If you bill Medi-Cal for personal care or home health visits in California, Electronic Visit Verification is mandatory. California EVV requirements mean every covered visit has to be logged electronically through CalEVV (or an approved alternate vendor) with six specific data elements, and claims that arrive without a matching, compliant record can be denied. Both deadlines that phased the system in have passed, so if you’re delivering services now, you should already be registered, trained, and submitting data on every visit.
Who Has to Use CalEVV
EVV applies to any Medi-Cal-funded service classified as personal care (PCS) or home health care (HHCS). The obligation follows the service code on the claim, not the size of your organization. Programs covered include:
- In-Home Supportive Services (IHSS), both self-directed and agency-model.
- Waiver Personal Care Services (WPCS).
- Home and Community-Based Alternatives (HCBA) Waiver.
- Multipurpose Senior Services Program (MSSP), under both the 1915(c) and 1115 waivers.
- Department of Developmental Services (DDS) 1915(c) Home and Community-Based Waivers and the Self-Determination Program.
- AIDS Medi-Cal Waiver.
- Agency-based home health care services billing Medi-Cal.1California Office of Systems Integration. EVV Phase II
Both agency-based providers and independent caregivers fall under the rule. Individual IHSS providers usually use the state-provided tools; agencies can choose the state system or a certified third-party vendor. The distinction between an independent IHSS or WPCS provider and an agency provider matters most on the enforcement side, covered further down.
The Six Data Elements Every Visit Must Capture
Federal law sets a fixed list of information that has to be recorded for every visit, no matter which system you use:2California Department of Health Care Services. CalEVV User Guide for Alternate EVV Providers
- Type of service performed, matching the authorized care plan.
- Individual receiving the service.
- Individual providing the service.
- Date of service.
- Location of service delivery, captured by GPS at check-in and check-out.
- Start and end time, recorded in real time when the caregiver checks in and out.
One point that trips people up: check-in and check-out times are used to verify the visit, not to calculate pay. In IHSS, providers are paid on reported hours worked, not on the raw span between the two timestamps.3California Department of Social Services. Electronic Visit Verification Help – IHSS Clocking in a few minutes early while you wait to start does not inflate paid hours.
Live-In Provider Exemption
If you live in the same home as the recipient you serve, you don’t have to complete real-time GPS check-in and check-out. Federal law limits EVV to services “requiring an in-home visit by a provider,” and a live-in caregiver is already in the home.4Office of the Law Revision Counsel. 42 USC 1396b In IHSS, live-in providers self-certify their living arrangement by submitting form SOC 2298. Once it’s on file, you still submit timesheets electronically through the Electronic Services Portal, the Telephone Timesheet System, or the IHSS EVV Mobile App, but you skip the location verification.3California Department of Social Services. Electronic Visit Verification Help – IHSS
How to Submit EVV Data
California uses an open-model system. You can use the state-provided CalEVV platform at no cost, or pick an approved alternate vendor. Either way, all visit data ends up at the CalEVV Aggregator operated by Sandata, which is the state’s central repository.5California Department of Health Care Services. CalEVV User Guide for Alternate EVV Providers
Using the State System
IHSS and WPCS providers can capture visits through the Electronic Services Portal (ESP), the IHSS EVV Mobile App, or the Telephone Timesheet System (TTS) using the recipient’s landline. Non-live-in providers check in at the start of a visit and check out at the end, selecting whether services are delivered in the home or in the community. That information feeds directly into the electronic timesheet.3California Department of Social Services. Electronic Visit Verification Help – IHSS
Agency providers using CalEVV directly can enter visits through the CalEVV web portal, use Sandata’s on-demand entry, or upload records in bulk.6California Department of Health Care Services. About California Electronic Visit Verification
Using an Alternate Vendor
If your agency already runs a third-party scheduling or visit verification platform, you can keep it, but the vendor has to be certified to interface with the Sandata Aggregator. The sequence: self-register in CalEVV and identify your vendor, the vendor contacts Sandata to begin certification testing, and once testing passes, Sandata issues production credentials. Your vendor then transmits all six data elements to the Aggregator in the required format.2California Department of Health Care Services. CalEVV User Guide for Alternate EVV Providers Corrections have to be made in your source system and resubmitted; you cannot edit records directly in the Aggregator.
Training and Registration
DHCS states that all impacted providers “must be registered, trained, and using either the CalEVV system or an Alternate EVV system.”6California Department of Health Care Services. About California Electronic Visit Verification Federal law requires the state to give providers the chance to train before they’re expected to use the system.7Centers for Medicare & Medicaid Services. EVV Requirements in the 21st Century Cures Act Free options include:
- Training Road Show 2.0, in-person sessions held across the state on CalEVV tools and compliance.
- Weekly virtual drop-in hours, held every Friday from 1:30 to 2:30 PM PST, launched in January 2026.
- On-demand training videos under 20 minutes each covering data entry, visit capture, visit maintenance, and group visits.
- Quick reference guides for self-registration, provider identifiers, and multi-factor authentication.
Alternate EVV vendors have separate documentation, including a vendor-specific user guide and specification files. If you’re switching between the state system and a third-party vendor in either direction, data has to flow correctly to the Aggregator from day one of the switch.
What Happens If You Don’t Comply
Consequences depend on what kind of provider you are. California draws a clear line between independent IHSS and WPCS providers on one side and agency-based providers on the other.
Agency Providers
Under Welfare and Institutions Code section 14043.51, DHCS can take escalating action against agencies that fail to meet EVV requirements:8California Legislative Information. California Welfare and Institutions Code WIC 14043.51
- Technical assistance to bring the provider into compliance.
- A required corrective action plan.
- Recovery of overpayments for services lacking proper EVV verification.
- Enrollment restrictions or monetary sanctions.
- Other remedial action DHCS deems appropriate.
At the claim level the consequence is simpler: without a compliant EVV record, the claim can be denied. No verification, no reimbursement.
Individual IHSS and WPCS Providers
The same statute explicitly carves out individual IHSS and WPCS providers who are not employed by an agency. They are not subject to the enforcement actions above and fall instead under Welfare and Institutions Code sections 10836, 12305.82, and 12305.83, which govern EVV system development for self-directed care programs.8California Legislative Information. California Welfare and Institutions Code WIC 14043.51
If a Claim Is Denied
Start by checking the record in the CalEVV system or Aggregator. Missing or mismatched data elements are the most common cause of denials. If you used an alternate vendor, confirm the visit data transmitted correctly, and remember that any correction has to be made in your source system and resubmitted to the Aggregator.2California Department of Health Care Services. CalEVV User Guide for Alternate EVV Providers
For Medi-Cal fee-for-service claims, use the standard Medi-Cal provider dispute resolution process. Managed care plan claims follow each plan’s own procedures. Before filing, gather documentation that the visit occurred as billed, including system logs, screenshots, or error reports from your EVV platform. The CalEVV team’s Friday drop-in sessions are a practical way to troubleshoot data issues before they turn into formal disputes.