Quarterly counts and allowed costs by procedure, diagnosis group, drug and 3-digit ZIP region from de-identified US claims, certified by expert determination with small cells suppressed.
Data product · Listing updated 11 Nov 2026
United States
Released about 75 days after quarter end
Aggregates built from billions of de-identified claim lines; no patient-level records
Mid-market, Enterprises, Academia and research
Claims from clearinghouse and pharmacy switch partners, de-identified before receipt
HIPAA expert-determination de-identification, aggregation to quarter and 3-digit ZIP, suppression of cells under 11
Aggregated claims statistics for market sizing and health economics, designed so that no individual patient can be identified.
Source claims come from clearinghouse and pharmacy switch partners and are de-identified before Willowbrook receives them. An independent statistician certifies the aggregates under HIPAA's expert determination method, and the certification is renewed annually. Willowbrook never delivers patient-level or encounter-level records, and no tokens or linkage keys are included. Every cell is an aggregate of at least 11 patients; smaller cells are suppressed and flagged, and complementary suppression prevents back-calculation. The aggregates represent a large share of US commercial, Medicare Advantage and managed Medicaid claims but are not a complete census; coverage notes by state and payer channel are delivered with each release. Buyers must agree not to attempt re-identification.
13 fields as documented by Willowbrook Health Data.
| Field | Type | Description | Example |
|---|---|---|---|
| quarter | string | Calendar quarter, for example 2026-Q2 | — |
| region_zip3 | string | 3-digit ZIP prefix | — |
| state | string | US state | — |
| payer_channel | string | commercial, medicare_advantage or managed_medicaid | — |
| procedure_code | string | Procedure code where relevant | — |
| diagnosis_group | string | ICD-10-CM category | — |
| ndc_product | string | Drug product for pharmacy rows | — |
| place_of_service | string | Place of service category | — |
| claim_count | integer | Number of claims in the cell | — |
| patient_count_band | string | Banded patient count, minimum 11 | — |
| total_allowed_usd | number | Sum of allowed amounts | — |
| avg_allowed_usd | number | Average allowed amount per claim | — |
| suppressed_flag | boolean | True when the cell is suppressed | — |
Real rows from the provider's sample file. Personal data is masked before anything is shown.
| quarterstring | region_zip3string | payer_channelstring | diagnosis_groupstring | claim_countstring | patient_count_bandstring | avg_allowed_usdstring |
|---|---|---|---|---|---|---|
| 2026-Q2 | 606 | commercial | E11 (type 2 diabetes) | 18420 | 5,000-9,999 | 142.80 |
| 2026-Q2 | 606 | medicare_advantage | I10 (essential hypertension) | 22975 | 10,000+ | 118.35 |
| 2026-Q2 | 597 | managed_medicaid | J45 (asthma) | 0 | suppressed | null |
Prices in USD, as published by Willowbrook Health Data
national aggregates
therapeutic-area cuts
Converted amounts use DataStoa display rates and are approximate. Willowbrook Health Data quotes the final price, taxes and terms.
Request detailed pricing1 country.
Time coverage: 2016 to present.
Provider-reported
Latency: Released about 75 days after quarter end
DataStoa has not audited these figures. Ask the provider how they are measured, or test them on a sample.
The licence is agreed directly between you and Willowbrook Health Data. This summary is provider-reported; the linked terms prevail.
Not listed: use in commercial products, AI / ML model training, AI retrieval and grounding, redistribution allowed, marketing and outreach. Ask Willowbrook Health Data if you need any of these.
US provider, clinical trial, claims and drug pricing data
Willowbrook Health Data turns public healthcare registries and de-identified claims into analysis-ready datasets for pharma, payers and health-tech companies. It works only with professional, trial, product and aggregated data, and never sells patient-level records.
Also available on: Snowflake Marketplace, AWS Data Exchange, Databricks Marketplace
What buyers say about Willowbrook Health Data. Reviews cover the provider, not only this listing.
from 2 reviews
Procedure volumes by region gave us a defensible market size for a new device. Small cells are suppressed, so rare procedures in small regions come back empty, which is the correct trade-off for de-identified data.
Carlos E., Market access analyst, Medical device maker
Provider-to-hospital and group-practice affiliations were more current than our previous source, which improved territory alignment. Price is at the high end, so we licensed the national file without the API.
Beth A., Commercial analytics director, Specialty pharma company