St. Barnabas Hospital · Referral network
HSA 33012 · 2014 · 990 physicians · 4394 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
-385,767
Median F
-109,931
Min F
-11,120,650
Max F
342
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,451
Edges
12,723
Avg clustering
0.523
Density
0.0121
Forman μ
-50.4
Forman σ
67.5
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
231,597
Avg degree
8.88
Max degree
167
Negative F edges
4,321
Positive F edges
73
Nonzero F edges
4,394
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 1396763926
Degree 167 · weight 18,222
167
#2
NPI 1477620938
Degree 90 · weight 12,100
90
#3
NPI 1639165996
Degree 77 · weight 7,434
77
#4
NPI 1801839717
Degree 74 · weight 6,761
74
#5
NPI 1013050400
Degree 77 · weight 6,642
77
#6
NPI 1063519882
Degree 104 · weight 6,346
104
#7
NPI 1356439525
Degree 74 · weight 6,053
74
#8
NPI 1396903225
Degree 72 · weight 6,050
72
Most negative curvature
#1
Forman -11,120,650
1154471993 → 1396763926
Weight 597 · Forman -11,120,650
#2
Forman -10,473,021
1396763926 → 1902804768
Weight 546 · Forman -10,473,021
#3
Forman -9,975,031
1396763926 → 1639110836
Weight 517 · Forman -9,975,031
#4
Forman -9,605,639
1134358799 → 1396763926
Weight 487 · Forman -9,605,639
#5
Forman -9,342,295
1275830861 → 1396763926
Weight 459 · Forman -9,342,295
#6
Forman -9,179,117
1255644498 → 1396763926
Weight 445 · Forman -9,179,117
#7
Forman -9,024,892
1013216704 → 1396763926
Weight 430 · Forman -9,024,892
#8
Forman -8,867,167
1205987021 → 1396763926
Weight 409 · Forman -8,867,167
Strongest referral edges
#1
Weight 963
1639165996 → 1801839717
Weight 963 · Forman -4,568,348
#2
Weight 846
1174617674 → 1568554616
Weight 846 · Forman -247,948
#3
Weight 664
1700910825 → 1841285137
Weight 664 · Forman -200,481
#4
Weight 597
1154471993 → 1396763926
Weight 597 · Forman -11,120,650
#5
Weight 595
1174682173 → 1477620938
Weight 595 · Forman -3,657,685
#6
Weight 546
1396763926 → 1902804768
Weight 546 · Forman -10,473,021
#7
Weight 528
1013050400 → 1396903225
Weight 528 · Forman -3,300,374
#8
Weight 517
1396763926 → 1639110836
Weight 517 · Forman -9,975,031