A patient portal is a secure website or app that gives you online access to your personal health information. Think of it as a digital hub connecting you to your doctor’s office, where you can view test results, message your care team, schedule appointments, and manage billing, all available 24 hours a day. Nearly every hospital in the United States now offers one: as of 2024, 99% of U.S. hospitals let patients electronically view their health information through a portal.
What You Can Do on a Patient Portal
Patient portals generally organize around a handful of core functions. The specifics vary between health systems, but most portals let you handle things that would otherwise require a phone call or an office visit.
Viewing your health records. You can see lab results, medication lists, vaccination history, visit summaries, and clinical notes from your provider. In 2024, 95% of U.S. hospitals gave patients access to their clinical notes online, not just test numbers.
Communicating with your care team. Secure messaging lets you send questions to your doctor, nurse, or other staff. You can request prescription refills, ask for referrals, or provide updates about how you’re feeling. This is different from email because messages stay within a protected system.
Scheduling and forms. Most portals let you book non-urgent appointments, schedule telehealth or video visits, and complete intake questionnaires or paperwork before you arrive. Some also support advance care planning documents.
Billing and insurance. You can view and pay bills, update your insurance information, and check your benefits without calling the billing department.
Downloading and sharing records. You can download your full medical record or a visit summary, share records with providers outside your health system, and in some cases link your portal data to third-party health apps on your phone. About 62% of hospitals also let patients submit their own health data, like blood glucose readings or daily weight, directly through an app.
One important caveat: portals are not designed for emergencies or urgent needs. If something is time-sensitive, calling your provider’s office or going to an emergency room is still the right move.
How Portals Affect Your Health
Using a patient portal isn’t just convenient. There’s solid evidence it can improve health outcomes, particularly for people managing chronic conditions. In one study, diabetes patients who actively used their portal were significantly more likely to bring their blood sugar under control: 56% of portal users achieved their target levels, compared to 32% of non-users. Portal users with high blood pressure were also 24% more likely to get their blood pressure controlled.
The pattern extends beyond a single condition. Portal users were more likely to get annual flu vaccinations, blood pressure checks, and cholesterol screenings. People with uncontrolled asthma who used a portal had 14% more medication adjustments in the following year, suggesting their providers could respond more quickly to what wasn’t working. Higher medication adherence has been documented in portal users across conditions ranging from pediatric asthma to rheumatic disorders.
The likely explanation is straightforward: when you can see your own lab trends, read your doctor’s notes, and message your care team without the friction of phone calls and voicemail, you stay more engaged with your own care.
Which Portal You’ll Use
The portal you encounter depends on which electronic health record system your hospital or clinic runs. The most widely recognized is MyChart, powered by Epic, which is used by many of the largest health systems in the country. Other common systems include portals built on Cerner (now Oracle Health) and athenahealth platforms. If you see multiple providers across different health systems, you may end up with accounts on more than one portal, though efforts to improve data sharing between systems are ongoing.
Many portals now offer smartphone apps in addition to web browsers. By 2024, 81% of hospitals supported patient access through dedicated apps, making it possible to check results or message your doctor from your phone just as easily as checking your email.
Your Legal Right to Access
Federal law backs your right to see your own health records electronically. The 21st Century Cures Act requires healthcare providers to give patients access to all of their electronic health information, both structured data like lab values and unstructured data like clinical notes, at no cost. The law also pushes the healthcare industry to adopt standardized technology so that patients can access their records securely through smartphone apps, not just through a provider’s website.
This means a provider cannot charge you for viewing your records through a portal, and they cannot block access to certain types of information without a valid reason. The rules around “information blocking,” as it’s called, have gotten stricter in recent years, and hospital adoption of these requirements grew from 65% in 2021 to 85% in 2024.
Giving a Family Member Access
If you’re a caregiver for a parent, a spouse, or a child, most portals offer what’s called proxy access. This lets an authorized person log in and manage another patient’s health information. The setup typically requires a signed authorization form, verified in person at the provider’s office, which is then added to the patient’s medical record.
For children, the rules shift with age. Parents or legal guardians generally get full access to a child’s portal account from birth through age 12. Once a child turns 12, access becomes more limited and may require the teenager’s permission. Sensitive health information, such as records related to mental health, reproductive care, or substance use, is often withheld from a parent’s view to protect the adolescent’s privacy. When the child turns 18, parental proxy access is automatically terminated, and the young adult manages their own account.
Common Barriers to Using a Portal
Despite near-universal availability, not everyone finds portals easy to use. Research based on national survey data identifies several recurring obstacles. Limited internet access and gaps in device ownership still affect some populations, particularly older adults and people in rural areas. Technical skills matter too: navigating a portal requires basic comfort with websites, passwords, and digital forms.
Health literacy is another significant barrier. Even when patients can log in, the medical language in lab results or clinical notes can be difficult to interpret. People with lower education levels or limited English proficiency face particular challenges. Some health systems have begun offering portals in multiple languages or adding plain-language explanations alongside test results, but this is far from universal. If you find your portal confusing, using the secure messaging feature to ask your care team to explain a result in simpler terms is a reasonable workaround.