat served as the chairman and CEO of Physicians Dialysis, Inc., CEO of Principalcare Inc., President and CEO of ImageAmerica Inc., and Co-Founder and President of R.B. Diagnostics. He began his career working for American Hospital Supply Corporation.

Pat is actively involved in numerous community efforts and has served on charitable boards throughout his career. He is keenly focused on advancing the quality of education and sports activities for economically disadvantaged youth through various family scholarship programs. He has served on numerous public and private boards including Affiliated Managers Group, ImageAmerica, Renal Treatment Centers, US Oncology, PolyMedica, Hill Rom, MedAssets, American Renal Associates, and currently serves on the boards of Press Ganey Associates LLC and Sound Physicians.

Pat holds a bachelor of arts degree in political science and sociology from the University of Rochester.

joe_greskoviak1JOE GRESKOVIAK

Joe Greskoviak is Vice-Chairman of Press Ganey. Joe joined Press Ganey in 2012 as president and chief operating officer, overseeing all areas of operations, IT, product management, sales, client management, educational, advisory and consulting services.

Prior to joining Press Ganey, Joe served as president of MedAssets’ spend and clinical resource management business. In that role, he oversaw meaningful business growth and the successful integration of The Broadlane Group business, its newest acquisition, into MedAssets. Prior to that acquisition, Joe was Broadlane’s executive vice president and chief development officer. In his 12 years at Broadlane, Joe held various executive roles and was instrumental in the company’s development and growth.

Previously, Joe was vice president of business development and ecommerce at Premier Purchasing Partners, a division of Premier. He was closely involved in the formation of Premier's ecommerce company, Premier Health Exchange.

Joe began his career in health care over 30 years ago. He is an active and influential leader in the industry and an advocate for a variety of health care organizations.

He holds a bachelor's degree in political science from DePaul University in Chicago.



Dr. Thomas Lee joined Press Ganey as chief medical officer in 2013, bringing more than three decades of experience in health care performance improvement as a practicing physician, a leader in provider organizations, researcher and health policy expert. As CMO, Tom is responsible for developing clinical and operational strategies to help providers across the nation measure and improve the patient experience, with an overarching goal of reducing the suffering of patients as they undergo care, and improving the value of that care. In addition to his role with Press Ganey, Tom, an internist and cardiologist, continues to practice primary care at Brigham and Women’s Hospital in Boston.

Prior to joining Press Ganey, Tom served as Network President for Partners Healthcare System and CEO for Partners Community HealthCare, Inc., the integrated delivery system founded by Brigham and Women’s Hospital and Massachusetts General Hospital. In this capacity, Tom oversaw efforts to improve the quality and efficiency of care in this organization.

Tom is Chairman of the Board at Geisinger Health System, a member of the board of directors at Health Leads; the Board of Overseers of Weill Cornell Medical College; the Special Medical Advisory Group (SMAG) of the Veterans Administration; and the Panel of Health Advisors of the Congressional Budget Office. He also serves as a member of the Editorial Board of The New England Journal of Medicine. Tom is a Professor of Medicine, part time, at Harvard Medical School and Professor of Health Policy and Management at the Harvard School of Public Health.

Tom played a leadership role in the development and implementation of health care reform in Massachusetts, and was a member of the Massachusetts Health Care Quality and Cost Council from 2006 to 2012. He has held national leadership roles in defining and measuring quality of care, including serving on the Board of Overseers of the Malcolm Baldrige National Quality Award from 2008 to 2010 and the Committee on Performance Management of the National Committee for Quality Assurance, which develops the widely-used HEDIS measures; Tom served as co-chair from 2002 to 2009.

Tom frequently lectures on the patient experience and strategies for improving the value of health care, and has authored more than 260 academic articles and three books, Chaos and Organization in Health Care and Eugene Braunwald and the Rise of Modern Medicine. In November 2015, Tom released his third book, An Epidemic of Empathy in Healthcare: How to Deliver Compassionate, Connected Patient Care That Creates a Competitive Advantage, published by McGraw-Hill.

Named in his honor, the Thomas H. Lee Award for Excellence in Primary Care is given each year to recognize a primary care physician at Brigham and Women’s Hospital who meets the needs of his or her patients exceptionally well.

Tom holds a bachelor’s degree in history and science from Harvard College, a medical degree from Cornell University Medical College and a master’s degree in epidemiology from the Harvard School of Public Health. He lives in Milton, Mass., with his wife, Dr. Soheyla Gharib, who is Chief of Medicine at Harvard University Health Services. The couple has three daughters.


Nell joined Press Ganey in 2010. As Press Ganey’s President and Chief Operating Officer, Nell oversees Corporate Strategy and Product Management in addition to the Research & Analytics. In her role as a member of Press Ganey’s senior management team, Nell is responsible for architecting the company’s forward-looking strategy, driving innovation and enhancements across the solution suite, while ensuring that the company continues to meet client expectations.

In her previous role as SVP for Clinical and Analytic Solutions, Nell helped reshape Press Ganey’s Research & Analytics function and Clinical Solutions strategy. This included overseeing the acquisition and integration of the National Database of Nursing Quality Indicators (NDNQI), and the design and delivery of Press Ganey’s Nursing Excellence Solution.

In prior roles at Press Ganey, Nell has held responsibility for Press Ganey’s Knowledge Management and Health Policy functions, overseeing a team of subject matter experts and developing new channels and platforms to connect clients with high value, strategic content.

