Robin J. Thomashauer

Executive Director

Robin Thomashauer is the executive director of CAQH, a non-profit alliance that is the leader in creating shared initiatives to streamline the business of healthcare.  She has overseen the strategy and operations of the organization since its inception, over 15 years ago.

Under her direction, CAQH has collaborated with health plans, hospitals and healthcare providers to develop, implement, and manage initiatives that reduce costs and eliminate unnecessary administrative burden. These efforts include the Committee on Operating Rules for Information Exchange (CAQH CORE®), CAQH ProView™, SanctionsTrack®, COB Smart®, EnrollHub™, and the CAQH Index™.

Robin has more than 30 years of broad experience in strategy, managed care operations and hospital administration.  Before joining CAQH she was a director in the health care practice at PricewaterhouseCoopers (PwC), with a primary focus on payer organizations.  Prior to her position with PwC, Robin held senior management positions with Kaiser Permanente, as well as in several teaching hospitals.

Robin holds an M.H.S.A. in Health Care Administration from The George Washington University, and a B.A. in Social Sciences from Colgate University.  She is a Diplomate in The American College of Healthcare Executives.

Gwendolyn Lohse

Deputy Director, Managing Director, Committee on Operating Rules for Information Exchange

Gwendolyn Lohse is the Deputy Director, and Managing Director of the Committee on Operating Rules for Information Exchange (CORE) at CAQH. CAQH CORE creates national business rules to govern the electronic exchange of administrative data, regardless of technology. To demonstrate their adoption of the CAQH CORE Operating Rules, entities must complete a certification process that verifies that their IT systems and products are in compliance with the rules.

Gwendolyn led the design and implementation of CORE, and oversees the day-to-day aspects. Under her leadership, over 140 organizations, including health plans, hospitals, vendors, CMS, and other healthcare industry leaders, have joined CAQH CORE. CORE participants collectively cover approximately 75 percent of the commercially insured plus Medicare and some state-based Medicaid beneficiaries. Numerous leading national healthcare organizations have completed CORE certification or become CORE Endorsers.  

Prior to joining CAQH, Gwendolyn was a Manager at PricewaterhouseCoopers (PwC), serving both domestic and international healthcare clients, and an associate within Johns Hopkins’ internal consulting unit.

Sorin Davis

Managing Director, Marketing and Business Development

Sorin Davis is the Managing Director of Marketing and Business Development at CAQH. With more than 35 years of experience in health insurance, healthcare management, benefits administration, sales and marketing, Sorin has served the healthcare industry from many perspectives. 

During his tenure with CAQH, he was responsible for the national launch of the CAQH Universal Provider Datasource initiative, which is now CAQH ProView. Previously, Sorin was executive vice president of MultiPlan, and CEO of its subsidiary, CareAway USA. He was director of labor sales and account management at Empire Blue Cross, and director of claims administration for the Amalgamated Life Insurance Company.

Sorin holds a master’s degree in public administration from New York University, specializing in health services management.

Karen Waller

Director, Communications and Marketing

Karen Waller leads strategic communications and is building the marketing program to support the growth of CAQH Solutions and initiatives. She brings more than two decades of healthcare public relations agency experience to the role, most recently as Senior Vice President at GYMR Public Relations.

Previously, Karen created and led communication and marketing programs on behalf of a range of healthcare association, non-profit, and government clients while serving in two national PR agencies, Burson-Marsteller and Porter Novelli. Her expertise includes traditional and social media relations, issues management, strategic communications planning and alliance development.

Karen holds a B.A. and MBA from the University of North Carolina at Chapel Hill.

Charlie Winters

Managing Director, Finance and Administration

Charlie Winters is the Managing Director of Finance and Administration at CAQH. With more than 25 years of experience in finance, Charlie has helped a range of organizations manage rapid growth and change. His responsibilities include finance, human resources, office services, and IT security.

He has more than 15 years of experience in the healthcare industry, including VP of Finance at Lumenos and VP of Operations Support at Value Behavioral Health. Previous to his healthcare experience, Charlie spent five years as a practicing CPA at a public accounting firm.

Charlie earned a B.B.A. in accounting from Siena College in Loudonville, New York.

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