Management Team

James F. Chen

Chairman, Chief Executive Officer, Founder

Mr. Chen founded DrFirst and serves as the CEO and chairman. He is a seasoned entrepreneur with a strong technology background and experience in starting and leading technology-related businesses. Mr. Chen successfully founded and served as the CEO of V-ONE Corporation, a NASDAQ-listed provider of virtual private networking (VPN) software that is used extensively in many industries, including government, financial services, healthcare, and automotive. Mr. Chen has been granted five U.S. patents on Internet security products. Prior to founding V-ONE, Mr. Chen worked for many years in increasingly senior positions at Intelsat and in the nuclear power industry. Mr. Chen received a B.S. in Electrical Engineering from Georgia Tech and received his M.S. in Computer Science from George Washington University.

Edward Lee

Chief Administrative Officer, Co-Founder

Mr. Lee is a co-founder of DrFirst and, in his role as chief administrative officer, oversees the non-sales operations of the company with a specific emphasis on product development, technical operations, and human resources. Prior to joining DrFirst, Mr. Lee served as vice president and special advisor to the president of TYC Associates, Inc., a leading systems integrator and software developer. Over his twenty year career, Mr. Lee has managed the operation of large scale business and scientific applications, deployed web-based technology used in mission critical systems, and performed advanced information system design, development, and implementation of applications on enterprise, departmental, and desktop platforms. Mr. Lee has a B.S. in Electrical Engineering from the University of South Carolina and a M.S. in Electrical Engineering from the Virginia Polytechnic Institute.

Jieh-Shan Wang Ph.D.

Chief Technical Officer, Co-Founder

Dr. Wang, also a co-founder of DrFirst, has over 20 years of experience in both computer software and hardware development. Prior to joining DrFirst in 2000 as chief technology officer, he served as CTO for V-ONE Corporation, where he was responsible for developing the advanced security algorithms that were the basis for V-ONE’s groundbreaking VPN products. Dr. Wang formerly held senior computer engineering positions at Bell Labs and Intelsat. He received his B.S., M.S., and Ph.D. in Physics from the University of Maryland.

G. Cameron Deemer


Mr. Deemer serves as DrFirst’s president and brings more than 20 years of healthcare industry experience to this position. He joined DrFirst in 2004 as the director of product management before being appointed general manager in 2005 and president shortly thereafter. Since joining DrFirst, Mr. Deemer has played an instrumental role in formalizing and driving improved business processes, while developing new technology strategies to leverage the benefits of e-prescribing and other DrFirst platform services for providers, hospitals, payers, and other healthcare stakeholders. He has also been a strong proponent of promoting interoperability in the healthcare industry by sharing clinical data between systems. Prior to joining DrFirst, Mr. Deemer was assistant vice president of product management for PCS Health Systems/AdvancePCS and also led the e-prescribing and practice management product strategy for NDCHealth.

George Pappas

Chief Operating Officer

George Pappas brings more than 20 years of IT experience across diverse industries to DrFirst, where he oversees the company’s operational functions, sales, and customer support efforts. Prior to joining DrFirst, Mr. Pappas served as the chief operating officer for Motionsoft, Inc., where he successfully re-built and realigned key business models and activities to drive revenue growth. Mr. Pappas previously held several C-Suite level positions in industries including:, higher education services, internet security, software, and financial services. He earned a B.S. in CS/MIS/International Management from Boston University.

David Samuels

Chief Financial Officer

David A. Samuels is a seasoned financial executive who brings to DrFirst more than 20 years of broad-based financial and business experience with publicly traded, venture-backed and privately held businesses, with revenues ranging from pre-revenue to over $1B. He has successfully completed more than $300M of debt and equity financings, including initial capitalizations and public offerings, and has served as a change agent leading initiatives in M&A, business restructuring, complex financings and operational improvements. He has extensive experience with technology focused businesses, working with company founders and board members to create and protect shareholder value.  Mr. Samuels has held CFO roles in a variety of technology-driven businesses during the past fifteen years.  Mr. Samuels holds an MBA in Finance and Investments from The George Washington University, and a BS in Accounting, magna cum laude, from the University of Connecticut.  Mr. Samuels is a recipient of the NVTC Greater Washington Technology CFO Award for Community Service, a finalist for CFO of the Year in the Emerging Growth Company category, and was named a CFO of the Year by the Washington Business Journal in July 2013. 

Brandon Brylawski M.D.

Chief Architect

Dr. Brylawski is a board-certified internist with 23 years of experience in computer software development. Prior to joining DrFirst, he was the primary developer for the PubMed project at the National Library of Medicine, which provides the world’s most comprehensive database of medical data. He also designed and developed the software for OMIM (Online Mendelian Inheritance in Man), the comprehensive compendium of human genetics for Johns Hopkins University, and worked on many smaller projects designed to bring medical and biological information to the provider and research community. Dr. Brylawski received a B.A. degree from Johns Hopkins University, and the M.D. degree from Tulane University.

