Medicare Advantage, Part D, Medicaid

MA/Part D enrollment, CPSC county grain, every row CMS publishes (parse revision 4)

medicare_silver.enrollment_monthly_county_v4·live·silver

Rows

630,792,948

Columns

History

N/A

Card

nocolumns only

Typed tools

What it is

1CMS CPSC (Contract/Plan/State/County) monthly MA and Part D enrollment, re-parsed from the bronze bytes the served table was built from (parse revision 4, defects CPSC-1/2/3).
2It keeps every row CMS publishes for a contract: blank FIPS with only an SSA code (county_code_system 'ssa'), blank State, no county code ('none'), blank Plan ID; an SSA code is never written into county_fips.
3Same columns as medicare_silver.enrollment_monthly_county plus county_code_system.
4Read it through medicare_semantic.vw_enrollment_monthly_county_v3, which adds in_revision3_table and the corrected parent names.

Grain

Key	Grain
N/A	1One row per (contract_id, plan_id, state_code, county_fips, county_ssa, report_month) as CMS publishes it: 630,792,948 rows in 243 months, 2006-07..2026-09, 0 duplicate native keys in every month (Tracker run 20261007T010009Z-cd1f8a6d). plan_id is '' where CMS left Plan ID blank; state_code and county_fips are NULL where CMS left them blank.

Columns (23)

Column	Type	Meaning
`contract_id`	string
`plan_id`	string
`state_code`	string
`county_fips`	string
`report_month`	date
`enrollment_count`	int
`enrollment_lower_bound`	int
`enrollment_upper_bound`	int
`suppression_reason_code`	string
`parent_org_raw`	string
`enrollment_grain_era`	string
`observed_period`	date
`asserted_at`	date
`effective_period_start`	date
`effective_period_end`	date
`cms_vintage_sequence`	int
`parse_revision`	int
`parser_artifact_hash`	string
`source_url`	string
`sha256_content_hash`	string
`county_ssa`	string
`county_name_raw`	string
`county_code_system`	string

Query it

describe_data_source(source_fqn="medicare_silver.enrollment_monthly_county_v4")     # the card, live
query_substrate(sql="SELECT * FROM medicare_silver.enrollment_monthly_county_v4 WHERE <filter> LIMIT 100")

Item	Value
Typed tools that read it	get_county_view, get_market_share
Identity key	`contract_id`
Join	`how_to_join(source_fqn="medicare_silver.enrollment_monthly_county_v4")`
Raw door	Athena: medicare_semantic.vw_enrollment_monthly_county_v3 (preferred: in_revision3_table, corrected parent names); medicare_silver.enrollment_monthly_county_v4 (pin report_month and a partition range on observed_period)
Company names	`parent_org_raw` resolve to a permanent Vlada ID: `resolve_entity(text=<name>)`; the company pages hold owners and holdings
Note	Data Tracker wave-1A, CPSC-1/2/3 (#3115 code, #3244 rebuild and acceptance). The revision-3 table medicare_silver.enrollment_monthly_county is unchanged and stays the rollback.

This page as markdown: /docs-md/data/medicare_silver_enrollment_monthly_county_v4.md · every page in one file: /llms-full.txt