{
  "_source_nppes": "U.S. Centers for Medicare & Medicaid Services NPI Registry (NPPES) — public API",
  "_source_population": "U.S. Census Bureau Population Estimates Program, 2024 Vintage (V2024)",
  "_specialty": "Gastroenterology",
  "_specialty_slug": "gastroenterologist-supply-by-state-2026",
  "_release_date": "2026-05-06",
  "_taxonomies": [
    "207RG0100X"
  ],
  "_underserved_threshold_per_100k": 4,
  "_underserved_definition": "States below the stated threshold of 4 gastroenterologists per 100,000 residents in the active NPPES dataset. Stated baseline cutoff aligned with American Gastroenterological Association (AGA) and American Society for Gastrointestinal Endoscopy (ASGE) workforce literature, which places national-average gastroenterologist density around 5–6 per 100,000 with bottom-quartile states below 4. We use 4 / 100k as the underserved cutoff. Stated explicitly here; not a clinical or regulatory definition.",
  "_summary": {
    "total_active_providers": 21236,
    "national_per_100k": 6.24,
    "jurisdictions": 51,
    "underserved_count": 6,
    "underserved_population": 14749571,
    "highest_density": {
      "code": "DC",
      "name": "District of Columbia",
      "per_100k": 13.96,
      "count": 98
    },
    "lowest_density": {
      "code": "WY",
      "name": "Wyoming",
      "per_100k": 2.21,
      "count": 13
    }
  },
  "rows": [
    {
      "code": "AK",
      "name": "Alaska",
      "count": 27,
      "pop": 740133,
      "per_100k": 3.6479929958534485,
      "rank_density": 48,
      "rank_count": 50,
      "quartile": 4,
      "underserved": true
    },
    {
      "code": "AL",
      "name": "Alabama",
      "count": 234,
      "pop": 5157699,
      "per_100k": 4.5369068648635755,
      "rank_density": 37,
      "rank_count": 27,
      "quartile": 3,
      "underserved": false
    },
    {
      "code": "AR",
      "name": "Arkansas",
      "count": 121,
      "pop": 3088354,
      "per_100k": 3.9179446397660374,
      "rank_density": 46,
      "rank_count": 33,
      "quartile": 4,
      "underserved": true
    },
    {
      "code": "AZ",
      "name": "Arizona",
      "count": 417,
      "pop": 7582384,
      "per_100k": 5.499589574993828,
      "rank_density": 29,
      "rank_count": 17,
      "quartile": 3,
      "underserved": false
    },
    {
      "code": "CA",
      "name": "California",
      "count": 2240,
      "pop": 39431263,
      "per_100k": 5.680771625296405,
      "rank_density": 25,
      "rank_count": 1,
      "quartile": 2,
      "underserved": false
    },
    {
      "code": "CO",
      "name": "Colorado",
      "count": 343,
      "pop": 5957493,
      "per_100k": 5.757455359158627,
      "rank_density": 23,
      "rank_count": 23,
      "quartile": 2,
      "underserved": false
    },
    {
      "code": "CT",
      "name": "Connecticut",
      "count": 351,
      "pop": 3675069,
      "per_100k": 9.550841086248992,
      "rank_density": 3,
      "rank_count": 21,
      "quartile": 1,
      "underserved": false
    },
    {
      "code": "DC",
      "name": "District of Columbia",
      "count": 98,
      "pop": 702250,
      "per_100k": 13.955144179423284,
      "rank_density": 1,
      "rank_count": 37,
      "quartile": 1,
      "underserved": false
    },
    {
      "code": "DE",
      "name": "Delaware",
      "count": 47,
      "pop": 1051917,
      "per_100k": 4.468033124286422,
      "rank_density": 39,
      "rank_count": 46,
      "quartile": 3,
      "underserved": false
    },
    {
      "code": "FL",
      "name": "Florida",
      "count": 1556,
      "pop": 23372215,
      "per_100k": 6.657477693064179,
      "rank_density": 13,
      "rank_count": 3,
      "quartile": 1,
      "underserved": false
    },
    {
      "code": "GA",
      "name": "Georgia",
      "count": 545,
      "pop": 11180878,
      "per_100k": 4.874393585190716,
      "rank_density": 33,
      "rank_count": 13,
      "quartile": 3,
      "underserved": false
    },
    {
      "code": "HI",
      "name": "Hawaii",
      "count": 80,
      "pop": 1446146,
      "per_100k": 5.531944907360668,
      "rank_density": 26,
      "rank_count": 44,
      "quartile": 2,
      "underserved": false
    },
    {
      "code": "IA",
      "name": "Iowa",
      "count": 135,
      "pop": 3241488,
      "per_100k": 4.164753964845775,
      "rank_density": 42,
      "rank_count": 31,
      "quartile": 4,
      "underserved": false
    },
    {
      "code": "ID",
