Electronic Visit Verification (EVV) works by electronically capturing and documenting key details of home care visits in real-time. When a caregiver arrives at a client’s home, they use a mobile app, phone system, or fixed device to clock in. The EVV system records the visit start time, location (via GPS or caller ID), caregiver identity, and service type. When the visit ends, the caregiver clocks out, and the system captures the end time. This data automatically flows to the agency’s billing and payroll systems, creating an auditable record that proves services were delivered as billed. EVV technology eliminates paper timesheets, prevents fraud, ensures compliance with the 21st Century Cures Act, and streamlines revenue cycle processes for Medicaid-funded home care agencies.
The mechanics of EVV involve multiple technologies working together to create a secure, compliant, and efficient visit verification system. Understanding this workflow helps agencies implement EVV successfully. Learn more about electronic visit verification.
EVV Basics (21st Century Cures Act)
The 21st Century Cures Act, signed into law in December 2016, fundamentally changed how home care agencies document Medicaid-funded services.
Legislative Background
Congress passed the Cures Act to combat fraud and improve payment integrity in Medicaid home care programs. Prior to EVV, paper timesheets were easily manipulated, making it difficult to verify that services were actually delivered.
Federal Mandate
Section 12006 of the Cures Act required all states to implement EVV for Medicaid-funded personal care services by January 1, 2020, and home health services by January 1, 2023.
Required Data Points
Every EVV system must electronically capture six specific elements:
- Type of service performed
- Individual receiving the service
- Date of the service
- Location of service delivery
- Individual providing the service
- Time the service begins and ends
State Implementation
While the federal law sets minimum requirements, states determine how EVV is implemented. According to CMS guidance available at medicaid.gov, states can choose open vendor models (agencies select their own EVV system), closed models (state-mandated system), or hybrid approaches.
Consequences of Non-Compliance
States that fail to implement compliant EVV systems face reduced Federal Medical Assistance Percentage (FMAP) rates, resulting in millions in lost federal funding. Agencies that don’t use EVV risk claim denials and program exclusion.
EVV Workflow (Clock-In, GPS, Biometric)
The typical EVV workflow involves several steps and verification methods:
Pre-Visit Setup
Before caregivers arrive at client homes, the agency’s scheduling system creates visit assignments containing client information, scheduled times, and authorized services. This data syncs to the EVV system.
Clock-In Process
When the caregiver arrives, they initiate clock-in using one of these methods:
Mobile App
The caregiver opens the app on their smartphone, selects the client, and taps “Start Visit.” The app automatically captures GPS coordinates, timestamp, and device ID.
Telephony System
The caregiver calls a toll-free number from the client’s phone. After entering their PIN and client code, the system records caller ID and time.
Fixed Device
The caregiver uses a tablet or kiosk at the client’s home, entering a PIN or scanning a fingerprint to verify identity.
Identity Verification
Modern EVV systems add security through:
- Biometric fingerprint scanning
- Facial recognition
- Photo capture at clock-in
- Device authentication
These methods prevent “buddy punching” where one caregiver clocks in for another.
During the Visit
Some EVV systems track the caregiver’s location throughout the visit to ensure they remain at the client’s home. Others allow caregivers to document tasks completed or client conditions observed.
Clock-Out Process
At visit end, the caregiver clocks out using the same method as clock-in. The system calculates total visit duration and flags any discrepancies with scheduled times.
Exception Handling
When visits vary from the schedule, caregivers can note reasons (client requested early end, emergency situation, etc.). Supervisors review and approve exceptions before billing.
Ensuring Compliance with EVV
Compliance requires both technology and process:
System Configuration
EVV systems must be configured to capture all six federally required data points plus any additional state-specific requirements. Regular audits ensure configuration remains compliant as regulations change.
Caregiver Training
Proper clock-in/clock-out procedures must be taught and reinforced. Caregivers need to understand why EVV matters and consequences of non-compliance.
Geofencing
Many agencies set up geofences (virtual boundaries) around client homes. If a caregiver clocks in outside the geofence, the system triggers an alert for supervisor review.
Real-Time Monitoring
Supervisors should monitor visits in real-time, addressing missed clock-ins immediately rather than discovering issues during billing.
Documentation Standards
Even with EVV, agencies must maintain documentation of services delivered. EVV proves presence but doesn’t document care activities, so both systems work together.
Data Security
EVV systems must comply with HIPAA requirements for protecting patient health information. Encryption, access controls, and audit logs are essential.
