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In France, the joint evolution of both primary care supply—with a GP shortage—and demand have led to an increasing imbalance. The trend towards horizontal and vertical integration in primary care, with the support given to the development of multi-professional primary care groups (MPCGs) or Primary Care Team (PCTs) combine with practice pay-for-coordination mechanism, aims to improve the productive efficiency. Using exact matching and difference-in-differences estimations on panel data (2013–2017 period), we find that practicing in MPCG with pay-for-coordination significantly increases general practitioners (GPs)’ number of working days, patients seen and visits. Stratification tests point out that our findings especially hold for female, young and GPs practicing in medically underserved areas. Results are mainly driven by organizational design and not by pay-for-coordination schemes.