BACKGROUND: In an effort to foster patient engagement, some healthcare systems provide their patients with open notes, enabling them to access their clinical notes online. In January 2013, the Veterans Health Administration (VA) implemented online access to clinical notes ("VA Notes") through the Blue Button feature of its patient portal. OBJECTIVE: To measure the association of online patient access to clinical notes with changes in healthcare utilization and clinician documentation behaviors. DESIGN: A retrospective cohort study. PATIENTS: Patients accessing My HealtheVet (MHV), the VA's online patient portal, between July 2011 and January 2015. MAIN MEASURES: Use of healthcare services (primary care clinic visits and online electronic secure messaging), and characteristics of physician clinical documentation (readability of notes). KEY RESULTS: Among 882,575 unique portal users, those who accessed clinical notes (16.2%; N = 122,972) were younger, more racially homogenous (white), and less likely to be financially vulnerable. Compared with non-users, Notes users more frequently used the secure messaging feature on the portal (mean of 2.6 messages (SD 7.0) v. 0.87 messages (SD 3.3) in January-July 2013), but their higher use of secure messaging began prior to VA Notes implementation, and thus was not temporally related to the implementation. When comparing clinic visit rates pre- and post-implementation, Notes users had a small but significant increase in rate of 0.36 primary care clinic visits (2012 v. 2013) compared to portal users who did not view their Notes (p = 0.01). At baseline, the mean reading ease of primary care clinical notes was 53.8 (SD 10.1) and did not improve after implementation of VA Notes. CONCLUSIONS: VA Notes users were different than patients with portal access who did not view their notes online, and they had higher rates of healthcare service use prior to and after VA Notes implementation. Opportunities exist to improve clinical note access and readability.

In response to concerns about Veterans’ access to Veterans Affairs (VA) health care services, Congress passed the Veterans Access, Choice and Accountability Act of 2014 (Choice), which broadened Veterans’ eligibility to receive health care delivered by non-VA community providers paid for by VA (ie, Community Care).1 Specifically, the Veterans Choice Program (VCP) allowed Veterans waiting longer than 30 days for specific services in VA, who lived >40 miles from a VA clinic, or who experienced specific hardships in accessing VA care, the option of receiving Community Care. To help implement VCP successfully, the VA established the Office of Community Care (OCC) in fiscal year (FY) 2015 to lead the coordination of Community Care expansion. This included reorganizing local departments at each VA facility to ensure that VA/Community Care referrals across systems occurred seamlessly.