Telemedicine: Past, present, and future

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Telemedicine has the potential to transform the future of medicine in both rural and urban settings by improving access to medical care and providing a more affordable way to deliver it. Low reimbursement rates and lack of interstate licensing are the main obstacles limiting its widespread use in the United States. Demand for telemedicine, however, will likely continue to rise, and primary care providers will need to be familiar with the practical and legal considerations in establishing this type of service.


  • An estimated 7 million patients in the United States will use telemedicine services this year alone; demand will continue to rise.
  • Low reimbursement rates and current lack of interstate licensure laws limit the ability of many health care providers to offer telemedicine services.
  • The rules and regulations addressing ancillary team members’ participation in telemedicine vary from state to state.
  • Areas of future growth include chronic disease management and “hospital at home” care.



Telemedicine has been used successfully to improve patient access to medical care while reducing healthcare costs. In 2016, an estimated 61% of US healthcare institutions and 40% to 50% of US hospitals used telemedicine.1 From 2012 to 2013, the telemedicine market grew by 60%. However, its widespread use has been limited by low reimbursement rates and interstate licensing and practice issues.

In this commentary, we discuss the history of telemedicine, current uses and challenges, and areas of future growth.


The World Health Organization defines telemedicine as “the delivery of health care services, where distance is a critical factor, by all health care professionals using information and communication technologies for the exchange of valid information for diagnosis, treatment and prevention of disease and injuries, research and evaluation, and for the continuing education of healthcare providers, all in the interests of advancing the health of individuals and their communities.”2

Modern telemedicine began in the early 1900s in the Netherlands with the transmission of heart rhythms over the telephone,3 which was followed by transmissions to radio consultation centers in Europe in the 1920s. In the 1940s, radiographic images were transmitted by telephone between cities in Pennsylvania.4

Today, telemedicine is used in a variety of specialties including radiology, neurology, and pathology5 and by organizations in the United States ranging from the National Aeronautics and Space Administration and Kaiser Permanente to the US Department of Veterans Affairs (VA). The VA, in particular, is a leader in telemedicine. In 2012, it reduced mental health hospitalizations by over 40%, heart failure hospitalizations by 25%, and diabetes and chronic obstructive pulmonary disease hospitalizations by about 20% using telemedicine programs.6 In 2015, it provided about 2.1 million telemedicine consultations to 677,000 veterans.7


There are 2 types of telemedicine programs.

Synchronous programs take place in real time and are a live 2-way interaction between the patient and healthcare provider. This includes virtual appointments that are conducted using the patient’s smartphone, tablet, or computer with a camera. When using a smartphone or tablet, patients must first download an app that connects them with a provider.

Asynchronous programs, also known as “store and forward” applications, are not live and involve the transfer of images, videos, and other clinical information that a healthcare provider views and responds to at a later time. In this case, patients may wear medical devices to monitor and track health information (eg, blood pressure) in a personal health application that they forward to their healthcare provider.


Telemedicine allows patients living in both rural and urban areas to access healthcare when they need it. Currently, about 59 million Americans reside in health professional-shortage areas, which are rural and urban areas with shortages of primary care providers.1 These patients often experience long delays when attempting to schedule a healthcare visit7 and may experience issues with continuity of care if they are unable to see the same care provider at every visit.

It also provides access to care to patients without reliable transportation or those who may be too sick to travel long distances. For some patients, such as those with cystic fibrosis who do not want to come to the hospital for fear of contracting multiple antibiotic-resistant bacteria, a virtual office visit may be safer.

At the same time, telemedicine helps reduce healthcare costs. For example, it:

  • Optimizes staff distribution and healthcare resources within a healthcare facility and across an entire system
  • Enables primary care providers to conduct appointments without additional office staff at any time, thereby extending office hours and availability
  • Reduces the financial impact of patient no-shows
  • Improves patient engagement and outcomes
  • Reduces unnecessary office and emergency room visits and hospital admissions.

The last point is especially important for senior living and skilled nursing centers whose residents are known to have high rates of hospital admissions.8,9 In these facilities, 24-hour medical assistance may not be available, and telemedicine can help troubleshoot common problems.


Limited reimbursement has curtailed the widespread use of telemedicine. Although rules for reimbursement are evolving, telemedicine still represents a small amount of total healthcare expenditures. In 2015, Medicare spent approximately $14.4 million on services delivered via telemedicine—less than 0.01% of total spending on healthcare services.1

Currently, 31 states and the District of Columbia have telemedicine parity laws that mandate private commercial insurers to pay for telemedicine services.10 Unfortunately, there is a lack of uniformity in the specifics of these laws, resulting in variations in reimbursement rates. Furthermore, a large number of larger insurers such as Medicare and Medicaid and many self-insured plans do not fall under these mandates.

Another factor that affects reimbursement for telemedicine services is the setting of the medical encounter. Medicare reimburses providers for telemedicine services only when they are conducted at specific sites such as physician’s offices, hospitals, rural health centers, and skilled nursing facilities. Additionally, Medicare only reimburses for services in areas with a shortage of healthcare professionals and in non-metropolitan areas, which excludes many urban patients.11

In contrast, more commercial reimbursement is occurring for online urgent care, and options for commercial reimbursement of online behavioral services are being explored.

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Obesity: Are shared medical appointments part of the answer?

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