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Healthcare Data GlossaryData Standards

OSCAR: Definition and Healthcare Context

Full name: Online Survey, Certification, and Reporting System

The Online Survey, Certification, and Reporting System (OSCAR) was the CMS database through which state survey agencies recorded inspection and certification data for Medicare- and Medicaid-participating health care facilities, including nursing homes, hospitals, home health agencies, and intermediate care facilities. State surveyors submitted deficiency citations, waivers, complaints, and remedy actions into OSCAR following on-site visits. CMS used OSCAR data to populate early versions of Nursing Home Compare. The system was succeeded by CASPER (Certification and Survey Provider Enhanced Reports), which consolidates the OSCAR-originated survey records and serves as the underlying data source for the Health Inspections domain published on Care Compare.

Last updated: 2026-06-09Reviewed by: Dr. Jennifer Montecillo, MD — Gullas College of Medicine, 2019. Non-practicing medical reviewer.

How it’s used

  • CMS Care Compare (nursing homes): health inspection data on Care Compare — deficiency citations, scope-and-severity scores, and fine histories — originates from the state survey process originally recorded in OSCAR and now maintained in CASPER.
  • CMS Provider of Services (POS) File: certification status data in the POS file is derived from the OSCAR/CASPER survey and certification records that state agencies maintain after standard and complaint surveys.
  • Fonteum NH Deficiency & Harm Rate study: the 418,148 deficiency citations and 14,635 facilities analyzed in Fonteum's nursing home deficiency research trace back to the OSCAR/CASPER survey database populated by state surveyors.

Frequently asked questions

What was the OSCAR system?
OSCAR (Online Survey, Certification, and Reporting System) was the CMS database where state survey agencies recorded nursing home and facility inspection results, deficiency citations, and certification status.
Is OSCAR still in use?
OSCAR was replaced by CASPER (Certification and Survey Provider Enhanced Reports), which now serves the same function and feeds Health Inspections data into CMS Care Compare.
What replaced OSCAR?
CASPER replaced OSCAR as the primary CMS survey and certification data system. Historical OSCAR data was migrated into CASPER, and all current survey submissions go into CASPER.

Related terms

  • CMS Care Compare
  • CMS Star Rating
  • SNF
  • CCN
  • F-Tag
  • Survey Deficiency

Authoritative sources

  • CMS: Nursing Home Survey & Certification overview↗
  • CMS Care Compare — nursing homes↗
  • CMS: Certification and Compliance — CASPER↗
← All glossary terms

Compliance posture

Methodology · Corrections log · Editorial policy

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Reviewed by Jennifer Montecillo, MD, medical reviewer. Non-practicing medical reviewer.

© 2026 Fonteum, Inc. All rights reserved.

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