At DrFirst, Dr. Brylawski designed and built the Rcopia e-prescribing application and the Payer Engine service for eligibility and drug history information. He designed the OneStop identity verification platform and many components of the Akario secure text messaging system and the Patient Innovations compliance and adherence system.


Thomas E. Sullivan M.D.

Chief Strategic Officer

Thomas E. Sullivan, M.D is a board-certified specialist in cardiology and internal medicine with over 40 years of clinical practice. He currently works for DrFirst and sees patients part time in Massachusetts. Dr. Sullivan’s expertise in the application of information technology to health care has helped to create an international standard (ASTM) for the exchange of medical record information called the Continuity of Care Record (CCR). With AMA, he was founding chair of their e-Medicine Advisory Committee, worked with the Physician Consortium for Performance Improvement, represented the AMA and helped create the Physician EHR Coalition and is past chair of the AMA Council on Medical Service. Dr. Sullivan is the physician author of the TEPR Clinical Documentation Challenge. He received the Massachusetts Health Data Consortium’s annual “Investing in Information” award and the Essex County Medical Society “Lifetime Achievement Award” in 2010. He gave Congressional testimony on the impact and value of e-prescribing, and since 2004 has been on the senior management team at DrFirst. DrFirst has been a national pioneer in DEA sanctioned e-prescribing of controlled substances. He is also helping the US Dept. of Commerce as the current Chair of the Healthcare Industry Committee that deals with emerging strategies for “Trusted Identities in Cyberspace.”

Dr. Sullivan is a past president of the Massachusetts Medical Society, and was an associate medical director for Blue Cross Blue Shield of Massachusetts for 11 years. He recently completed his 10 year membership on the Mass Medical Society Committee on Publications, overseeing the New England Journal of Medicine and other publications, and is active on the Committee on Information Technology. He is a recent past chair of the Confidentiality and Security Steering Committee at Partners Healthcare System in Boston and is a past chair of Tobacco Free Massachusetts.

Dr. Sullivan graduated from Holy Cross College with an AB in French, having spent a year at the Sorbonne. Pre-med studies were pursued at Harvard and Columbia, and he received his MD from Jefferson in Philadelphia. Dr. Sullivan pursued his Internal Medicine and Cardiology training at St Vincent’s in New York and Tufts New England Medical Center in Boston. He also served in the US Navy as LCDR at the Naval Hospital in Boston/Chelsea during the Vietnam era.

Peter N. Kaufman M.D.

Chief Medical Officer

Schooled at MIT, Dr. Kaufman nurtured a strong interest in medical informatics while a Bowman Gray School of Medicine faculty member. After entering private practice he founded PiNK software in 1996 to produce EMR software, later becoming DrFirst’s chief medical officer upon its founding. He lectures nationally on various healthcare IT topics, and as a board certified gastroenterologist, he continues a limited clinical practice. Dr. Kaufman is a member of the Health IT Standards Committee, Privacy and Security Workgroup for ONC (Office of the National Coordinator for Healthcare Information Technology). Representing the American Gastroenterology Association’s (AGA), Dr. Kaufman is a delegate to the AMA and was the co-chair of the Physicians Electronic Health Record Consortium (PEHRC). He has participated on workgroups at CCHIT (stand-alone e-prescribing), HIMSS (e-prescribing), and NCPDP (e-prescribing).

Meriellen Cain

Chief Information Officer

In her role as chief information officer at DrFirst, Ms. Cain brings more than 20 years of experience in senior technology leadership roles for healthcare software and Fortune 500 financial services companies, and has built over 15 commercially-used software products.  Before joining DrFirst, Ms. Cain was chief executive officer for Suncoast Solutions, a healthcare IT company.  Prior to that, she served as vice president of global technology at Goldman Sachs, senior vice president of business technology at Raymond James, and held senior roles at IBM Global Services and Pricewaterhouse Coopers.   She has a Bachelor’s Degree in Business Administration and Information Systems from Wilfrid Laurier University.

