Westchester General Hospital · Referral network
HSA 10074 · 2016 · 1466 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
-640,551
Median F
-210,655
Min F
-19,761,171
Max F
294
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,540
Edges
44,600
Avg clustering
0.549
Density
0.0138
Forman μ
-75.4
Forman σ
114.1
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
441,423
Avg degree
10.91
Max degree
253
Negative F edges
7,948
Positive F edges
52
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 1962436360
Degree 253 · weight 18,533
253
#2
NPI 1790738862
Degree 193 · weight 14,518
193
#3
NPI 1346454915
Degree 163 · weight 14,486
163
#4
NPI 1477519122
Degree 83 · weight 10,333
83
#5
NPI 1972904324
Degree 99 · weight 8,791
99
#6
NPI 1669522173
Degree 101 · weight 7,907
101
#7
NPI 1801117726
Degree 127 · weight 7,704
127
#8
NPI 1043236862
Degree 153 · weight 7,641
153
Most negative curvature
#1
Forman -19,761,171
1124245147 → 1962436360
Weight 734 · Forman -19,761,171
#2
Forman -16,313,677
1417120247 → 1962436360
Weight 516 · Forman -16,313,677
#3
Forman -15,937,608
1003017112 → 1962436360
Weight 495 · Forman -15,937,608
#4
Forman -15,503,930
1396956728 → 1962436360
Weight 472 · Forman -15,503,930
#5
Forman -13,977,324
1073549762 → 1962436360
Weight 380 · Forman -13,977,324
#6
Forman -13,601,271
1295889848 → 1962436360
Weight 355 · Forman -13,601,271
#7
Forman -13,171,100
1285623306 → 1790738862
Weight 765 · Forman -13,171,100
#8
Forman -13,124,893
1194754689 → 1962436360
Weight 331 · Forman -13,124,893
Strongest referral edges
#1
Weight 1,067
1639570088 → 1972904324
Weight 1,067 · Forman -4,684,542
#2
Weight 765
1285623306 → 1790738862
Weight 765 · Forman -13,171,100
#3
Weight 756
1568481620 → 1639570088
Weight 756 · Forman -2,605,905
#4
Weight 734
1124245147 → 1962436360
Weight 734 · Forman -19,761,171
#5
Weight 698
1568481620 → 1972904324
Weight 698 · Forman -5,474,852
#6
Weight 643
1376971556 → 1851638332
Weight 643 · Forman -167,663
#7
Weight 638
1396774394 → 1427023134
Weight 638 · Forman -190,072
#8
Weight 615
1245292374 → 1699863183
Weight 615 · Forman -813,525