West Chester Hospital · Referral network
HSA 36023 · 2014 · 1476 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
-777,583
Median F
-222,718
Min F
-32,392,330
Max F
610.4
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,509
Edges
54,748
Avg clustering
0.606
Density
0.0174
Forman μ
-139.8
Forman σ
147.1
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
464,682
Avg degree
10.84
Max degree
250
Negative F edges
7,941
Positive F edges
59
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 1922098342
Degree 225 · weight 21,011
225
#2
NPI 1639138944
Degree 250 · weight 20,952
250
#3
NPI 1821287509
Degree 119 · weight 13,572
119
#4
NPI 1962509315
Degree 175 · weight 11,554
175
#5
NPI 1316914237
Degree 170 · weight 11,024
170
#6
NPI 1841594496
Degree 152 · weight 9,241
152
#7
NPI 1033118732
Degree 94 · weight 9,225
94
#8
NPI 1033323381
Degree 110 · weight 9,182
110
Most negative curvature
#1
Forman -32,392,330
1639138944 → 1922098342
Weight 518 · Forman -32,392,330
#2
Forman -20,920,014
1306836861 → 1922098342
Weight 871 · Forman -20,920,014
#3
Forman -20,583,611
1700876190 → 1922098342
Weight 861 · Forman -20,583,611
#4
Forman -20,101,744
1306836861 → 1639138944
Weight 596 · Forman -20,101,744
#5
Forman -19,934,182
1639138944 → 1700877867
Weight 578 · Forman -19,934,182
#6
Forman -19,516,176
1639138944 → 1700876190
Weight 572 · Forman -19,516,176
#7
Forman -18,573,941
1700877867 → 1922098342
Weight 676 · Forman -18,573,941
#8
Forman -18,354,077
1518957919 → 1639138944
Weight 512 · Forman -18,354,077
Strongest referral edges
#1
Weight 958
1841498722 → 1851409122
Weight 958 · Forman -110,033
#2
Weight 927
1043409873 → 1205838562
Weight 927 · Forman -95,060
#3
Weight 905
1205838562 → 1457353708
Weight 905 · Forman -95,637
#4
Weight 871
1306836861 → 1922098342
Weight 871 · Forman -20,920,014
#5
Weight 861
1700876190 → 1922098342
Weight 861 · Forman -20,583,611
#6
Weight 795
1154320828 → 1821287509
Weight 795 · Forman -6,185,210
#7
Weight 766
1376542936 → 1750586483
Weight 766 · Forman -3,540,961
#8
Weight 686
1033118732 → 1083613780
Weight 686 · Forman -6,696,364