Drawing on strong entrepreneurial, medical, technical and leadership backgrounds, Modernizing Medicine’s executive team members are innovators in their fields working together to “modernize medicine” and improve outcomes in healthcare.


Daniel Cane

CEO and co-founder

Daniel is CEO and co-founder of Modernizing Medicine. Daniel was named 2015 EY Entrepreneur of the Year®, 2013 Sun Sentinel Excalibur Awards Palm Beach Small Business Leader of the Year and honored as a Palm Beach County Ultimate CEO by the South Florida Business Journal.

Since founding the company in 2010, Daniel has led his team to raise over $85 million in funding and to employ more than 430 employees.

Daniel has led the company through two acquisitions. In 2015, the company acquired gMed, Inc. to offer a full suite of gastroenterology-specific products and services, and in 2014 acquired Aesyntix Health, Inc., enabling Modernizing Medicine to provide revenue cycle management and inventory management to its customers.

Frequently invited to speak at various forums around the State of Florida and across the country, Daniel had the honor to present with co-founder Michael Sherling at IBM Impact 2014 during the keynote “IBM Watson and the Art of Possible – Combining Cognitive Systems with Mobile.” He was the keynote speaker at the Greater Miami Chamber of Commerce’s 2015 Technology Leaders of the Year awards and participated in the first TEDxDelrayBeach event “The Human Experience” in 2013. At the United Nations (U.N.) headquarters in New York, he served as a panelist at the Economic and Social Council Civil Society Forum: “Building Partnerships in the Field of Education through Science, Technology and Innovation.” Daniel has also spoken on South Florida Technology Alliance CEO panels and at other local technology and business events.

An entrepreneur, Daniel has a BS in Applied Economics from Cornell University, where, as an undergraduate, he co-founded Blackboard Inc., raised over $100 million in venture capital and in 2004 helped take the company public on the NASDAQ (BBBB). In 2011, Blackboard was sold for $1.6 billion.

Active in the local community, Daniel serves as the Vice-Chairman of the Board at the South Florida Science Center and is on the Board of Directors of the United Way of Palm Beach County. Additionally, Governor Rick Scott appointed Daniel to the Florida Atlantic University Board of Trustees for a term beginning August 2013 and ending January 2018; in 2015 he was elected as vice chair. He is an active mentor to entrepreneurs, and a member of the Business Development Board of Palm Beach County, the Boca Chamber of Commerce and several local advisory boards.


Michael Sherling, MD, MBA

Chief Medical Officer

Dr. Michael Sherling is the co-founder and Chief Medical Officer of Modernizing Medicine. He’s responsible for developing and designing the dermatology-based software, and supervising the design of Modernizing Medicine’s other EMA specialties.

Under his leadership, Modernizing Medicine has gained approximately 30 percent of the US market share in dermatology and raised over $85 million in capital.

Michael has been a practicing dermatologist since 2006. He is currently practicing in a comprehensive skin care dermatology group in Palm Beach County, Florida. He is an expert in medical, surgical and cosmetic dermatology.

Michael is board certified by the American Board of Dermatology. Prior to relocating to Florida, he was the Associate Director of Laser Medicine and Skin Health at Brigham and Women’s Hospital in Boston. He is a leader in resident education, having been the youngest physician to serve as the Associate Residency Program Director for Harvard Medical School’s Department of Dermatology. He has several publications in peer reviewed medical literature.

Michael obtained his B.S. in Biology at Brown University with honors in 1996, his MD from Yale School of Medicine with honors in 2002, and his MBA from Yale School of Management in 2002. He received his clinical training at Harvard Medical School, where he served as chief resident in dermatology. He is licensed to practice medicine in Florida.


Karen O'Byrne

Chief Financial Officer and Chief Operating Officer

Karen serves as Chief Financial Officer and Chief Operating Officer. She oversees all financial, human resources and operations for Modernizing Medicine, and focuses on corporate strategy and planning. Karen brings more than twenty years of financial, accounting and operational experience to Modernizing Medicine. She has broad financial experience in technology-based organizations including enterprise software, B2C technology, systems integration, web hosting and managed services. She is strategically minded with a proven record of driving profit improvement, leading business growth, establishing and scaling operations and building operationally-focused teams.

Prior to Modernizing Medicine, Karen served as the Chief Financial Officer for Campus Management Corp, a software development company that provides post-secondary education institutions with administrative and academic solutions. Karen also served as Senior Director of Business Planning and Finance for Verio, Inc., an NTT America company that provides global web hosting and managed services. Karen began her career in public accounting with nine years of advisory and attestation management experience serving both public and privately-held companies across a wide range of industries.

Karen is a certified public accountant and a certified global management accountant. She holds an MBA with honors and a Bachelor of Science degree in accounting, both from the University of Florida.


Mark Fleisher

Senior Executive Vice President and General Counsel

Mark serves as Senior Executive Vice President and General Counsel. Mark has over fifteen years of experience of providing legal representation to technology companies. Prior to joining Modernizing Medicine, Mark was a partner with K&L Gates LLP, an international law firm.  Prior to K&L Gates, Mark served as Of Counsel with the firm Broad and Cassel and as an associate in the Silicon Valley offices of Latham & Watkins LLP and Wilson Sonsini Goodrich & Rosati, P.C. Mark also previously served as Director, Legal—North America for Avanex Corporation, which was a Silicon Valley based provider of photonic processing solutions. Mark received an A.B. degree from Duke University and a J.D. degree from Harvard Law School.


Joe Rubinsztain, MD

President, gMed

Dr. Joseph Rubinsztain is President of gMed, a Modernizing Medicine company. He launched gMed in August of 1997 and was CEO until September 2015. At that time he joined Modernizing Medicine’s management team after the two companies merged to create the next era of innovation for gastroenterology-specific products and services.

His vision for the future of healthcare drove his team to create the market-leading suite of gastroenterology-specific products, including an EMR system, endoscopy report writer, practice management solution, patient portal, data analytics and revenue cycle management solution. Success is evidenced by Black Book Rankings naming the EMR system the Top Ambulatory Electronic Heath Record (EHR) for gastroenterology for five consecutive years. Joe’s focused vision and strategy helps conceive new products, motivate employees and drive change while improving the healthcare industry and patient outcomes.

Prior to gMed, Joe founded R&R Comed, a pioneering EMR system company, where he was President from 1990-1995. He also served as Clinical Product Manager at Quality Systems, Inc.

Joe received his medical degree at Universidad Central de Venezuela and a certificate in strategy from Harvard Business School. He also regularly participates in several corporate and not-for-profit boards.