{"summary":{"total_systems":13,"systems_with_data":11,"median_abs_variance_pct":26.2,"mean_abs_variance_pct":35.5,"systems_within_10pct":3,"systems_within_25pct":5},"methodology_note":"Verzi publishes per-system accuracy with public source URLs. The major enterprise data platforms do not publish per-system accuracy benchmarks. If you have ground-truth data for a system, we will publish your variance number with attribution.","results":[{"system_id":"CLEVELAND_CLINIC","metric":"physician_count","reported_value":6600,"our_value":7595,"delta":995,"pct_variance":15.076,"source_url":"https://my.clevelandclinic.org/about/overview/who-we-are/facts-figures","source_type":"system_about_page","reporting_year":2024,"methodology_note":"salaried physicians and researchers","measured_at":"2026-06-17T21:28:47.593746+00:00"},{"system_id":"HCA","metric":"physician_count","reported_value":4000,"our_value":3693,"delta":-307,"pct_variance":-7.675,"source_url":"https://hcahealthcare.com/about/","source_type":"system_about_page","reporting_year":2024,"methodology_note":"HCA employed physician estimate. Decomposed v2 into 14 divisions.","measured_at":"2026-06-17T21:28:47.593746+00:00"},{"system_id":"INTERMOUNTAIN","metric":"physician_count","reported_value":4600,"our_value":4812,"delta":212,"pct_variance":4.609,"source_url":"https://intermountainhealthcare.org/","source_type":"system_about_page","reporting_year":2024,"methodology_note":"physicians + advanced care providers combined","measured_at":"2026-06-17T21:28:47.593746+00:00"},{"system_id":"KAISER","metric":"physician_count","reported_value":25000,"our_value":25625,"delta":625,"pct_variance":2.5,"source_url":"https://about.kaiserpermanente.org/who-we-are/fast-facts","source_type":"system_about_page","reporting_year":2024,"methodology_note":"Permanente Medical Groups across 8 regions","measured_at":"2026-06-17T21:28:47.593746+00:00"},{"system_id":"MAYO","metric":"physician_count","reported_value":7300,"our_value":10041,"delta":2741,"pct_variance":37.548,"source_url":"https://en.wikipedia.org/wiki/Mayo_Clinic","source_type":"system_about_page","reporting_year":2024,"methodology_note":"Mayo fact sheet 2022: ~5,500 physicians/scientists + 2,500 residents/fellows","measured_at":"2026-06-17T21:28:47.593746+00:00"},{"system_id":"MGB","metric":"physician_count","reported_value":7500,"our_value":11882,"delta":4382,"pct_variance":58.427,"source_url":"https://www.massgeneralbrigham.org/en/about","source_type":"system_about_page","reporting_year":2024,"methodology_note":"system-wide","measured_at":"2026-06-17T21:28:47.593746+00:00"},{"system_id":"NORTHWELL","metric":"physician_count","reported_value":7300,"our_value":9214,"delta":1914,"pct_variance":26.219,"source_url":"https://www.northwell.edu/about-northwell","source_type":"system_about_page","reporting_year":2024,"methodology_note":"employed (13,500 credentialed includes voluntary)","measured_at":"2026-06-17T21:28:47.593746+00:00"},{"system_id":"NORTHWESTERN","metric":"physician_count","reported_value":5400,"our_value":4372,"delta":-1028,"pct_variance":-19.037,"source_url":"https://www.nm.org/about-us","source_type":"system_about_page","reporting_year":2024,"methodology_note":"per official site","measured_at":"2026-06-17T21:28:47.593746+00:00"},{"system_id":"NYU_LANGONE","metric":"physician_count","reported_value":3000,"our_value":5499,"delta":2499,"pct_variance":83.3,"source_url":"https://nyulangone.org/","source_type":"system_about_page","reporting_year":2024,"methodology_note":"Faculty Group Practice employed","measured_at":"2026-06-17T21:28:47.593746+00:00"},{"system_id":"SUTTER","metric":"physician_count","reported_value":12000,"our_value":6010,"delta":-5990,"pct_variance":-49.917,"source_url":"https://www.sutterhealth.org/about-us/sutter-health-overview","source_type":"system_about_page","reporting_year":2024,"methodology_note":"doctors; 14,000 including APPs","measured_at":"2026-06-17T21:28:47.593746+00:00"},{"system_id":"TENET","metric":"physician_count","reported_value":850,"our_value":null,"delta":null,"pct_variance":null,"source_url":"https://www.tenethealth.com/about/business-segments","source_type":"sec_10k","reporting_year":2024,"methodology_note":"Tenet Healthcare employed physicians per most recent 10-K","measured_at":"2026-06-17T21:28:47.593746+00:00"},{"system_id":"UHS","metric":"physician_count","reported_value":1500,"our_value":null,"delta":null,"pct_variance":null,"source_url":"https://www.uhsinc.com/about-uhs/","source_type":"system_about_page","reporting_year":2024,"methodology_note":"Universal Health Services","measured_at":"2026-06-17T21:28:47.593746+00:00"},{"system_id":"UPMC","metric":"physician_count","reported_value":5000,"our_value":9304,"delta":4304,"pct_variance":86.08,"source_url":"https://www.upmc.com/about/facts","source_type":"system_about_page","reporting_year":2024,"methodology_note":"employed (6,400 affiliated)","measured_at":"2026-06-17T21:28:47.593746+00:00"}]}