Thomas Jefferson University Hosp · Referral network
HSA 39095 · 2015 · 2604 physicians · 8000 edges
Running from SQLite — no Neo4j required. Regional and HSA dashboards, this force graph, curvature histogram, and hub rankings all work out of the box. Advanced users can optionally load the graph into a self-hosted Neo4j instance (docker compose up -d, then npm run etl-to-neo4j) for the Cypher playground and Neo4j Browser.
Force-directed graph · edges coloured by Forman–Ricci curvature
Loading graph engine…
Curvature distribution
Mean F
-1,244,577
Median F
-175,690
Min F
-64,659,641
Max F
3,309
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
5,433
Edges
100,225
Avg clustering
0.609
Density
0.0068
Forman μ
-114.4
Forman σ
163.7
Rendered graph structure
Live computation on up to 8,000 edges (SQLite row order, node-strength weights). Values will differ from precomputed stats above for large HSAs.
Total weight
487,749
Avg degree
6.14
Max degree
345
Negative F edges
7,936
Positive F edges
64
Nonzero F edges
8,000
Reading the graph
Teal edges have positive Forman curvature — efficient information flow.
Red edges have negative curvature — bottlenecks in the referral graph.
Edge width: log(patient count). Node size: degree-weighted strength.
Hub physicians
#1
NPI 1154319044
Degree 345 · weight 35,736
345
#2
NPI 1932134533
Degree 208 · weight 28,685
208
#3
NPI 1922008861
Degree 159 · weight 13,750
159
#4
NPI 1497729602
Degree 161 · weight 11,517
161
#5
NPI 1982695227
Degree 114 · weight 10,794
114
#6
NPI 1104085745
Degree 121 · weight 10,367
121
#7
NPI 1477542314
Degree 162 · weight 9,758
162
#8
NPI 1215268818
Degree 119 · weight 9,591
119
Most negative curvature
#1
Forman -64,659,641
1881600955 → 1932134533
Weight 4,862 · Forman -64,659,641
#2
Forman -63,944,117
1205851888 → 1932134533
Weight 4,756 · Forman -63,944,117
#3
Forman -52,456,654
1154319044 → 1811953714
Weight 980 · Forman -52,456,654
#4
Forman -50,361,572
1154319044 → 1710961941
Weight 904 · Forman -50,361,572
#5
Forman -44,282,760
1063400950 → 1154319044
Weight 702 · Forman -44,282,760
#6
Forman -42,396,866
1154319044 → 1477542314
Weight 484 · Forman -42,396,866
#7
Forman -41,103,605
1154319044 → 1801884788
Weight 606 · Forman -41,103,605
#8
Forman -40,663,566
1154319044 → 1306863865
Weight 592 · Forman -40,663,566
Strongest referral edges
#1
Weight 4,862
1881600955 → 1932134533
Weight 4,862 · Forman -64,659,641
#2
Weight 4,756
1205851888 → 1932134533
Weight 4,756 · Forman -63,944,117
#3
Weight 1,002
1578646899 → 1932134533
Weight 1,002 · Forman -29,303,112
#4
Weight 980
1154319044 → 1811953714
Weight 980 · Forman -52,456,654
#5
Weight 971
1851451835 → 1932134533
Weight 971 · Forman -28,845,380
#6
Weight 915
1689874935 → 1932134533
Weight 915 · Forman -27,999,584
#7
Weight 904
1154319044 → 1710961941
Weight 904 · Forman -50,361,572
#8
Weight 829
1225060767 → 1316979313
Weight 829 · Forman -1,091,281