State Aggregator Connection
In states with EVV aggregators, agencies must ensure their system properly transmits data to the state repository. Regular test submissions verify connectivity.
For detailed compliance guidance, agencies should reference their state Medicaid agency and CMS resources at cms.gov.
Data Flow from EVV to Billing
The real power of EVV emerges when visit data flows seamlessly to billing:
Automated Time Capture
When caregivers clock out, visit duration is calculated automatically. This eliminates manual timesheet entry and associated errors.
Service Code Mapping
The EVV system maps visit types to appropriate billing codes (CPT codes, HCPCS codes, or state-specific codes). For example, a personal care visit might map to T1019.
Authorization Verification
Before creating billable claims, the system checks that services delivered match authorized services in the client’s care plan. Unauthorized services are flagged for review.
Claims Generation
Visit data, service codes, and authorization information combine to auto-generate claims in the format required by the payer (typically 837P electronic format for Medicaid).
EVV Data Attachment
Many states require EVV data to be submitted with claims or transmitted separately to state aggregators. Integrated systems handle this automatically.
Denial Prevention
By ensuring visit data is complete and accurate before claims submission, EVV significantly reduces denials due to missing information or time discrepancies.
Agencies using integrated platforms that combine electronic visit verification with billing and revenue management see the fastest reimbursement and lowest denial rates.
Common EVV Apps
The home care EVV market includes numerous solutions:
Mobile-First Solutions
Apps like CareSmartz360, WellSky, and Sandata focus on smartphone-based verification with GPS and biometric capabilities. These work well for agencies with tech-savvy caregivers.
Telephony Options
Systems like Provider Plus and Homecare Homebase offer robust phone-based verification for caregivers without smartphones or in areas with poor cellular coverage.
All-in-One Platforms
Comprehensive solutions integrate EVV with scheduling, billing, payroll, and care management. These eliminate the need for multiple systems and data transfers between vendors.
State-Mandated Systems
Some states require use of specific EVV vendors or systems. Agencies in these states have limited choice but benefit from state-supported implementation.
Specialty Solutions
Certain EVV systems specialize in specific service types like developmental disabilities, behavioral health, or pediatric care, offering tailored workflows and reporting.
When evaluating EVV apps, consider not just compliance features but also ease of use, integration capabilities, and total cost of ownership.
How Modern Home Care Software Solves This Problem
Standalone EVV systems create integration challenges, requiring data to be manually transferred or synchronized between multiple platforms. This introduces errors and delays.
Modern integrated home care platforms eliminate these issues by building EVV directly into comprehensive agency management systems. Visit verification, scheduling, billing, and payroll operate from a single database, ensuring data consistency.
When a caregiver clocks in through an integrated platform, that single action updates the schedule (marking the visit as started), creates payroll records (beginning time tracking), and prepares billing data (confirming service delivery). No duplicate entry, no synchronization delays, no integration errors.
Solutions designed for home care agencies provide this integrated approach, reducing administrative burden while improving accuracy and compliance.
Conclusion
Electronic Visit Verification works by electronically capturing visit details at the point of service, creating auditable records that flow automatically to billing and payroll systems. Understanding the EVV workflow—from clock-in methods to data transmission—helps agencies implement compliant systems successfully.
The technology combines GPS, telephony, biometrics, and mobile apps to verify caregiver presence and service delivery. When properly integrated with back-office systems, EVV transforms from a compliance requirement into an operational advantage.
Agencies should focus on selecting EVV solutions that not only meet federal and state requirements but also improve efficiency, reduce errors, and provide real-time visibility into care delivery.
FAQs
What’s the difference between EVV and time and attendance systems?
Traditional time and attendance systems track employee hours but don’t verify location or capture service-specific data. EVV must document the six federally required elements and verify that care was delivered at the correct location.
Can clients refuse EVV?
Federal regulations allow clients to opt out of EVV, but agencies must document the refusal and may need to use alternative verification methods acceptable to the state Medicaid agency. Some states don’t allow opt-outs.
How does EVV work in shared living situations?
When multiple clients live at the same address (like group homes), EVV systems use unique client identifiers and service codes to differentiate visits. Geofencing may be set up for the facility rather than individual rooms.
What happens if a caregiver forgets to clock in?
Most EVV systems allow supervisors to manually enter visit times with appropriate documentation and approval workflows. However, frequent manual entries may trigger compliance concerns during audits.
Does EVV replace care documentation?
No. EVV proves that a visit occurred but doesn’t document care activities, client condition, or progress notes. Agencies still need comprehensive care documentation systems alongside EVV.
