{"summary": {"total_systems": 12, "systems_with_data": 10, "median_abs_variance_pct": 37.5, "mean_abs_variance_pct": 38.3, "systems_within_10pct": 2, "systems_within_25pct": 4}, "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 The major enterprise data platforms do not publish per-system accuracy benchmarks.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": "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"}], "meta": {"as_of": "current"}}