Effect of Teledermatology on Access to Dermatology Care Among Medicaid Enrollees

IMPORTANCE: Access to specialists such as dermatologists is often limited for Medicaid enrollees. Teledermatology has been promoted as a potential solution; however, its effect on access to care at the population level has rarely been assessed. OBJECTIVES: To evaluate the effect of teledermatology on the number of Medicaid enrollees who received dermatology care and to describe which patients were most likely to be referred to teledermatology. DESIGN, SETTING, AND PARTICIPANTS: Claims data from a large California Medicaid managed care plan that began offering teledermatology as a covered service in April 2012 were analyzed. The plan enrolled 382 801 patients in California’s Central Valley, including 108 480 newly enrolled patients who obtained coverage after the implementation of the Affordable Care Act. Rates of dermatology visits by patients affiliated with primary care practices that referred patients to teledermatology and those that did not were compared. Data were collected from April 1, 2012, through December 31, 2014, and assessed from March 1 to October 15, 2015. MAIN OUTCOMES AND MEASURES: The percentage of patients with at least 1 visit to a dermatologist (including in-person and teledermatology visits) and total visits with dermatologists (including in-person and teledermatology visits) per 1000 patients. RESULTS: Of the 382 801 patients enrolled for at least 1 day from 2012 to 2014, 8614 (2.2%) had 1 or more visits with a dermatologist. Of all patients who visited a dermatologist, 48.5% received care via teledermatology. Among the patients newly enrolled in Medicaid, 75.7% (1474 of 1947) of those who visited a dermatologist received care via teledermatology. Primary care practices that engaged in teledermatology had a 63.8% increase in the fraction of patients visiting a dermatologist (vs 20.5% in other practices; P