Meet the HealthRex Team
Our team is composed of highly skilled students, fellows, and postdoctoral scholars with backgrounds in computer science and medicine who are dedicated to advancing biomedical informatics.
​
Information on former team members can be found on the table at the bottom of the page. To learn about available positions and requirements for working with the lab, visit our Open Positions Page and FAQ.
​
Ethan Goh
Executive Director, ARiSE Network
Ethan is an Internal Medicine physician interested in potential applications of AI/ML in healthcare and clinical decision support tools.
Ruoqi Liu
Post-Doctoral Fellow
Ruoqi earned her PhD in Computer Science and Engineering from Ohio State University. Her research has centered on the intersection of AI/ML and causal inference, with an emphasis on improving causal effect estimation and enabling reliable decision-making in healthcare.
Selin Everett
Medical Student
Selin is a medical student studying how AI chatbots can best support physicians' clinical decision making.
Selina Pi
PhD Student, Biomedical Informatics
Selina is interested in combining machine learning and simulation methods to model outcomes and impacts of medical decisions.
Austin James Schoeffler
Clinical Informatics Fellow
Emergency physician and clinical informatics fellow focused on bridging industry and healthcare to evaluate, benchmark, and deploy AI tools where they matter most - at the bedside.
Imran Mohiuddin
Clinical Informatics Fellow
Hospitalist physician and current clinical informatics fellow dedicated to operationalizing innovative ideas into sustainable real-world solutions that improve outcomes for patients and clinicians.
Nicholas Marshall
Clinical Informatics Fellow
Dr. Marshall is a Pediatrics Infectious Diseases and Clinical Informatics Fellow with interests in antimicrobial stewardship, quality improvement, clinical informatics, and medical education.
Fateme Nateghi Haredasht
PhD, Postdoc Scholar
Fateme completed her PhD in Biomedical Sciences at KU Leuven, Belgium. Her research focuses on trustworthy and explainable AI for healthcare, particularly LLMs and clinical decision support systems. She develops and evaluates AI methods to ensure reliability, safety, and real-world clinical impact.
Bryan Bunning
PhD student, Biomedical Informatics Research
Bryan is interested in using informatics solutions to advance access to and execution of modern clinical trials.
Yixing Jiang
PhD Student, Biomedical Informatics
Wenyuan Sandy Chen
Research Analyst
Stanford Biomedical Data Science graduate interested in data-driven AI applications in healthcare and planning to pursue a career in medicine
Kameron Black
Clinical Informatics Fellow
Dr. Black completed his Internal Medicine residency at Oregon Health & Science University. His clinical interests include hospital medicine and geriatric medicine. Dr. Black's research interests are in the implementation of agentic AI in healthcare workflows, mitigation of bias in CDS tools, and data-driven quality improvement.
Chuk Anyaegbuna
Research Fellow
Chuk is a UK-trained physician and product manager currently at Stanford as a Harkness Fellow in Health Care Policy & Practice. His work is focused on the implementation science of clinical AI, specifically on how to bridge the gap between powerful new models and the complex realities of clinical and patient care.
Ivan Lopez
MD/PhD Student
Ivan is a medical student interesting in using informatics tools to expand equitable access to healthcare.
John Lyon Havlik
Psychiatry Resident (Research Track)
Dr. Havlik is a physician and researcher developing and applying the latest advances in machine learning and artificial intelligence to make data-driven improvements to mental healthcare and addiction care.
David JH Wu,
David JH Wu, MD
David is a Radiation Oncology resident and interested in how to evaluate and safely deploy AI tools in real-world clinical practice.
Collaborators
David Wu
Collaborator, Harvard
David is a MD-PhD pursuing his residency at Harvard Dermatology and interested in safety, alignment, and reasoning in medical AI.
Vishnu Ravi
Clinical Assistant Professor
​
Stephen Ma
Medical Informatics Director, Analytics and Evaluation, Stanford Health Care
Medical informatics leader aligning clinicians, data teams, and governance to enable data-driven decision-making and rigorous real-world evaluation of novel technologies
Kathleen Lacar
Program Manager, ARISE Network
Kathleen is an experienced RN and PM interested in driving the industry-academic bridge for responsible clinical AI development and deployment.
