Submit Patient Level Administrative Data
About Us
To meet California’s needs in making informed decisions and through partnerships with healthcare facility data providers, HCAI has been collecting quality, timely, secure, and comprehensive inpatient discharges since 1983 — and emergency department and ambulatory surgery encounters, from both hospital-based ambulatory surgery centers and licensed freestanding ambulatory surgery clinics, since 2005. Data are submitted via HCAI’s secure data collection system.
What’s New
- Quick Notes 71: Reporting Social Security Numbers and New Warning Edits
Current SIERA Availability
Open for data submissions for the following Report Periods:
Inpatient
- July 1, 2025 – December 31, 2025
- Opens January 2026
Emergency Department
- July 1, 2025 – September 30, 2025
- Due November 14, 2025
Ambulatory Surgery
- July 1, 2025 – September 30, 2025
- Due November 14, 2025
Open for early record entry for the following Report Periods:
Inpatient
- July 1, 2025 – December 31, 2025
Emergency Department
- October 1, 2025 – December 31, 2025
Ambulatory Surgery
- October 1, 2025 – December 31, 2025
Contact Us
Patient Data Section Main Line: (916) 326-3935
Fax: (916) 327-1262
Email: PatientLevel@hcai.ca.gov
Patient Data Section
Office of Information Services
Department of Health Care Access and Information
2020 West El Camino Avenue, Suite 1100
Sacramento, CA 95833-1880
Support Staff Availability
The Patient-Level data submission system is supported Monday – Friday 8:00 a.m. to 5:00 p.m. PST, excluding State of California observed holidays. Due to routine maintenance, the system may be unavailable during non-supported hours.