Our Leadership

ArborMetrix brings together expertise, experience, and passion at the intersection of
healthcare, technology, and business.

ArborMetrix Team Photo
Maria Siambekos, M.B.A.

Chief Executive Officer

Maria is an experienced healthcare technology executive who leads ArborMetrix in its mission to advance healthcare through data science.

Maria has more than 25 years of diverse business and leadership experience in Fortune 10 and entrepreneurial organizations. She has served as CEO, President, and COO of multiple venture-backed early- and growth-stage healthcare enterprise SaaS-based companies, including Champion Healthcare Technologies, Vynca, and Healthbox. She also has previously held corporate leadership roles at GE Healthcare, and TheraDoc (a clinical IT business owned by Hospira).

Maria began her career as a clinical scientist at The University of Chicago and as a consultant. As a consultant, she led and contributed to a breadth of strategic, operational, and clinical technology engagements for hospitals, health systems, and payers. Maria has a B.S. in Biology from Yale University and an M.B.A. from The University of Chicago Booth School of Business in Finance, Strategy, and Entrepreneurship.

Craig Lan, M.B.A.

Chief Product Officer

Craig is responsible for advancing our mission to improve healthcare through data science by establishing and implementing the vision and roadmap for our platform, associated technologies, and analytic systems.  

As a product executive in healthcare, Craig brings over 15 years of strategic thought leadership to ArborMetrix.  He has an outstanding track record of developing breakthrough solutions for healthcare stakeholders.

Craig most recently served as Sr. Vice President of Product at InVita Healthcare Technologies, a leading healthcare supply chain solutions provider, where he managed a suite of solutions that optimized supply chains.  He previously managed ICU equipment and software solutions at Hill-Rom and Hospira. 

Craig earned his B.S. in biomedical engineering and economics from Duke University, and his MBA from the Kellogg School of Management at Northwestern University.

Steve Richvalsky

Chief Financial Officer

Steve is responsible for overseeing ArborMetrix’s financial and business operations.

He is an experienced leader with nearly three decades of building great companies with exceptional teams and strong cultures. His experience includes business planning, financial management, fundraising, and operational development and execution. Prior to joining ArborMetrix, Steve served as CFO of HandyLab, a molecular diagnostic company where he guided the growth and venture financing of the company, ultimately resulting in its acquisition by Becton, Dickinson and Company (NYSE: BDX).

Previously, Steve also served as CFO of Ardesta, an industry accelerator dedicated to the development of microsystems and other small technologies. He was CFO of a life science products company through its period of rapid growth culminating in its acquisition. Early in his career he held financial management positions with several innovative technology and software companies. Steve was an audit manager at Ernst & Young and earned a BSBA in accounting from John Carroll University.

Jeffrey Pagnini

Senior Vice President, Services

Jeff leads the direction and development of our service offerings. He understands the complexities of the healthcare industry and has a strong, customer-focused attitude. These combined strengths deliver impactful results to our customers and support their long-term success.  

Jeff has over 20 years of experience in delivering healthcare software and services. Throughout his career, he has held leadership positions at several healthcare IT companies, where he built teams to provide implementation, support, and account management services.  

Prior to ArborMetrix, Jeff was Vice President, Services at InVita Healthcare Technologies, where he streamlined workflows for implementations to reduce variability and increased first call resolution rates through knowledge transfer sessions. He approaches his work with an innovative outlook that has led to the development of new service offerings by utilizing untapped skill sets. He has also held management positions with NantHealth, GE Healthcare, and was a biomedical engineer at a VA Medical Center. Jeff holds a B.S. in biomedical engineering from the University of Massachusetts.

Bradley Moore, M.P.H.

Vice President, Registry Solutions

Bradley considers registries to be so much more than data - they are living, evolving, valuable resources that drive meaningful, measurable quality improvement.

He has the experience, knowledge and passion to help our customers use our software and analytics to create impactful registries. With more than a decade of experience, Bradley has implemented technology solutions for nonprofits, government agencies, and healthcare organizations to help extend their value. He is driven to find innovative and high-impact solutions to healthcare’s most intractable issues. Previously, Bradley served as a Senior Program Manager at ArborMetrix overseeing the design and implementation of numerous projects. Currently, he works with various medical societies to help address their technology needs.

Bradley received his M.P.H. from Tufts University School of Medicine.

Rajashri Bharathan

Director, Software Engineering

Rajashri is responsible for developing and building the Software Engineering team whose efforts build the next generation of ArborMetrix technologies.

She is a skilled web development manager with experience leading teams through complex implementations of web solutions, while delivering quality-oriented results. Her passion and strength lie in creating high performing teams through personal development, trust, and communication. Rajashri has extensive industry experience including a start in front-end development before moving into managing and supporting software engineering teams. She is an expert in SDLC multiple development methodologies and is a seasoned Scrum Master.

Prior to joining ArborMetrix, Rajashri served in several leadership roles where she managed and supported teams of cross functional engineers and front-end developers, focusing on web development best practices, quality, security, development patterns, and growth and development of team members.

Rajashri holds a bachelor’s in computer sciences from PSG College of Technology, India.

Chrystal Price, M.S.

Director, Clinical Informatics

Chrystal’s passion for driving outcomes through process and analytics guides her in empowering customers to design and implement registry programs that leverage the latest health informatics and quality measurement best practices.

Her extensive industry knowledge and experience meets the evolving needs of customers as they design their data strategy ensuring goal achievement and registry success. Chrystal has 20 years of experience in data registries and regulatory advocacy.

Prior to joining ArborMetrix she served as the Associate Director of PCPI, National Quality Registry Network where she developed strategies to promote membership retention and organizational growth and educated policymakers on health informatics and quality measurement issues. She has previously held numerous roles for the American College of Surgeons including Data Analysis Coordinator, Data Analyst, and Data Operations Manager.

Chrystal holds a M.S. in Epidemiology from Michigan State University.

Misty Graham, M.B.A.

Director, Marketing

Misty leads strategic marketing initiatives that empower ArborMetrix to achieve measurable results through focused messaging, compelling content, and brand visibility.  

Misty has over 10 years of experience in marketing strategy and team building. Throughout her career she has held leadership positions at several B2B and SaaS companies with demonstrated dedication to customer experience.

Prior to ArborMetrix, Misty was the Marketing Manager at Master Fluid Solutions where she drove the development of marketing plans, oversaw new product launches, and enhanced customer experience. Misty also held a channel marketing manager position with ARO, Ingersoll-Rand where she oversaw strategic marketing initiatives and improved channel partner engagement.

Misty holds a B.A. in Organizational Management from Bluffton University, and an M.B.A. from The University of Findlay.