Mike McClure

Executive Vice President

Michael McClure is executive vice president of DrFirst, currently leading all national and international business development activities for the company.  He has been with DrFirst since 2003, and has been instrumental in the establishment of the company’s sales and support structures, including local sales, national sales, and customer services.  As a sales and business development innovator for DrFirst, Michael has helped DrFirst establish a customer ecosystem that includes more than 700 hospitals and other acute care organizations, 300 EHR partners, and 45,000 ambulatory physician users, and which includes many of the most prominent healthcare companies in the country, such as Henry Ford Health Systems, GE and Christus Health.  From 1994 to 2003, Michael was vice president and general manager of the Physician Services Division at NDCHealth, a leading software manufacturer of Windows-based physician practice management systems.  During his tenure at NDCHealth, he was heavily involved in the deployment of electronic prescribing services to physicians and supervised the development and deployment of a physician-based electronic prescribing system which was used to send the first electronic prescription from a physician’s office to the NDCHealth pharmacy network (later to become the Surescripts network).  Mr. McClure holds a BS in Business Finance, from Brigham Young University.


Zachary Fox

Executive Vice President

As executive vice president, Mr. Fox leads corporate development activities for DrFirst to build and strengthen the company’s business channels.  Prior to his current role, Mr. Fox served as general  manager of the Partner Programs division where he was responsible for the success of the company’s products and services with third-party healthcare information technology (HIT) companies.  Under his leadership, DrFirst became the clear market leader delivering services to over 330 EMR/EHR, HIS and HIT companies.  Mr. Fox joined DrFirst in 2004 serving as director and then vice president of Payer Relations leading DrFirst to its position as the number one company in the US delivering large scale e-prescribing programs to regional and national payers.  He’s spent 21 years in IT serving in various sales, channel management and executive leadership roles.  His past 15 years were focused exclusively in healthcare IT working directly with providers, hospitals, payers, resellers and HIT companies.  Mr. Fox earned undergraduate degrees in Business and English from Westmont College.  He spends his ever-elusive spare time living new adventures with his four kids and wife Angie.


Richard Cohan

President, Patient Innovations

As president of the Patient Innovations Division, Mr. Cohan is focused on building and leveraging solutions focused on delivering new approaches to achieving positive patient outcomes through adherence and decision support programs proactively delivered at the point-of-care. For over 25 years, Mr. Cohan has successfully led and collaborated with Fortune 1000 companies in diverse segments of health information technology. Prior to joining DrFirst, Richard was a founder at CareSurveys, a patient engagement company focused on patient satisfaction and quality measurement. He also brings 18 years of industry experience from serving in a number of senior executive roles at NDCHealth. Under his leadership, NDCHealth was able to build and grow its claims processing and practice management businesses to national recognition and industry leadership. After his tenure at NDC, Mr. Cohan held a senior management position at WebMD and subsequently led two Inc.5000 startups, as CEO of Logical Images, a clinical decision support company and ENABLE Corporation, a healthcare supply chain company, and has been a key Advisor and Board member to a number of early stage companies. Mr. Cohan holds an M.B.A. from the Fox School of Business at Temple University, and an undergraduate degree from Syracuse University.

Brad Block

President, The IN Group

As the president of The IN Group within DrFirst, Mr. Block oversees a wide spectrum of products and services that serve the hospital space. Mr. Block joined DrFirst in early 2013 with over 25 years of experience in the healthcare sector. His diverse background includes playing key roles in the provider setting as CIO, practice leader, and sales executive, and in the vendor setting as a vice president. As an active participant in the healthcare technology realm, serving on advisory boards and as faculty in healthcare related conferences across the nation, Mr. Block has a wealth of knowledge and experience. Prior to joining DrFirst, he served as the VP of consulting services at NextGen Healthcare Information Systems for close to 3 years, and was also the chief information officer for Doylestown Hospital for 11 years.

Kunal Agarwal

Vice President, Product Solutions

Kunal Agarwal brings to DrFirst over a decade of leadership experience in software development, EMR/HIS integration and product solutions in Acute, Outpatient and LTPAC. Mr. Agarwal has been an industry advisor on various vendor strategic partnerships, evaluated and optimized customer collaborations and implementations to drive sales to optimum revenue growth and is now instrumental in supporting our executive team to spearhead the overall execution of our vision around providing end-to-end product solutions and management while elevating patient safety, customer satisfaction and successful outcomes. He is actively driving our new business growth through greater industry insights, customer advocacy and reference-ability. Mr. Agarwal brings with him experience from a variety of significant players in the healthcare IT space, having previously worked for Epic, Lipix (now Healthix), NYeC, and GNYHA/CCLC. Mr. Agarwal holds a Master of Science (MS) in Computer Science from University of Southern California, Los Angeles, CA, and a Bachelor of Engineering in Computer Engineering from the  University of Pune, India. He has been the recipient of several industry awards for innovation, dedication and customer excellence such as “The Hanging Gardens of Babylon” for creativity and effort in improving products and/or processes (changing how we work) and “The Lighthouse of Alexandria” for excellence in customer support (helping a customer find their way) at Epic Systems Corporation, as well as the “Outstanding Academic Achievement” award at University of Southern California.

