Governance
Board of Directors
ASHDS is governed by a volunteer board of practicing leaders in health data science, elected by the membership.
Officers
Dr. Priya Ramaswamy, MD, MS, FHDS
President (2025–2027)
Chief Medical Information Officer, Meridian Health System
Priya leads a 14-hospital network's clinical data strategy and co-founded the Society's first health equity working group in 2017. She is a practicing internist who still keeps half a day a week in clinic, which she says keeps her honest about what data work is actually for.
Marcus Bellweather, PhD, FHDS
President-Elect (2025–2027)
Professor of Biomedical Informatics, Cascadia University
Marcus runs a research lab focused on predictive risk models for chronic disease and has mentored more than 40 graduate students into the field. He is known on the board for asking the question everyone else is avoiding.
Yuki Tanaka, MPH, CHDS
Secretary-Treasurer (2024–2026)
Director of Population Health Analytics, Brookline Medical Center
Yuki built her hospital's analytics function from a single dashboard into a 22-person team and now oversees the financial stewardship of the Society's certification and journal programs. She is meticulous about budgets and patient when explaining them.
Dr. James Okonkwo, MD, MBA, FHDS
Immediate Past President (2025–2027)
Senior Vice President of Clinical Intelligence, Northgate Care Partners
James served as President from 2023 to 2025, during which membership crossed 6,000 for the first time. He spent two decades in emergency medicine before moving into informatics leadership and brings that pace to everything he does.
Directors
Dr. Aisha Diallo, MD, MS, FHDS
Director (2024–2027)
Associate Chief Quality Officer, Riverstone Children's Hospital
Aisha works on algorithmic safety in pediatric care and led the development of the Society's model documentation guidelines. She is a frequent and clear-eyed voice on what can go wrong when models meet bedside reality.
Daniel Hofstetter, MS, CHDS
Director (2024–2026)
Lead Data Engineer, Halcyon Health Plans
Daniel manages the data infrastructure behind a regional insurer covering 1.8 million members and represents the payer side of the membership. He is the resident expert on the unglamorous plumbing that makes everything else possible.
Rosa Calderón, MPH, CHDS
Director (2025–2028)
Director of Community Health Informatics, Valle Verde Community Health Network
Rosa designs analytics for federally qualified health centers serving largely uninsured and rural populations. She joined the board to keep the Society's work useful to organizations without large data budgets.
Dr. Wei Chen, PhD, FHDS
Director (2025–2028)
Principal Research Scientist, Lumen Health AI
Wei works on clinical natural language processing and large language model evaluation, and he co-chairs the LLMs in Care special interest group. He is careful to separate what the technology can do from what vendors say it can do.
Tobias Andersson, MS, CAHDS
Director (2024–2027)
Senior Healthcare Analyst, Pinewood Regional Medical Group
Tobias is an early-career director who came up through the analyst ranks and advocates for clearer pathways into the profession. He is the board's most reliable advocate for the people three rungs below the people usually in the room.
Dr. Fatima Al-Rashid, MD, MPH, FHDS
Director (2025–2027)
Chief Health Officer, Sable Digital Health
Fatima leads clinical strategy at a digital health startup and previously ran quality improvement at a large academic medical center. She bridges fast-moving product teams and slow-moving evidence, and translates well in both directions.
Gregory Mbeki, PhD, FHDS
Director (2024–2026)
Professor of Public Health, Trent Valley University
Gregory studies health disparities using large administrative datasets and serves as faculty liaison for the student chapters. He has a gift for making a roomful of clinicians care about a methods footnote.