# Part D insulin beneficiary cost sharing (CMS SPUF member), 2023-Q4 to 2026-Q2

`drug_silver.fact_part_d_insulin_cost_share` · Drugs and formularies · status live · 441,006 rows

The quarterly SPUF's insulin beneficiary cost file: per Part D plan, tier and days-supply code, the insulin copay or coinsurance at preferred / standard retail and mail-order pharmacies, 2023-Q4 onward. 2026-Q2: 43,057 rows for 5,496 plans; the 30-day preferred-retail copay tops out at $35.

**Grain.** One row per (report_quarter, contract_id, plan_id, segment_id, tier, days_supply).

| column | type | meaning |
|---|---|---|
| contract_id | string |  |
| plan_id | string |  |
| segment_id | string |  |
| tier | int |  |
| days_supply | int |  |
| copay_amt_pref_insln | double |  |
| copay_amt_nonpref_insln | double |  |
| copay_amt_mail_pref_insln | double |  |
| copay_amt_mail_nonpref_insln | double |  |
| coin_amt_pref_insln | double |  |
| coin_amt_nonpref_insln | double |  |
| coin_amt_mail_pref_insln | double |  |
| coin_amt_mail_nonpref_insln | double |  |
| report_quarter | 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 drug_silver.fact_part_d_insulin_cost_share WHERE ... LIMIT 100`; read `describe_data_source("drug_silver.fact_part_d_insulin_cost_share")` first.