fresh block

<!DOCTYPE html>
<head>
<meta charset="utf-8">
<style>
body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
#title {position:absolute;top:12px;left:0px;width:500px;text-align:center;}
  svg { width:100%; height: 100% }
.axis path,
.axis line {
  fill: none;
  stroke: #000;
  shape-rendering: crispEdges;
}
.div_style1 {
      border: 2px solid grey;
      width: 950px;
      height: 550px;
      
}
.div_style2 {
      border: 2px solid grey;
      width: 950px;
      height: 500px;
      
}
.dot {
  stroke: #000;
}

</style>
  </head>

<body>

var margin = {top: 20, right: 20, bottom: 30, left: 40},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

var x = d3.scale.linear()
    .range([0, width]);

var y = d3.scale.linear()
    .range([height, 0]);

var color = d3.scale.category10();

var xAxis = d3.svg.axis()
    .scale(x)
    .orient("bottom");

var yAxis = d3.svg.axis()
    .scale(y)
    .orient("left");

var svg = d3.select("body").append("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

d3.tsv("https://gist.githubusercontent.com/srinivashavanur/f7fda83fa4cd85b6d4b3/raw/a0a0c08c80f6736202eb5e4e4a55df6623b05c93/medicaredb.tsv", function(error, data) {
  if (error) throw error;

data.forEach(function(d) {
    d.average_submitted_chrg_amt = +d.average_submitted_chrg_amt;
    d.average_Medicare_payment_amt = +d.average_Medicare_payment_amt;
  });

x.domain(d3.extent(data, function(d) { return d.average_Medicare_payment_amt; })).nice();
  y.domain(d3.extent(data, function(d) { return d.average_submitted_chrg_amt; })).nice();

svg.append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis)
    .append("text")
      .attr("class", "label")
      .attr("x", width)
      .attr("y", -6)
      .style("text-anchor", "end")
      .text("Average Medicare Payment Amt");

svg.append("g")
      .attr("class", "y axis")
      .call(yAxis)
    .append("text")
      .attr("class", "label")
      .attr("transform", "rotate(-90)")
      .attr("y", 6)
      .attr("dy", ".71em")
      .style("text-anchor", "end")
      .text("Average Submitted Charge Amt")

svg.selectAll(".dot")
      .data(data)
    .enter().append("circle")
      .attr("class", "dot")
  		//.attr("r",5.5)
  		.attr("r", function (d) { return d.average_submitted_chrg_amt*0.01; })
      .attr("cx", function(d) { return x(d.average_Medicare_payment_amt); })
      .attr("cy", function(d) { return y(d.average_submitted_chrg_amt); })
      .style("fill", function(d) { return color(d.nppes_provider_state); });

var legend = svg.selectAll(".legend")
      .data(color.domain())
    .enter().append("g")
      .attr("class", "legend")
      .attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; });

legend.append("rect")
      .attr("x", width - 18)
      .attr("width", 18)
      .attr("height", 18)
      .style("fill", color);

legend.append("text")
      .attr("x", width - 24)
      .attr("y", 9)
      .attr("dy", ".35em")
      .style("text-anchor", "end")
      .text(function(d) { return d; });

});

</script>

Updated missing url //d3js.org/d3.v3.min.js to https://d3js.org/d3.v3.min.js

https://d3js.org/d3.v3.min.js