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Site-of-care shift trends for outpatient services

About the graphs

The graphs show how subservice line volumes shifted between outpatient care sites from 2014-2019. The underlying data comes from Optum’s de-identified Clinformatics® Data Mart which is derived from a database of administrative health claims for members of large commercial and Medicare Advantage health plans. This database represents nearly 2.7 billion
visit volumes. 1, 2, 3, 4

How to use the graphs

Use the drop-down menu at the top of the graph to choose your subservice line of interest. Hover over any data point to see what percentage of outpatient volumes were delivered in that specified care site for that year and download each tab’s data by clicking the download button in the bottom left corner of the graph.

We analyzed the source data for these graphs to identify what triggers rapid shift, predict how procedures might shift in the future and understand how shift patterns vary by payer type. Read the related content linked below for our findings.


1 Subservice line must have at least 1,000 volumes between 2014 to 2019 to be included.

2 Outpatient services defined using Advisory Board’s proprietary outpatient grouping methodology.

3 Care sites assigned via algorithm that considers each NPI’s CMS assigned taxonomy code, listed place of service, listed type of bill, and mix of coded procedures/services. Care sites include ASC, Clinic-other, DME/Pharmacy/Other supplier, Home care, HOPD, Hospice, Imaging, Lab, Managed care services, Mental health/behavioral/social health, Nursing/intermediate facility, Office, Other, Physical/occupational therapy/rehab, Retail, Swing bed, Transportation services, Urgent care, ED, Telehealth.

4 Each subservice line’s volumes are distributed across the top three care sites with any remaining volumes grouped into a fourth “All other care sites” category.

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