Prior to Press Ganey, Nell spent 16 years at the Maryland Hospital Association’s Quality Indicator Project, the industry’s pioneer provider of quality measures reporting and advisory services. Under her leadership as the QI Project’s vice president for business development, Nell ran marketing, communications and strategic partnerships. Nell started her career at The Advisory Board Company, a Washington DC-based healthcare management consulting firm.

With 30 years of industry experience, Nell’s expertise includes accountability reporting, health care business strategy, and using cross-domain analytics to improve outcomes. She is a sought-after speaker, addressing a broad range of topics including differentiating practices of top performing hospitals, strategies for improving the patient experience, and the impact of caregiver experience on patient outcomes.

Nell is a Board Member for the Hospital for Consumptives of Maryland and serves on the Parent Advisory Council for the Greater Baltimore Medical Center. She also serves as a trustee for the WPW Foundation, a charitable organization which provides grants to nonprofits serving vulnerable women and children. Nell is a member of the American College of Healthcare Executives (ACHE).

Nell holds a BA from Connecticut College and an MBA from Johns Hopkins Carey Business School. She lives in Baltimore, MD with her husband and three daughters.

cassandra-willis-abnerCASSANDRA WILLIS-ABNER

Cassandra (Casey) joined Press Ganey in 2020 as Chief Human Resources Officer, a position to which she brings significant experience driving culture transformation. In this role, Casey is responsible for leading Press Ganey’s talent management and human resources functions, as well as initiatives aimed at improving associate diversity, equity, and inclusion. Additionally, Casey will lead development of workforce engagement and equity strategies to help health care organizations measure and improve the caregiver experience.

Casey’s more than 25 years of experience in health care inform her expertise in culture, quality care, patient experience, employee and provider engagement, profitable growth, and value optimization leveraging executive coaching and lean management improvement approaches.

Prior to her role at Press Ganey, Casey led a distinguished career in leading health care systems including the University of Michigan Health System and Trinity Health. At Trinity Health, she served as Senior Vice President, Diversity and Inclusion and Chief Experience Officer; in these roles, she led the design, development, and implementation of the system’s diversity, equity, and inclusion (DEI) strategic model and systemwide plans. She also served on the Human Resources Executive Committee that transformed the HR function to a centralized model. Casey was the first African American woman to serve on Trinity Health’s executive leadership team.

Casey earned a bachelor of arts degree in organizational psychology and a master’s degree in health services administration from University of Michigan, Ann Arbor.

Greg_Freiberg_Management_pageGREGORY W. FREIBERG

Gregory W. Freiberg joined Press Ganey in 2020, bringing more than 30 years of experience working in finance at leading global technology companies. In his role as Chief Financial Officer, Greg is responsible for corporate development, financial planning, reporting, tax, and treasury.

Greg has 24 years of experience as a CFO for public and private companies, successfully building relationships with employees, boards, investors, banks, oversight agencies, private equity funds, and clients. This experience has culminated with the creation of more than $2.5 billion of equity value while serving as CFO. Greg has closed more than 50 acquisitions during his career and established and run businesses in 17 countries. 

Most recently, he was CFO of Outcome Health, a Goldman Sachs–sponsored digital health care company focused on reinventing the point of care to facilitate better outcomes for patients, their loved ones, and health care professionals.

Prior to that, he served simultaneously as the CFO of New Media Investment Group and as a Managing Director in Private Equity of Fortress Investment Group, a leading and highly diversified global investment manager with over $55 billion of assets under management. At New Media, Greg led the company through a Direct Public Listing and several subsequent offerings raising more than $1.4 billion growing the organization to $1.6 billion in revenue with more than 11,000 employees.

Greg served in the Army National Guard for nine years, rising to the rank of Captain and Infantry Company Commander. He holds a bachelor's degree in business administration from the University of South Dakota and a CPA certificate (inactive) in the state of Nebraska. Greg has served on the Board of Directors for the United Way of Greater St. Louis and for telecom service providers in Hong Kong, Japan, Korea, and the Philippines.

Devin_Anderson_2019DEVIN J. ANDERSON

Devin J. Anderson joined Press Ganey as general counsel and corporate secretary in 2012. In this role, he is responsible for all legal, contracting, licensing, and compliance aspects of Press Ganey’s business operations and corporate development activities.

Anderson brings more than 22 years of experience advising privately held and publicly traded companies in all aspects of corporate and securities law, as well as regulatory, compliance, and corporate governance matters. Prior to joining Press Ganey, Anderson served as the chief legal officer of Medco International B.V., the international division of Medco Health Solutions, Inc., headquartered in Amsterdam, the Netherlands. In that role, he oversaw and managed all legal and regulatory aspects of Medco's business operations and corporate development initiatives in Europe. Previously, he served as chief counsel of a Medco subsidiary, Liberty Healthcare Group, and oversaw all legal and regulatory aspects of Liberty’s mergers and acquisitions, business development, and operational efforts.

Prior to his tenure with Medco, Anderson served as the executive vice president, general counsel, and secretary of PolyMedica Corporation, where he oversaw all legal and regulatory aspects of PolyMedica's corporate strategy and business development initiatives, as well as advising the company on all aspects of corporate and securities law and corporate governance matters. Prior to that, he worked at the law firms of Hale and Dorr LLP (now WilmerHale) and Pierce Atwood LLP.

Anderson earned a BA degree in political science from the University of Maine and a JD degree from Boston University School of Law.