St. Barnabas Hospital · Referral network
HSA 33012 · 2017 · 1030 physicians · 3603 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
-618,020
Median F
-76,457
Min F
-26,522,172
Max F
628
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,470
Edges
10,800
Avg clustering
0.520
Density
0.0100
Forman μ
-57.2
Forman σ
90
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
196,702
Avg degree
7.00
Max degree
263
Negative F edges
3,508
Positive F edges
95
Nonzero F edges
3,603
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 1063519882
Degree 263 · weight 19,440
263
#2
NPI 1396763926
Degree 98 · weight 8,200
98
#3
NPI 1639165996
Degree 79 · weight 7,608
79
#4
NPI 1265517031
Degree 129 · weight 7,223
129
#5
NPI 1801839717
Degree 72 · weight 6,469
72
#6
NPI 1942407044
Degree 74 · weight 5,634
74
#7
NPI 1922098284
Degree 62 · weight 5,497
62
#8
NPI 1396903225
Degree 66 · weight 4,720
66
Most negative curvature
#1
Forman -26,522,172
1063519882 → 1265517031
Weight 857 · Forman -26,522,172
#2
Forman -15,902,602
1033328562 → 1063519882
Weight 391 · Forman -15,902,602
#3
Forman -15,427,413
1063519882 → 1285628073
Weight 369 · Forman -15,427,413
#4
Forman -14,984,580
1063519882 → 1417038837
Weight 376 · Forman -14,984,580
#5
Forman -13,673,530
1063519882 → 1205072881
Weight 310 · Forman -13,673,530
#6
Forman -12,834,566
1063519882 → 1336239169
Weight 280 · Forman -12,834,566
#7
Forman -12,653,244
1063519882 → 1790867950
Weight 264 · Forman -12,653,244
#8
Forman -11,714,880
1063519882 → 1255413407
Weight 230 · Forman -11,714,880
Strongest referral edges
#1
Weight 889
1639165996 → 1801839717
Weight 889 · Forman -4,348,927
#2
Weight 857
1063519882 → 1265517031
Weight 857 · Forman -26,522,172
#3
Weight 771
1134209463 → 1831274315
Weight 771 · Forman -63,271
#4
Weight 659
1194792887 → 1689933095
Weight 659 · Forman -6,175
#5
Weight 590
1336436302 → 1548328230
Weight 590 · Forman -47,632
#6
Weight 535
1689839979 → 1962749051
Weight 535 · Forman -75,507
#7
Weight 509
1922236553 → 1962749051
Weight 509 · Forman -30,125
#8
Weight 503
1134209463 → 1548328230
Weight 503 · Forman -48,761