# CMS MA and Part D warning letters, September 2024 - September 2026

`medicare_silver.fact_ma_part_d_warning_letter` · Medicare Advantage, Part D, Medicaid · status live · 3,079 rows

Every warning letter CMS issued to an MA or Part D sponsor since September 2024, one row per contract named, per monthly edition: compliance issue id, date sent, issue type, topic, summary, parent and contact. 195 letters (115 Drug Benefit, 60 Health and Drug, 20 Health Benefit) to 2026-05-15.

**Grain.** One row per contract per warning letter per monthly edition; is_current marks each letter's newest edition.

| column | type | meaning |
|---|---|---|
| edition | string |  |
| report_month | date |  |
| row_seq | int |  |
| issue_row_seq | int |  |
| compliance_issue_id | string |  |
| contract_id | string |  |
| contract_name | string |  |
| contracts_on_issue | int |  |
| all_contracts_terminated | boolean |  |
| date_letter_sent | date |  |
| report_created_raw | string |  |
| summary_format | string |  |
| source_member | string |  |
| source_member_sha256 | string |  |
| contracts_raw | string |  |
| parent_organization | string |  |
| organization_contact_name | string |  |
| organization_contact_phone | string |  |
| compliance_issue_id_raw | string |  |
| date_letter_sent_raw | string |  |
| issue_type | string |  |
| issue_topic | string |  |
| issue_summary | string |  |
| letter_name | string |  |
| type_of_action | string |  |
| contract_plan_type | string |  |
| contract_count_raw | string |  |
| csv_issue_topic | 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 |  |
| source_id | string |  |
| is_current | boolean |  |
| bronze_object_key | string |  |
| s3_version_id | string |  |
| vintage_tag | string |  |
| drug_source_version_id | string |  |

Query it: `query_substrate` with `SELECT ... FROM medicare_silver.fact_ma_part_d_warning_letter WHERE ... LIMIT 100`; read `describe_data_source("medicare_silver.fact_ma_part_d_warning_letter")` first.