# ChatGPT Named Most Final-Shortlist Medical Providers in Its First Search Queries — data package

Version: 1.0  
Fieldwork: 2026-08-18, 13:36–14:10 UTC  
Publication date: 2026-08-18  
Market and language: United States, English  
Author: Evgeniy Yudin  
Methodology reviewed by: Boris Teplyakov, SEO Lead  
License: [CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/)

## Direct result

Across 180 commercial provider-selection responses, 612 of 720 final provider positions (85.0%) were occupied by organizations already named in the query strings of the first returned web-search action. At least one provider appeared in that first action in 179 of 180 responses (99.4%).

## Package contents

- `chatgpt-medical-provider-shortlists-v1.0.csv` and `chatgpt-medical-provider-shortlists-v1.0.json`: overall and scenario summaries; the JSON also contains every analytical table.
- `chatgpt-medical-provider-shortlists-v1.0.xlsx`: formatted workbook with summary, scenario, segment, response, stability, prompt, dictionary, and methodology sheets.
- `scenario-metrics.csv`: three scenario-level estimates and exact-prompt-cell-clustered 95% intervals, with their fixed seeds and bootstrap settings.
- `segment-metrics.csv`: descriptive cuts by scenario, service line, metro, their selected intersections, and broad-comparison phrasing.
- `response-metrics.csv`: 180 anonymous response-level count rows that reproduce the primary numerators and denominators without revealing provider names or raw output.
- `cell-stability.csv`: 72 exact-prompt-cell stability rows.
- `stability-pairs.csv`: 144 repeat-pair rows with public response numbers, intersections, unions, and Jaccard values, but no provider names or sets.
- `prompt-manifest.csv`: 72 frozen brand-free commercial prompt cells with exact wording.
- `data-dictionary.csv`: field definitions.
- `dataset-metadata.json`: machine-readable scope, configuration, counts, license, and interpretation boundary.
- Four SVG/PNG research graphics.
- `CITATION.cff` and `citation.bib`: citation metadata.
- `manifest.json` and `SHA256SUMS.txt`: file inventory and integrity hashes.

## Public-data boundary

This package does not contain raw API payloads, full answers, returned query text, provider-level mention records, response IDs, credentials, or internal collection identifiers. Public row numbers are package-specific sequential keys.

## Reviewer disclosure

Boris Teplyakov reviewed the research methodology as SEO Lead. This was not a clinical subject-matter review or an assessment of the providers named in the responses.

Canonical report: https://rotgar.com/medical/resources/chatgpt-medical-provider-shortlists