Office of AIDS

HIV Data Systems

The Office of AIDS uses multiple data systems to collect HIV program data from local health jurisdictions, providers and contractors. These systems are secure and kept up to date to ensure the confidentiality of the data collected. The data are collected to meet the requirements of funders, as well as to guide program implementation and improvement.

ADAP Enrollment System (AES)

The AIDS Drug Assistance Program (ADAP Enrollment System (AES) is a custom developed web-based solution used by Office of AIDS staff and enrollment workers at ADAP and Pre-Exposure Prophylaxis Assistance Program (PrEP-AP) sites throughout California. Data collected and processed in the AES includes client-level demographic characteristics, financial eligibility documentation, clinical laboratory test results and insurance coverage; enrollment site staff information; and medication, premium and out-of-pocket claims information. Data interfaces exchange eligibility information and claim payment information with separate Pharmacy Benefits Manager (PBM) and Insurance and Medical Benefits Manager (IBM/MBM) systems.

ADAP Annual Reports

HIV Care Connect (HCC)

HIV Care Connect (HCC) is a centralized HIV/AIDS client management system that allows for coordination of client services among medical care, treatment, and support providers, and provides comprehensive data for program reporting and monitoring. HCC is used by Ryan White HIV/AIDS Program and Housing Opportunities for Persons Living With AIDS (HOPWA) providers to automate, plan, manage, and report on client data. For system support and share feedback, please e-mail CEMS@cdph.ca.gov. When contacting CEMS, please do not include any confidential client information in e-mails.

Care Reports

Please Note: ARIES, the former HIV Care system, was taken offline as of September 30, 2025.

eHARS

The Enhanced HIV/AIDS Reporting System (eHARS) is a browser-based application provided by the Centers for Disease Control and Prevention (CDC). The Office of AIDS uses eHARS to collect, manage and report California’s HIV/AIDS case surveillance data to CDC. HIV/AIDS is a condition that is mandated by state laws and regulations to be reported by local health officers to CDPH.

LEO

Local Evaluation Online (LEO) is is an online system for tracking information about Office of AIDS (OA)-funded HIV education and prevention programs, including counseling and testing services.