West Chester Hospital · Referral network
HSA 36023 · 2016 · 1640 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
-601,708
Median F
-182,301
Min F
-18,513,773
Max F
514
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,616
Edges
53,382
Avg clustering
0.604
Density
0.0156
Forman μ
-155.1
Forman σ
175.1
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
444,384
Avg degree
9.76
Max degree
206
Negative F edges
7,918
Positive F edges
82
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 1881671766
Degree 205 · weight 20,346
205
#2
NPI 1922098342
Degree 206 · weight 17,188
206
#3
NPI 1376542936
Degree 139 · weight 13,490
139
#4
NPI 1174513733
Degree 137 · weight 12,861
137
#5
NPI 1851353064
Degree 145 · weight 10,598
145
#6
NPI 1700877867
Degree 110 · weight 10,342
110
#7
NPI 1841594496
Degree 128 · weight 8,319
128
#8
NPI 1306836861
Degree 86 · weight 7,333
86
Most negative curvature
#1
Forman -18,513,773
1700877867 → 1922098342
Weight 762 · Forman -18,513,773
#2
Forman -18,194,861
1174513733 → 1881671766
Weight 506 · Forman -18,194,861
#3
Forman -17,170,569
1306836861 → 1922098342
Weight 806 · Forman -17,170,569
#4
Forman -16,687,220
1851353064 → 1881671766
Weight 429 · Forman -16,687,220
#5
Forman -15,778,966
1578530051 → 1881671766
Weight 694 · Forman -15,778,966
#6
Forman -14,517,071
1700876190 → 1922098342
Weight 687 · Forman -14,517,071
#7
Forman -14,386,759
1881671766 → 1891750394
Weight 603 · Forman -14,386,759
#8
Forman -12,983,261
1578527495 → 1881671766
Weight 484 · Forman -12,983,261
Strongest referral edges
#1
Weight 974
1205838562 → 1457353708
Weight 974 · Forman -99,955
#2
Weight 885
1043409873 → 1205838562
Weight 885 · Forman -94,095
#3
Weight 852
1376542936 → 1750586483
Weight 852 · Forman -8,308,318
#4
Weight 806
1306836861 → 1922098342
Weight 806 · Forman -17,170,569
#5
Weight 804
1376542936 → 1487653184
Weight 804 · Forman -7,922,619
#6
Weight 798
1225466238 → 1952384505
Weight 798 · Forman -208,428
#7
Weight 762
1700877867 → 1922098342
Weight 762 · Forman -18,513,773
#8
Weight 719
1275744682 → 1376542936
Weight 719 · Forman -7,451,953