Former Team Members
Name Last Year Involved Role During Involvement Last Known Role
Francois Grolleau | 2026 | Post-doc fellow | Stanford Healthcare Data Scientist |
Manoj Maddali | 2025 | Clinical Research Fellow | Piedmont Healthcare |
Robert Gallo | 2025 | Medical Informatics Research Fellow | Zuckerberg San Francisco General Hospital |
April Liang | 2025 | Clinical Informatics Fellow | Stanford Hospital Medicine |
Fatemeh Amrollahi | 2025 | Post-doctoral Fellow | Machine Learning Engineer (Ford) |
Stephen Ma | 2024 | Clinical Informatics Fellow | Stanford Hospital Medicine |
Minh Nguyen | 2024 | PhD student, Biomedical Informatics | Palo Alto Veterans Institute for Research |
Grace Kim | 2024 | Computer Science Research Scientist | Johns Hopkins Medical School |
Sajjad Fouladvand | 2023 | Post-Doctoral Fellow | Janssen Research |
Checo Gonzales | 2023 | PhD Student in Biomedical Informatics | |
Ananya Vasireddy | 2023 | Undergraduate | |
Matthew Schwede | 2023 | Clinical Research Fellow | Swedish Cancer Institute |
Raphael Brosula | 2023 | Undergraduate Student | Broad Institute |
Conor Corbin | 2023 | PhD Student in Biomedical Informatics | SmarterDx |
Naveed Rabbani | 2023 | Clinical Informatics Fellow | Boston Childrens' |
Vivian Ho | 2022 | Clinical Research Fellow | Vascular Surgery Residency |
Ryan Rong | 2022 | High School Intern | Stanford Undergraduate |
Spencer Kim | 2022 | High School Intern | High School |
Laura Bravo | 2021 | PhD Student in Biomedical Informatics | Stanford Biomedical Informatics PhD Program |
Arhana Chattopadhyay | 2021 | M.D. Plastic Surgery Resident | M.D. Plastic Surgery Resident |
Samson Saju Peter | 2021 | Medical Student | Medical Student |
Wui Ip | 2021 | Clinical Informatics Fellow | Medical Director of Healthcare Data at Conference |
Birju Patel | 2021 | Clinical Informatics Fellow | Physician and Informaticist at Google Health |
Ivana Jankovic | 2021 | Clinical Research Fellow | Endocrinologist & Medical Director of Digital Technology at Anthem AI |
Maggie Wang | 2021 | PhD Student in Biomedical Informatics | Stanford Biomedical Informatics PhD Program |
Christian Rose | 2020 | M.D. Emergency Medicine | Stanford Assistant Professor |
David Ouyang | 2020 | MD - Fellow, Cardiology | Cedar-Sinai |
Jonathan Chiang | 2019 | Research Data Analyst | Research Data Analyst |
Minh Nguyen | 2019 | PhD Student in Biomedical Informatics (rotation) | Stanford Biomedical Informatics PhD Program |
Ron Li | 2019 | Clinical Informatics Fellow | Stanford Clinical Assistant Professor, Hospital Medicine |
Divya Saini | 2019 | Masters Student in Management Science & Engineering | Medical School, U Penn |
Jonathan Wang | 2019 | Masters Student in Biomedical Informatics | Medical School, UCSF |
Song Xu | 2019 | Postdoctoral Scholar in Biomedical Informatics | Microsoft |
Delaney Sullivan | 2019 | Masters Student in Computer Science | Medical School, UCLA |
David Morales | 2019 | Masters Student in Computer Science | Industry, Uber |
Santhosh Balasubramanian | 2018 | Staff Engineer | Scientific Product Engineer at Notable Labs |
Kojo Osei | 2018 | Masters Student in Biomedical Informatics | Health Tech Startup |
Tymor Hamamsy | 2018 | Masters Student in Biomedical Informatics | Graduate School, NYU |
Jason Ku Wang | 2018 | Undergraduate in Mathematical & Computational Science | Medical School, Harvard |
Shivaal Roy | 2018 | Masters Student in Computer Science and Artificial Intelligence | Research Engineer |
Ben Marafino | 2017 | PhD Student in Biomedical Informatics (rotation) | Stanford Biomedical Informatics PhD Program |
Gustavo Chavez | 2016 | Undergraduate in Human Biology | Medical Student at Stanford |
Muthuraman Alagappan | 2016 | Medical Student | Internal Medicine Resident at Beth Israel-Deaconess |