Whittier Rehabilitation Hospital · Referral network
HSA 22070 · 2015 · 1023 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
-2,457,673
Median F
-574,532
Min F
-75,941,838
Max F
124
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,521
Edges
31,299
Avg clustering
0.659
Density
0.0271
Forman μ
-177.9
Forman σ
193.4
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
446,546
Avg degree
15.64
Max degree
333
Negative F edges
7,957
Positive F edges
43
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 1487637062
Degree 333 · weight 29,758
333
#2
NPI 1710911565
Degree 320 · weight 27,331
320
#3
NPI 1619134541
Degree 305 · weight 25,373
305
#4
NPI 1609892199
Degree 293 · weight 24,547
293
#5
NPI 1528028057
Degree 232 · weight 18,473
232
#6
NPI 1639152564
Degree 194 · weight 16,623
194
#7
NPI 1598747883
Degree 146 · weight 12,231
146
#8
NPI 1275594426
Degree 219 · weight 11,378
219
Most negative curvature
#1
Forman -75,941,838
1487637062 → 1710911565
Weight 725 · Forman -75,941,838
#2
Forman -69,984,183
1487637062 → 1609892199
Weight 710 · Forman -69,984,183
#3
Forman -69,785,434
1487637062 → 1619134541
Weight 677 · Forman -69,785,434
#4
Forman -65,246,465
1619134541 → 1710911565
Weight 682 · Forman -65,246,465
#5
Forman -64,598,912
1487637062 → 1528028057
Weight 899 · Forman -64,598,912
#6
Forman -62,178,508
1609892199 → 1710911565
Weight 648 · Forman -62,178,508
#7
Forman -58,486,243
1487637062 → 1639152564
Weight 876 · Forman -58,486,243
#8
Forman -57,421,778
1528028057 → 1710911565
Weight 849 · Forman -57,421,778
Strongest referral edges
#1
Weight 1,077
1205854718 → 1962471524
Weight 1,077 · Forman -3,356,545
#2
Weight 981
1104895622 → 1205854718
Weight 981 · Forman -3,110,158
#3
Weight 938
1205854718 → 1881653152
Weight 938 · Forman -2,950,298
#4
Weight 899
1487637062 → 1528028057
Weight 899 · Forman -64,598,912
#5
Weight 876
1487637062 → 1639152564
Weight 876 · Forman -58,486,243
#6
Weight 857
1184607855 → 1578716338
Weight 857 · Forman -760,773
#7
Weight 849
1528028057 → 1710911565
Weight 849 · Forman -57,421,778
#8
Weight 834
1639152564 → 1710911565
Weight 834 · Forman -51,759,933