Analytics and Economics Lead


aaron [dot] baum [at]

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I lead Analytics and Economics at Waymark, a public benefit corporation providing community-based, tech-enabled healthcare services for Medicaid beneficiaries, in partnership with primary care providers and health plans.

Previously, I was an Assistant Professor of Health System Design and Global Health and an Economist at Mount Sinai. My research group studied the organization and delivery of primary care, value-based payment models, quality of care, population health, and global health using econometric and statistical learning methods, and was supported by grants from the National Institutes of Health (NHLBI K01 and Claude D. Pepper Older Americans Independence Center P30 project), Centers for Disease Control (NYU U01 subaward), United States Agency for International Development (Fonkoze subaward), Department of Veterans Affairs Office of Connected Care (Iowa VA subaward), and Archstone Foundation (UCSF subaward).


Faculty affiliate, The Center for Primary Care at Harvard Medical School

Visiting fellow, Stanford University School of Medicine

Research affiliate, Department of Veterans Affairs (New York Harbor and Iowa City)

Past Roles/Startups

Assistant Professor of Health System Design & Global Health and Principal Economist, Icahn School of Medicine at Mount Sinai

Boutik Sante (Devex , US Embassy Haiti)

City Health Works (The Economist, NPR)

Technologist in Residence @ Cornell Tech (Pushcart, MacArthur Foundation)

Selected Publications

Baum A, Bazemore A, Peterson L, Basu S, Humphreys K, Phillips RL (2021). Primary Care Physicians and Spending on Low-Value Care. Annals of Internal Medicine.

Baum A, Wisnivesky J, Basu S, Siu AL, Schwartz MD (2020). Association of Geographic Differences in Prevalence of Uncontrolled Chronic Conditions With Changes in Individuals' Likelihood of Uncontrolled Chronic Conditions. JAMA.

Baum A, Kaboli PJ, Schwartz MD (2020). Reduced In-Person and Increased Telehealth Outpatient Visits During the COVID-19 Pandemic. Annals of Internal Medicine.

Baum A, Schwartz MD (2020). Admissions to Veterans Affairs Hospitals for Emergency Conditions During the COVID-19 Pandemic. JAMA.

Baum A, Song Z, Landon B, Phillips R, Bitton A, Basu S (2019). Health Care Spending Slowed After Rhode Island Applied Affordability Standards To Commercial Insurers. Health Affairs.

Bruzelius E, Baum A (2019). The Mental Health of Hispanic/Latino Americans Following National Immigration Policy Changes: United States, 2014–2018. American Journal of Public Health.

Baum A, Barnett ML, Wisnivesky J, & Schwartz MD (2019). Association Between a Temporary Reduction in Access to Health Care and Long-term Changes in Hypertension Control Among Veterans After a Natural Disaster. JAMA Network Open.

Baum A, Scarpa J, Bruzelius E, Tamler R, Basu S, & Faghmous J. (2017). Targeting weight loss interventions to reduce cardiovascular complications of type 2 diabetes: a machine learning-based post-hoc analysis of heterogeneous treatment effects in the Look AHEAD trial. The Lancet Diabetes & Endocrinology.

Baum A, Elize W, & Jean-Louis F (2017). Microfinance Institutions’ Successful Delivery of Micronutrient Powders: A Randomized Trial In Rural Haiti. Health Affairs.