      "name": "Idaho",
      "count": 83,
      "pop": 2001619,
      "per_100k": 4.14664329225492,
      "rank_density": 43,
      "rank_count": 42,
      "quartile": 4,
      "underserved": false
    },
    {
      "code": "IL",
      "name": "Illinois",
      "count": 905,
      "pop": 12710158,
      "per_100k": 7.120289141960312,
      "rank_density": 11,
      "rank_count": 6,
      "quartile": 1,
      "underserved": false
    },
    {
      "code": "IN",
      "name": "Indiana",
      "count": 381,
      "pop": 6924275,
      "per_100k": 5.502381115712475,
      "rank_density": 28,
      "rank_count": 20,
      "quartile": 3,
      "underserved": false
    },
    {
      "code": "KS",
      "name": "Kansas",
      "count": 107,
      "pop": 2970606,
      "per_100k": 3.6019586575937708,
      "rank_density": 50,
      "rank_count": 36,
      "quartile": 4,
      "underserved": true
    },
    {
      "code": "KY",
      "name": "Kentucky",
      "count": 234,
      "pop": 4588372,
      "per_100k": 5.099848050681157,
      "rank_density": 32,
      "rank_count": 28,
      "quartile": 3,
      "underserved": false
    },
    {
      "code": "LA",
      "name": "Louisiana",
      "count": 266,
      "pop": 4597740,
      "per_100k": 5.785451112938095,
      "rank_density": 22,
      "rank_count": 26,
      "quartile": 2,
      "underserved": false
    },
    {
      "code": "MA",
      "name": "Massachusetts",
      "count": 717,
      "pop": 7136171,
      "per_100k": 10.04740497389987,
      "rank_density": 2,
      "rank_count": 9,
      "quartile": 1,
      "underserved": false
    },
    {
      "code": "MD",
      "name": "Maryland",
      "count": 515,
      "pop": 6263220,
      "per_100k": 8.22260754053027,
      "rank_density": 6,
      "rank_count": 15,
      "quartile": 1,
      "underserved": false
    },
    {
      "code": "ME",
      "name": "Maine",
      "count": 85,
      "pop": 1405012,
      "per_100k": 6.049770393420127,
      "rank_density": 19,
      "rank_count": 41,
      "quartile": 2,
      "underserved": false
    },
    {
      "code": "MI",
      "name": "Michigan",
      "count": 557,
      "pop": 10140459,
      "per_100k": 5.492848006189858,
      "rank_density": 30,
      "rank_count": 11,
      "quartile": 3,
      "underserved": false
    },
    {
      "code": "MN",
      "name": "Minnesota",
      "count": 462,
      "pop": 5793151,
      "per_100k": 7.974934539078991,
      "rank_density": 8,
      "rank_count": 16,
      "quartile": 1,
      "underserved": false
    },
    {
      "code": "MO",
      "name": "Missouri",
      "count": 411,
      "pop": 6245466,
      "per_100k": 6.580773956659119,
      "rank_density": 14,
      "rank_count": 18,
      "quartile": 2,
      "underserved": false
    },
    {
      "code": "MS",
      "name": "Mississippi",
      "count": 126,
      "pop": 2943045,
      "per_100k": 4.281280102750722,
      "rank_density": 41,
      "rank_count": 32,
      "quartile": 4,
      "underserved": false
    },
    {
      "code": "MT",
      "name": "Montana",
      "count": 47,
      "pop": 1137233,
      "per_100k": 4.13283821345318,
      "rank_density": 44,
      "rank_count": 47,
      "quartile": 4,
      "underserved": false
    },
    {
      "code": "NC",
      "name": "North Carolina",
      "count": 702,
      "pop": 11046024,
      "per_100k": 6.355227908250063,
      "rank_density": 17,
      "rank_count": 10,
      "quartile": 2,
      "underserved": false
    },
    {
      "code": "ND",
      "name": "North Dakota",
      "count": 32,
      "pop": 796568,
      "per_100k": 4.017233933575037,
      "rank_density": 45,
      "rank_count": 49,
      "quartile": 4,
      "underserved": false
    },
    {
      "code": "NE",
      "name": "Nebraska",
      "count": 90,
      "pop": 2005465,
      "per_100k": 4.487737257942672,
      "rank_density": 38,
      "rank_count": 40,
      "quartile": 3,
      "underserved": false
    },
    {
      "code": "NH",
      "name": "New Hampshire",
      "count": 112,
      "pop": 1409032,
      "per_100k": 7.948719404527363,
      "rank_density": 9,
      "rank_count": 35,
      "quartile": 1,
      "underserved": false
    },
    {
      "code": "NJ",
      "name": "New Jersey",
      "count": 751,
      "pop": 9500851,
      "per_100k": 7.904555076171598,
      "rank_density": 10,
      "rank_count": 8,
      "quartile": 1,
      "underserved": false
    },
    {
