Skip to main content
U.S. flag

An official website of the United States government

This site is currently in beta, and your feedback is helping shape its ongoing development.

Patient Origin/Market Share (Pivot Profile)–Inpatient, Emergency Department, and Ambulatory Surgery

Published by Department of Health Care Access and Information | State of California | Metadata Last Checked: November 28, 2025 | Last Modified: 2025-10-08T17:19:30.157304
This dataset contains annual Excel pivot tables that identify where a facility’s patients come from (Patient Origin) and where patients from a specific area go to (Market Share) for hospital inpatient, emergency department, and ambulatory surgery treatment. The Patient Origin Report shows the ZIP codes of origin (based on a selected facility or facility county) and the Market Share Report lists the destination facilities (based on a selected patient ZIP code or patient county). Note: Physician-owned ambulatory surgery clinics do not report their data to HCAI and, therefore, are not included here.

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov