medicare shared savings program
msspDefinition
ISO-11179 Definition
The Centers for Medicare and Medicaid Services program that enables groups of providers to form Accountable Care Organizations and share in the savings generated when they deliver high-quality care to Medicare fee-for-service beneficiaries at costs below a risk-adjusted expenditure benchmark. Established by the Affordable Care Act in 2010, the MSSP is the largest federal value based care initiative with hundreds of ACOs serving millions of Medicare beneficiaries. MSSP participants choose between one-sided risk tracks that share only in savings and two-sided risk tracks that accept both upside and downside financial risk.
Quality performance on a defined set of HEDIS and patient experience measures determines the percentage of savings an ACO can retain. Healthcare data teams build MSSP performance analytics that calculate attributed beneficiary total cost of care, measure quality performance across MSSP measure domains, project shared savings eligibility throughout the performance year, and produce CMS-required quality reporting submissions that demonstrate ACO performance on minimum attainment thresholds.
Standard Abbreviation
mssp
Category
Production DDL — FACT_QUALITY_MEASURE
CREATE OR REPLACE TABLE FACT_QUALITY_MEASURE (
qlty_key INTEGER NOT NULL -- surrogate key,
mbr_key INTEGER NOT NULL -- FK to DIM_MEMBER,
plan_key INTEGER NOT NULL -- FK to DIM_PLAN,
meas_yr SMALLINT -- measurement year,
hedis_meas_cd VARCHAR(20) -- HEDIS measure code,
denom_ind CHAR(1) -- denominator eligible,
numer_ind CHAR(1) -- numerator met,
excl_ind CHAR(1) -- exclusion indicator,
gap_open_ind CHAR(1) -- care gap open,
star_rtg_nbr DECIMAL(3,1) -- star rating,
qlty_scr DECIMAL(5,2) -- quality score,
perf_thrsh_pct DECIMAL(5,2) -- performance threshold,
raf_scr DECIMAL(10,3) -- risk adjustment factor,
outreach_cnt SMALLINT -- outreach attempts,
load_dt TIMESTAMP_NTZ NOT NULL -- load timestamp
);
Standard Snowflake DDL for the canonical quality table. Convert to BigQuery or Databricks →
Why This Term Matters
Quality measure data determines how payers and providers are rated and reimbursed under CMS Stars, HEDIS, and value-based care contracts. Data engineers who understand quality terminology build measure calculation pipelines that correctly attribute patients, apply denominator exclusions, and flag documentation gaps before submission deadlines. Incorrect quality data directly affects star ratings, pay-for-performance bonuses, and Medicare Advantage plan bids.
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