Irene Froehlich

Vice President, Corporate Development and Communications

Irene was one of the original pioneers in the healthcare technology industry since 2000, shaping the national reputation of DrFirst through the utilization of innovative techniques, cutting-edge marketing, and social media strategies. Irene has worn many hats at DrFirst over the past 15 years, originally serving as a Marketing Specialist, progressing into the roles of Director of Account Management, Director of Inside and Enterprise Sales, Director of Marketing and PR, Sr. Director of Corporate Communications, and now the VP of Corporate Development and Communication. She has developed a broad understanding of the needs of healthcare stakeholders, was a key contributor in the marketing of all our product lines, and has a proven track record of creating, implementing, executing, and managing a diverse variety of strategic initiatives in both B2B and B2C markets. Recognizing the importance of corporate culture, succession planning, and leadership development in achieving long term employee satisfaction and world-class performance, Irene has expanded her focus to include organizational development with the HR team in addition to continuing to manage internal/external communications, investor relations, and maintaining quality assurance around the DrFirst brand.


Stu Ballatt

Vice President, Strategic Programs Management

Stu Ballatt is an award-winning sales and marketing leader with 25 years of experience directing corporate, brand, product and sales marketing activities for B-to-B, B-to-C and media businesses. Prior to joining DrFirst, Mr. Ballatt was founder and managing partner of Working Artist Enterprises, a boutique marketing consultancy serving a diverse range of clients in business services, mobile, content production and entertainment. He was previously senior vice president of marketing and research and executive committee member for Screenvision, a leading cinema advertising company, and also served as chairman and president of the Cinema Advertising Council, an industry-wide non-profit trade organization for the cinema advertising industry. Prior to Screenvision, Mr. Ballatt was vice president of marketing and sales development for NBC Universal, overseeing strategic positioning and sales marketing activities for broadcast, cable and web properties in the news, sports and entertainment genres, and founded NBC TV Network’s first integrated media sales and marketing division, NBC Connect. Prior to NBC, Mr. Ballatt was director of marketing and webmaster for Berlitz International, where he led marketing initiatives for the company’s education, translation, publishing and retail divisions in North America. Mr. Ballatt holds a BS in Marketing from Drexel University.


Thomas Lin

Vice President of Software Development

Thomas Lin is responsible for satisfying the development and support needs of DrFirst’s diverse base of 128,000 users. During his tenure at DrFirst, Mr. Lin helped architect and structure several of the company’s core flagship products to establish a high standard of product excellence in the market place. Prior to joining DrFirst, Mr. Lin served in numerous management positions, leading software designs, product development and system integrations. Mr. Lin holds a B.S. in Biomedical Engineering and an M.S. in Computer Science from Johns Hopkins University.

Senthil Dhandapani

Vice President of System Operations

Senthil Dhandapani provides strategic business-continuity planning for multiple operating, business and functional units within DrFirst. Mr. Dhandapani brings more than 10 years of experience managing the software development cycle with hands-on experience in analysis, design and implementation of various applications and databases. After receiving his M.S. in Computer Science from the University of North Dakota, Mr. Dhandapani went on to serve as a MES Specialist at Qimonda North America Corp. where he designed and developed several systems in efforts to reduce IT dependencies and to increase yield.

Adrianna Iorillo

Vice President of Professional Services

Adrianna has over 25+ years of experience in healthcare, and brings her deep experience in successfully implementing enterprise wide healthcare technology implementations to DrFirst. Having worked across the many spectrums of the healthcare IT industry from insurance provider, vendor, hospital and ambulatory facilities,  she brings her dedication to strategic partnerships and collaboration. She understands the unique and complex issues faced by health providers. In her career, Adrianna has led and created divisions that enabled nationwide implementations of enterprise systems both in the practice management, revenue cycle management and electronic health care systems. She will bring that experience to  lead the Professional Services teams to further ensure quality deployments from project planning, training and post implementation account management services to the DrFirst customers. Her Previous career highlights include WebMd/Emdeon, BCBS of SC and OH, Dell and Medical Manager.

Seth Terbeek

Vice President of Business Development

Seth Terbeek currently serves as vice president of business development for DrFirst. In the past, Mr. Terbeek has held positions at DrFirst ranging from vice president of operations, where he had direct responsibility for customer integration, implementation, and support, to Tier 1 support to director of integration services, giving him a broad range of experiences that have allowed him to contribute much throughout his tenure with the company. Mr. Terbeek has a passion for excellent customer service, strongly believes in coaching future leaders from within, and was the driving force behind the design and implementation of an internal corporate culture training program. Mr. Terbeek first joined DrFirst after receiving his B.T. in Web Development from SUNY Canton in Northern NY.