Gabe G. Weinreb

Gabe G. Weinreb

Doctoral student, Health Policy and Management, Harvard Business School

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publications

Making sense of new approaches to primary care delivery: A typology of innovations in primary care

Published in NEJM Catalyst, 2022

This typology of new innovative primary care organizations — spanning comprehensive care providers, limited-service providers, and value-based care enablers — provides a useful conceptual framework for classifying emerging models of primary care delivery and financing.

Landon, B. E., Weinreb, G. G., Bitton, A. (2022). Making sense of new approaches to primary care delivery: A typology of innovations in primary care. NEJM Catalyst.
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Association of Medicare Advantage vs Traditional Medicare with 30-day mortality among patients with acute myocardial infarction

Published in JAMA, 2022

Enrollment in Medicare Advantage, compared with traditional Medicare, was associated with modestly lower rates of 30-day mortality following acute MI in 2009, and the difference was no longer statistically significant by 2018.

Landon, B. E., Anderson, T. S., Curto, V. E., Cram, P., Fu, C., Weinreb, G. G., Zaslavsky, A. M., & Ayanian, J. Z. (2022). Association of Medicare Advantage vs Traditional Medicare with 30-day mortality among patients with acute myocardial infarction. JAMA, 328(21), 2126.
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Differences in treatment patterns and outcomes of acute myocardial infarction for low- and high-income patients in 6 countries

Published in JAMA, 2023

Income-based disparities in care patterns and patient outcomes following AMI were present even in countries with universal health insurance and robust social safety net systems.

Landon, B. E., Hatfield, L. A., Bakx, P., Banerjee, A., Chen, Y. C., Fu, C., Gordon, M., Heine, R., Huang, N., Ko, D. T., Lix, L. M., Novack, V., Pasea, L., Qiu, F., Stukel, T. A., Groot, C. U. D., Yan, L., Weinreb, G. G., & Cram, P. (2023). Differences in treatment patterns and outcomes of acute myocardial infarction for low- and high-income patients in 6 countries. JAMA, 329(13), 1088.
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Association of functional status, cognition, social support, and geriatric syndrome with admission from the emergency department

Published in JAMA Internal Medicine, 2023

This cohort study assesses observable patient-level factors associated with emergency department clinicians’ admission decision.

Smulowitz, P. B., Weinreb, G. G., McWilliams, J. M., O'Malley, A. J., & Landon, B. E. (2023). Association of functional status, cognition, social support, and geriatric syndrome with admission from the emergency department. JAMA internal medicine, 183(8), 784–792.
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Variation in care for patients presenting with hip fracture in six high‐income countries: A cross‐sectional cohort study

Published in Journal of the American Geriatrics Society, 2023

Rich countries vary widely in practice patterns and performance following hip fracture.

Burrack, N., Hatfield, L. A., Bakx, P., Banerjee, A., Chen, Y., Fu, C., Godoy, C., Gordon, M., Heine, R., Huang, N., Ko, D. T., Lix, L. M., Novack, V., Pasea, L., Qiu, F., Stukel, T. A., Groot, C. U., Ravi, B., Al‐Azazi, S., Weinreb, G. G., Cram, P., Landon, B. E. (2023). Variation in care for patients presenting with hip fracture in six high‐income countries: A cross‐sectional cohort study. Journal of the American Geriatrics Society, 71(12), 3780–3791.
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Sex-based disparities in acute myocardial infarction treatment patterns and outcomes in older adults hospitalized across 6 high-income countries

Published in Circulation Cardiovascular Quality and Outcomes, 2024

Accross countries, female incidence of AMI declined relative to males from 2011-18. Rates of surgery were lower for females and mortality was higher.

Lu, H., Hatfield, L. A., Al-Azazi, S., Bakx, P., Banerjee, A., Burrack, N., Chen, Y. C., Fu, C., Gordon, M., Heine, R., Huang, N., Ko, D. T., Lix, L. M., Novack, V., Pasea, L., Qiu, F., Stukel, T. A., Groot, C. a. U. D., Weinreb, G. G., Landon, B. E., Cram, P. (2024). Sex-based disparities in acute myocardial infarction treatment patterns and outcomes in older adults hospitalized across 6 high-income countries: An analysis from the International Health Systems Research Collaborative. Circulation Cardiovascular Quality and Outcomes, 17(3).
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Use of patient health survey data for risk adjustment to limit distortionary coding incentives in Medicare

Published in Health Affairs, 2025

Hybrid risk scores based on survey data and HCC diagnoses mitigate coding and selection incentives, strengthen incentives to manage medical expenditures, and reallocate payments from ACOs with inflated HCC risk scores to those serving populations with more meaningful indicators of poor health.

McWilliams, J. M., Weinreb, G. G., Landrum, M. B., Chernew, M. E. (2025). Use of patient health survey data for risk adjustment to limit distortionary coding incentives in Medicare. Health Affairs, 44(1), 48-57.
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