blog

Research Claudia Der-Martirosian, PhD Research Investigator III About Claudia Dr. Claudia Der-Martirosian is a research investigator at OCHIN. A quantitative sociologist and a health services researcher by training, she has expertise in mixed methods, incorporating both quantitative and qualitative approaches. With over 25 years of experience in population health and health-related research, she has moreRead more

LEADERSHIP Constance Owens-Jasey, PhD, MPH Investigator I About Constance Dr. Constance Owens-Jasey is a qualitative health services researcher at OCHIN. Her research is at the intersection of health equity, implementation science, and health informatics, with a focus on community-engaged approaches. She has a particular interest in the adoption of electronic health record (EHR)-based tools toRead more

Research Megan Ferber, PhD Research Development Scientist About Megan Dr. Megan Ferber is a research development scientist and behavioral health scholar at OCHIN. Megan’s research focuses on psychosocial processes surrounding weight loss interventions, ranging from lifestyle modification to bariatric and metabolic surgery. Specifically, she is interested in 1) how mental health and social relationships helpRead more

Research Pedro Rivera Ortega, MSCS Data Scientist II About Pedro Pedro Rivera is a data scientist at OCHIN. He has 20 years of experience in health care IT in the areas of data warehousing, database programming, machine learning, object-oriented programming, reporting tools, business intelligence (BI) tools, data modeling, data analysis, health information exchange and administrationRead more

Research Robert W. Voss, MS Manager of Research Analytics About Robert Robert W. Voss is the manager of research analytics at OCHIN. He is a health research analyst involved in assessing factors impacting patient health and health care delivery in the safety net population. He has over ten years of experience conducting statistical analysis andRead more

Research Rose Gunn, MA Qualitative Research Scientist About Rose Rose Gunn is a qualitative research scientist on the OCHIN research team. Since joining OCHIN in 2019, Rose has contributed to grants as project director, qualitative team lead, and co-investigator. She also serves as co-lead for OCHIN’s Qualitative Core for Iterative Research & Design. Drawing onRead more

Research Taona P. Haderlein, PhD, MA Investigator II About Taona Dr. Taona Haderlein is a research investigator at OCHIN and has been with the organization since 2024. A clinical psychologist by training, Taona leverages data science and informatics tools to study health equity, care coordination, and their intersection within the digital health context. She hasRead more

Research Teresa Schmidt, PhD Investigator About Teresa Dr. Teresa Schmidt is an investigator at OCHIN. She holds a doctorate in systems science and has over a decade of experience conducting observational research with medical record data. She studies health care utilization, health policy, and public health issues, including vaccine safety surveillance. She also publishes onRead more

Read more

LEADERSHIP Brigit Adamus Hatch MD, MPH Affiliate Investigator About Brigit Dr. Brigit Hatch is an affiliate investigator at OCHIN. As a practicing family physician dually certified in family medicine and preventive medicine, Brigit combines individual clinical care across the lifecycle with population and system-level innovations to improve the delivery of health care. She practices fullRead more