Objectives: Our aim in this study was to assess the impact of the Mobile Diabetes Telemedicine Clinic, which serves First Nations communities in British Columbia, on clients' with diabetes condition and management., Methods: A travelling team visits approximately 120 sites annually. Assessment of persons with diabetes includes interview, physical exam, point-of-care laboratory (glycated hemoglobin, blood glucose, lipid profile, kidney profile) and retinal fundus photographs. Nurses provide education and lifestyle, medication and wellness recommendations. The endocrinologist reviews records and provides further recommendations to primary care providers. To assess the impact at second and later visits, compared with the immediately preceding visit, we measured mean changes in body weight, glycated hemoglobin, urinary albumin:creatinine ratio and estimated glomerular filtration rate, as well as changes in proportions of clients meeting targets for blood pressure, low-density lipoprotein cholesterol, medications, smoking and physical activity., Results: From 2012 to 2018, a total of 3,045 visits were completed by 1,056 clients with diabetes who attended on at least 2 occasions. Mean time since the preceding visit was 1.6 years. Mean change (after vs before) in glycated hemoglobin was 0.06 (95% confidence limit, -0.03 to 0.14), body weight 0.0 kg (-0.2 to 0.2), albumin:creatinine ratio 1.31 mg/mmol (0.27 to 2.35) and estimated glomerular filtration rate -4.8 mL/min (-6.2 to -3.4). The proportion of clients meeting both blood pressure targets (systolic <130 mmHg and diastolic <80 mmHg) increased from 25% at first visit to 33% at the second and 32% at the third or later visits (p<0.001, chi-square test). The proportion of those with low-density lipoprotein cholesterol of <2.0 mmol/L increased from 56% to 62% at the second visit and 69% at the third or later visits (p<0.001). The proportion of those taking renin-angiotensin-aldosterone system inhibitors or other antihypertensive agents and statins increased (p<0.001), and proportions decreased for smoking (p<0.001) and exercising ≥60 min/week (p=0.002)., Conclusions: Weight and diabetic control were stabilized. Most management practices showed improvement., (Copyright © 2020 Canadian Diabetes Association. Published by Elsevier Inc. All rights reserved.)