EVV, or electronic visit verification, is a system that digitally confirms when a caregiver arrives at a patient’s home, when they leave, and what services they provide during the visit. It replaced paper-based timesheets for Medicaid-funded home care, and every state is now required by federal law to use it. If you’re a home care worker, a patient receiving in-home services, or a family member managing someone’s care, EVV is the technology behind the clock-in and clock-out process that documents each visit.
Why EVV Exists
Home-based care has long been vulnerable to billing problems. In 2010, a federal investigation found that nearly one in five personal care service claims were either undocumented or had no record to support the billing, totaling $63 million in unsupported Medicaid claims that year alone. By 2015, personal care providers accounted for 12 percent of all Medicaid fraud investigations despite representing only two percent of total Medicaid spending.
The problem was straightforward: with paper timesheets, there was no reliable way to confirm that a visit actually happened, lasted as long as billed, or included the services claimed. EVV was designed to close that gap by creating a digital record tied to real-time data like GPS location and timestamps.
The Federal Law Behind It
The 21st Century Cures Act, signed in 2016, made EVV a federal requirement for all Medicaid-funded home care. The law set two deadlines. States had to implement EVV for personal care services by January 1, 2020, and for home health care services by January 1, 2023. States that miss these deadlines face incremental reductions to their federal Medicaid funding of up to one percent, unless they can demonstrate a good faith effort and unavoidable delays.
The Congressional Budget Office estimated that EVV would save states $290 million over a 10-year period. One state projected nearly $5 million in savings in just the first year, based on better fraud detection and fewer inappropriate payments.
What EVV Actually Records
Every EVV-verified visit captures six core data points: the type of service provided, the identity of the person receiving care, the date of the visit, the location where care was delivered, the time the visit started, and the time it ended. Together, these create a verifiable record that ties each billing claim to an actual, documented visit.
For caregivers, this typically means checking in on a smartphone app or phone system at the start of a visit and checking out when it’s done. The system logs the location and timestamps automatically, and the caregiver may also record which specific tasks they performed during the visit.
How Caregivers Check In
Most states offer multiple ways to record EVV data, depending on what technology is available. The most common is a mobile app installed on the caregiver’s smartphone or tablet. The app uses GPS to verify the caregiver’s location and records check-in and check-out times with a tap. This is generally the fastest and most reliable option.
If a smartphone isn’t available, caregivers can use telephonic visit verification. This involves calling a designated phone number from the patient’s landline or fixed internet phone. The system identifies the visit based on the registered phone number. Calls from unregistered numbers or cell phones create exceptions that have to be corrected manually by a supervisor.
As a last resort, some programs provide a small verification device that stays in the patient’s home. The caregiver interacts with the device to log their visit. This option involves more steps and is more prone to errors, so it’s typically reserved for situations where neither the app nor the phone system will work.
Who Is Exempt
Federal guidance from CMS makes one significant exemption clear: EVV requirements do not apply when the caregiver and the person receiving care live together. A visit from someone who already lives in the home doesn’t count as an “in-home visit” under the law. This applies to both personal care services and home health care services.
That said, states can choose to require EVV for live-in caregivers anyway, particularly when reimbursement is based on hourly units rather than a flat daily rate. So the exemption exists at the federal level, but your state may still require it.
Privacy and Autonomy Concerns
EVV hasn’t been without criticism. Disability rights advocates and caregivers have raised serious concerns about the level of surveillance the system creates. In practice, EVV often requires real-time geolocation tracking throughout a shift, with the caregiver’s and patient’s locations expected to match. If a caregiver steps across the street to pick up a package or grab a grocery order at the curb, the system may flag it as an exception.
For caregivers, the constant interaction with an app or phone system can interrupt the actual delivery of care. Workers describe having to pause what they’re doing to document tasks in real time, which can feel intrusive and counterproductive. For patients, the system can create an assumption that they never leave home, which advocates have called out as a limitation that doesn’t reflect the reality of many disabled people’s lives.
Critics have also noted that EVV’s underlying logic disproportionately affects low-income communities and communities of color, who make up a large share of both Medicaid recipients and home care workers. The concern is that the system treats these populations as inherently suspect, requiring a level of documentation and surveillance that other healthcare settings don’t face. These tensions remain unresolved even as EVV becomes standard practice across all 50 states.
What This Means for Patients and Families
If you or a family member receives Medicaid-funded home care, EVV is already part of your experience. Your caregiver will check in and out using a phone or app at each visit, and the system will log the time and location automatically. You don’t need to do anything differently in most cases, though some states require the patient or a representative to confirm that the visit occurred.
If visits are flagged for discrepancies, such as a caregiver checking in from an unexpected location or a visit lasting shorter than billed, your provider’s administrative team handles the correction. Occasional flags are normal and don’t necessarily indicate a problem. The system is designed to catch patterns, not penalize one-off situations where a GPS signal was off or a caregiver forgot to check out.