Telehealth is the use of digital technology to deliver healthcare remotely, whether that’s a video visit with your doctor, a text-based check-in about lab results, or a wearable device sending your blood pressure readings to your care team. It covers everything from live consultations to behind-the-scenes health education and administrative tasks, making it broader than just a virtual doctor’s appointment. The U.S. telehealth market is growing at roughly 24% per year, and the way insurance covers these services is shifting alongside it.
Telehealth vs. Telemedicine
People use “telehealth” and “telemedicine” interchangeably, but they aren’t quite the same thing. Telemedicine refers specifically to clinical care: a physician in one location treating a patient in another using electronic communication. Telehealth is the bigger umbrella. It includes telemedicine but also covers non-clinical services like health education, provider training, and public health administration. If a nurse practitioner diagnoses your sinus infection over video, that’s telemedicine. If a hospital uses a digital platform to train staff on new protocols, that’s telehealth too.
Three Ways Telehealth Works
Telehealth visits aren’t all video calls. The technology falls into three main categories, and you may encounter more than one during a single episode of care.
Synchronous (live). You and your provider communicate in real time over video or phone. This is what most people picture when they think of telehealth. It works well for urgent concerns, follow-up appointments, and mental health sessions.
Asynchronous (store-and-forward). You submit medical information, such as photos of a skin rash or a written summary of your symptoms, and a provider reviews it later without you being present. Dermatology and radiology use this model frequently. It’s convenient when you don’t need an immediate back-and-forth conversation.
Remote patient monitoring (RPM). Automated devices collect health data and send it to your care team on an ongoing basis. Common RPM devices include blood pressure cuffs, blood sugar monitors, heart rate trackers, scales, pulse oximeters for breathing, and even fetal monitors for pregnancy. Your provider reviews the data over time and can intervene early if something looks off.
What Can Be Treated Remotely
Telehealth handles a wider range of conditions than many people expect. The U.S. Department of Health and Human Services lists these among the most common uses:
- Cold and flu symptoms, headaches, minor infections, and upset stomachs
- Skin problems like rashes or acne
- Mental health counseling and substance use support
- Reviewing lab work, imaging results, or medication changes
- Post-surgical check-ins
- Physical therapy and occupational therapy
- Nutrition counseling and diabetes self-management
- Ongoing chronic disease monitoring through RPM devices
Telehealth is less suited for situations requiring a hands-on physical exam, emergency care, or procedures. But for routine management and follow-ups, it often replaces an in-person visit without any loss in care quality.
How Outcomes Compare to In-Person Visits
One of the biggest questions people have is whether virtual care is actually as good as sitting in a doctor’s office. A systematic review published in Cureus found that telehealth adoption was associated with an 89% shorter average hospital stay for condition-related admissions. Hospitalization rates dropped by 22% for cardiovascular conditions and by as much as 33% for dementia-related admissions. These numbers likely reflect the fact that remote monitoring catches problems earlier, before they escalate to the point of requiring a hospital bed.
The benefits are especially pronounced for chronic conditions where frequent check-ins matter. If you have heart failure and a connected scale alerts your care team to sudden weight gain (a sign of fluid retention), they can adjust your treatment the same day rather than waiting until your next scheduled appointment.
What You Need for a Telehealth Visit
The technical bar is relatively low. For a video visit, the FCC recommends a minimum internet speed of 25 Mbps download and 3 Mbps upload. Most home broadband and many cellular plans meet that threshold. You’ll also need a device with a camera and microphone: a smartphone, tablet, or laptop all work. Your provider’s office will typically send a link to a secure video platform, and you log in from wherever you are.
Audio-only visits (phone calls) are also an option when video isn’t practical. This matters for people with limited internet access or older adults who aren’t comfortable with video technology. Through the end of 2027, Medicare covers audio-only telehealth for a wide range of services, with permanent coverage for behavioral health after that.
Insurance Coverage and Medicare Rules
Most private insurance plans now cover telehealth visits, though copays and eligible services vary by plan. The bigger story is Medicare, which dramatically expanded telehealth access during the pandemic and has extended many of those flexibilities.
Through December 31, 2027, Medicare beneficiaries can receive telehealth services from anywhere in the United States, including their homes, regardless of whether they live in a rural area. An expanded list of provider types, including physical therapists, occupational therapists, and speech-language pathologists, can bill for telehealth during this window. Hospitals can also bill for services like diabetes education and nutrition therapy delivered remotely to patients at home.
Starting January 1, 2028, many of these flexibilities are set to expire. For non-behavioral health services, beneficiaries would generally need to be located at a medical facility in a rural area to qualify for Medicare telehealth coverage. Physical therapists, occupational therapists, speech-language pathologists, and audiologists would lose the ability to furnish telehealth services through Medicare. Behavioral health is the exception: audio-only and video visits for mental health and substance use treatment retain broader coverage even after 2028.
These dates could shift if Congress passes new legislation, so it’s worth checking your specific plan’s telehealth policy if you rely on these services.
Privacy and Security
Telehealth platforms that handle your health information must comply with HIPAA, the same privacy law that governs your doctor’s office. In practice, this means your provider must use a technology vendor that has signed a business associate agreement and follows HIPAA’s security standards. Consumer apps like FaceTime or Zoom’s standard version don’t automatically meet these requirements, though some providers received temporary permission to use them during the pandemic. If you’re unsure whether a platform is secure, your provider’s office can confirm what they use and why.
The Digital Divide Still Matters
Telehealth only works if you can get online, and that remains a real barrier. Research has identified a critical threshold: in areas where fewer than 40% of rural residents have internet access, telehealth investments show minimal impact on preventive care. Above that threshold, the picture changes dramatically. In areas with high internet penetration (above 70%), telehealth adoption rates at healthcare facilities reach nearly 68%, compared to just 12% in low-connectivity areas.
Some health systems have tried to bridge this gap by providing internet-connected devices to patients or negotiating free data plans with telecom companies. The Department of Veterans Affairs, for example, has supplied tablets and cellular data to veterans in underserved areas. Still, the infrastructure gap means telehealth’s benefits aren’t evenly distributed. People in rural communities, lower-income households, and older populations are the most likely to be left out.