The Research on Continuity and Patient Outcomes
If you’ve been practicing primary care for any length of time, you already understand at an intuitive level
seeing patients over time can inform how you care for them. It can help you recognize changes, ask informed questions, and notice when something may be different.
What the research has done, with increasing rigor over the past decade, is quantify what you already know. The evidence connecting consistent physician-patient relationships to better outcomes is now broad, consistent, and clinically compelling.
This article summarizes the key findings.
The Evidence Base: What Studies Are Finding
A 2025 systematic review published in the British Journal of General Practice — one of the most comprehensive analyses of this question to date — examined 18 studies published between 2000 and 2023, drawing on data from millions of patients across multiple countries. The authors found consistent evidence that higher levels of personal physician consistency are associated with reduced emergency department visits, reduced hospitalizations, and lower overall healthcare utilization.[1]
A large-scale cohort study published in The Lancet Primary Care in 2025, using data from Danish national registers covering more than 4 million citizens over 15 years, found that patients with higher consistency in their relationships with their general practice had meaningfully better health outcomes, including lower rates of hospital admission and emergency care use.[2]
A 2024 retrospective study published in the Annals of Family Medicine analyzed health administrative data from more than 2 million patient encounters in Alberta, Canada, and found that physician steadiness — as distinct from clinic continuity — was independently associated with lower rates of emergency department visits and hospitalizations, across varying levels of patient complexity.[3]
Across settings, healthcare systems, and populations, the finding is consistent: patients who see the same physician over time use emergency care less, are hospitalized less, and have better long-term health outcomes than patients whose care is fragmented across multiple providers.
Why Continuity Produces Better Outcomes
The mechanisms behind this are well understood clinically, even if they’re difficult to reduce to a single variable.
A physician who has cared for a patient over time may develop familiarity with information that is not always fully reflected in a chart, including the patient’s established baseline, typical response to stress, and concerns shared in prior conversations. That contextual knowledge can support into clinical decision-making. Research shows that consistent physician-patient relationships may help clinicians recognize subtle changes in a patient’s condition, support clinical judgment, and encourage adherence to preventive-care guidelines..[4]
Prevention, in particular, can be supported by consistent, meaningful patient interactions. The kind of preventive care that helps impact long-term health outcomes — addressing cardiovascular risk earlier, considering patterns that may indicate metabolic change, building a patient’s understanding of their own health over time — requires repeated contact with a physician who has the time and the relationship to go deeper than a single chief complaint.
The MDVIP Outcomes Data
MDVIP’s own outcomes data, drawn from more than 11 peer-reviewed studies, reflects what the broader research literature predicts: a 70% reduction in hospitalizations among patients in MDVIP-affiliated practices, and 40% more identification markers linked to cardiovascular risk through MDVIP’s annual Wellness Program compared to standard checkups.[5]
These are not abstract statistics. They represent what happens when a physician has a practice small enough to develop meaningful relationships with their patients, appointments long enough to spend more time with them, and a prevention-focused model that builds stable relationships rather than episodic encounters.
What the Research Means for How You Practice
The evidence on consistency and outcomes is not an argument for any particular practice model. It is an argument for the conditions that make stability possible.
Those conditions require time. They require a panel small enough to allow for meaningful appointments. They require a practice structure that prioritizes the long-term relationship over the immediate transaction.
In high-volume primary care settings, where physicians may take care of 1,500 to 2,000 patients or more and the average appointment time has shrunk considerably, maintaining the kind of consistency the research points to is structurally difficult. The research doesn’t hold individual physicians responsible for that. It describes what becomes possible when the model is designed to support it.[6]
A Note on What This Research Doesn’t Say
The research is not a critique of physicians who practice in high-volume environments. Most of those physicians entered medicine precisely because they valued the kind of relationship-based care the research supports. The structural constraints of their practice environment, not their values, are what make that care difficult to deliver.
The research simply describes what becomes possible when those constraints are removed.
References
[1] Engström SG, André M, Arvidsson E, et al. Personal GP continuity improves healthcare outcomes in primary care populations: a systematic review. British Journal of General Practice. 2025;75(757):e518–e525. https://doi.org/10.3399/BJGP.2024.0568
[2] Continuity of care in general practice and patient outcomes in Denmark: a population-based cohort study. The Lancet Primary Care. 2025. https://doi.org/10.1016/S3050-5143(25)00016-0
[3] McDonald T, Ronksley PE, Cook LL, et al. The Impact of Primary Care Clinic and Family Physician Continuity on Patient Health Outcomes: A Retrospective Analysis From Alberta, Canada. Annals of Family Medicine. 2024;22(3):223–229. https://doi.org/10.1370/afm.3107
[4] Bazemore A, Merenstein Z, Handler L, Saultz JW. The impact of interpersonal continuity of primary care on health care costs and use: a critical review. Annals of Family Medicine. 2023;21(3):274–279. https://doi.org/10.1370/afm.2961
[5] MDVIP internal data, based on analysis of 11+ peer-reviewed studies.
[6] Association of American Medical Colleges. The Complexities of Physician Supply and Demand: Projections From 2021 to 2036. https://www.aamc.org/news/press-releases/new-aamc-report-shows-continuing-projected-physician-shortage