      "code": "NM",
      "name": "New Mexico",
      "count": 97,
      "pop": 2130256,
      "per_100k": 4.5534433420208655,
      "rank_density": 36,
      "rank_count": 38,
      "quartile": 3,
      "underserved": false
    },
    {
      "code": "NV",
      "name": "Nevada",
      "count": 118,
      "pop": 3267467,
      "per_100k": 3.6113601147310748,
      "rank_density": 49,
      "rank_count": 34,
      "quartile": 4,
      "underserved": true
    },
    {
      "code": "NY",
      "name": "New York",
      "count": 1887,
      "pop": 19867248,
      "per_100k": 9.49804421830341,
      "rank_density": 4,
      "rank_count": 2,
      "quartile": 1,
      "underserved": false
    },
    {
      "code": "OH",
      "name": "Ohio",
      "count": 761,
      "pop": 11883304,
      "per_100k": 6.403942876492935,
      "rank_density": 16,
      "rank_count": 7,
      "quartile": 2,
      "underserved": false
    },
    {
      "code": "OK",
      "name": "Oklahoma",
      "count": 155,
      "pop": 4095393,
      "per_100k": 3.784740560918085,
      "rank_density": 47,
      "rank_count": 29,
      "quartile": 4,
      "underserved": true
    },
    {
      "code": "OR",
      "name": "Oregon",
      "count": 277,
      "pop": 4272371,
      "per_100k": 6.483519338559315,
      "rank_density": 15,
      "rank_count": 25,
      "quartile": 2,
      "underserved": false
    },
    {
      "code": "PA",
      "name": "Pennsylvania",
      "count": 1059,
      "pop": 13078751,
      "per_100k": 8.097103461943728,
      "rank_density": 7,
      "rank_count": 5,
      "quartile": 1,
      "underserved": false
    },
    {
      "code": "RI",
      "name": "Rhode Island",
      "count": 94,
      "pop": 1112308,
      "per_100k": 8.450896694081136,
      "rank_density": 5,
      "rank_count": 39,
      "quartile": 1,
      "underserved": false
    },
    {
      "code": "SC",
      "name": "South Carolina",
      "count": 319,
      "pop": 5478831,
      "per_100k": 5.8224099264970945,
      "rank_density": 21,
      "rank_count": 24,
      "quartile": 2,
      "underserved": false
    },
    {
      "code": "SD",
      "name": "South Dakota",
      "count": 51,
      "pop": 924669,
      "per_100k": 5.515487163514728,
      "rank_density": 27,
      "rank_count": 45,
      "quartile": 3,
      "underserved": false
    },
    {
      "code": "TN",
      "name": "Tennessee",
      "count": 397,
      "pop": 7227750,
      "per_100k": 5.49271903427761,
      "rank_density": 31,
      "rank_count": 19,
      "quartile": 3,
      "underserved": false
    },
    {
      "code": "TX",
      "name": "Texas",
      "count": 1510,
      "pop": 31290831,
      "per_100k": 4.825694785798434,
      "rank_density": 34,
      "rank_count": 4,
      "quartile": 3,
      "underserved": false
    },
    {
      "code": "UT",
      "name": "Utah",
      "count": 155,
      "pop": 3503613,
      "per_100k": 4.424004591831347,
      "rank_density": 40,
      "rank_count": 30,
      "quartile": 4,
      "underserved": false
    },
    {
      "code": "VA",
      "name": "Virginia",
      "count": 542,
      "pop": 8811195,
      "per_100k": 6.151265520738107,
      "rank_density": 18,
      "rank_count": 14,
      "quartile": 2,
      "underserved": false
    },
    {
      "code": "VT",
      "name": "Vermont",
      "count": 37,
      "pop": 648493,
      "per_100k": 5.705535757517814,
      "rank_density": 24,
      "rank_count": 48,
      "quartile": 2,
      "underserved": false
    },
    {
      "code": "WA",
      "name": "Washington",
      "count": 555,
      "pop": 7958180,
      "per_100k": 6.973956356855462,
      "rank_density": 12,
      "rank_count": 12,
      "quartile": 1,
      "underserved": false
    },
    {
      "code": "WI",
      "name": "Wisconsin",
      "count": 351,
      "pop": 5960975,
      "per_100k": 5.888298474662283,
      "rank_density": 20,
      "rank_count": 22,
      "quartile": 2,
      "underserved": false
    },
    {
      "code": "WV",
      "name": "West Virginia",
      "count": 81,
      "pop": 1769979,
      "per_100k": 4.576325481827751,
      "rank_density": 35,
      "rank_count": 43,
      "quartile": 3,
      "underserved": false
    },
    {
      "code": "WY",
      "name": "Wyoming",
      "count": 13,
      "pop": 587618,
      "per_100k": 2.2123216102978467,
      "rank_density": 51,
      "rank_count": 51,
      "quartile": 4,
      "underserved": true
    }
  ]
}