Our team
Daniel J. O’Donnell
Dan O’Donnell retired from the United States Marshals Service after a distinguished 25-year federal law enforcement career. Dan served in many senior executive positions including Chief of the Prisoner Operations Division at U.S. Marshals Headquarters.
Dan also served as Chief of Staff of the Florida Department of Corrections. He is currently the managing partner in a specialty consulting partnership working with and advising private and public sector organizations.
Dan is the Founder, and current member of the Board of Directors, of the U.S. Marshals Survivors Benefit Fund. The Fund is a 501(c)(3) non-profit charity which provides line-of-duty death and education benefits to the surviving family members of fallen U.S.Marshals Service employees and other law enforcement officers serving as Special Deputy U.S. Marshals.
Dan is also the Founder and Chairman of the Support Our Sheriffs Foundation. The Foundation is a nonprofit 501(c)(3) charity with a mission to provide essential resources, training, and programs which enhance the effectiveness, safety, and well-being of Sheriffs, their employees, their families, and the communities they serve. The Foundation also provides financial support to the families of fallen Sheriffs, their deputies, and employees throughout the United States.
Dan is the Chairman of digitalXhealth’s Board of Directors and serves as the company representative to Federal, State, and local government agencies.
Co-founder & Chairman
Aman Bhatti, MD
Dr. Bhatti is a healthcare executive with a proven track record of driving innovation and value creation at the intersection of healthcare and technology. Prior to founding digitalXhealth, Dr. Bhatti served as CEO of Cumulus Neuroscience, a UK-based digital biomarker company advancing the development of precision CNS medicines. Dr. Bhatti led the company to being named to Fast Company’s prestigious list of the World’s Most Innovative Companies of 2024 after securing FDA-clearance of the 3x award-winning Cumulus at-home EEG headset in the previous year.
Prior to Cumulus, Dr. Bhatti founded AliveCor BioPharma, a division of AliveCor, a leading Silicon Valley based startup developing cutting edge cardiovascular solutions. Dr. Bhatti has over a decade of senior experience within the consumer healthcare industry, having previously served as the Global Head of Digital Medicines at Sanofi Consumer Health where he led digital transformation initiatives globally to improve patient outcomes with companies like Google, Facebook, and Plug&Play. His previous roles also include leading medical teams at Reckitt, Novartis, and GSK (now Haleon) launching, innovating, and globally expanding market presence of several major OTC brands including Mucinex, Flonase, Otrivin, and Nicorette.
Dr. Bhatti’s passion is to bring to life innovative digital solutions to improve health access and equity within underserved communities which has been fueled by his rich history of working within leading consumer healthcare companies. Dr. Bhatti also serves as a strategic advisor to multiple digital health startups allowing him to stay up-to-date on the latest trends and innovations in healthcare.
Co-founder, Chief Executive Officer
Summar Mir
Mr. Mir is a senior healthcare executive with over a decade of operational and business development experience at LabCorp. Prior to founding digitalXhealth, Mr. Mir led LabCorp’s Northeast Correctional Healthcare segment focusing on Federal and State prisons as well as county jails.
Mr. Mir has a passion for improving reentry experiences and services, specifically focused on transforming education, workforce development, and healthcare. While at LabCorp, Mr. Mir gained notoriety for developing the nation's first reentry phlebotomy training program for women returning to the community from prison. By working directly with Former New Jersey Governor McGreevey and the NJ Reentry leadership team, Mr. Mir was able to develop and launch the program, leading the collaboration between NJ Reentry Corporation, Hudson County Community College, and LabCorp which provided the clinical internship and possible path to employment for participants.
Mr. Mir also serves as the Chief Strategic Advisor for New Beginnings, a multi-state mental health outpatient patient practice providing remote and in-person psychiatric care and counseling to underserved communities throughout Pennsylvania, New Jersey, New York and Texas.
Co-founder & President
Carla Zema, PhD
A former Kerr White Visiting Scholar with the Agency for Healthcare Research and Quality with decades of experience in population health, health economics, outcomes research, health care quality, and patient-centered care. Her experience across diverse settings including corporate, nonprofit, and government, drives her unique expertise in improving care through innovation, effectiveness, and quality improvements in health care. She continues to lead efforts that focus on strategic development, research and assessment, as well as implementation and is currently focusing on how innovations can both improve care, increase efficiency and lower costs.
At dXh, Dr. Zema leverages her background in HEOR to conduct data analytics to determine the impact of digital solutions on health outcomes, cost savings, and cost avoidance. Dr. Zema is also responsible for clinical research programs through foundation, federal, and state grants.
Chief Scientific Officer