St. Barnabas Hospital · Referral network
HSA 33012 · 2016 · 956 physicians · 3372 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
-462,999
Median F
-72,320
Min F
-16,646,102
Max F
416
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,431
Edges
10,351
Avg clustering
0.516
Density
0.0101
Forman μ
-56
Forman σ
81.1
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
184,149
Avg degree
7.05
Max degree
224
Negative F edges
3,293
Positive F edges
79
Nonzero F edges
3,372
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 224 · weight 14,606
224
#2
NPI 1396763926
Degree 128 · weight 12,134
128
#3
NPI 1639165996
Degree 69 · weight 6,750
69
#4
NPI 1265517031
Degree 125 · weight 6,348
125
#5
NPI 1922098284
Degree 66 · weight 6,260
66
#6
NPI 1801839717
Degree 61 · weight 5,756
61
#7
NPI 1942407044
Degree 63 · weight 4,623
63
#8
NPI 1013050400
Degree 61 · weight 4,490
61
Most negative curvature
#1
Forman -16,646,102
1063519882 → 1265517031
Weight 685 · Forman -16,646,102
#2
Forman -12,350,212
1063519882 → 1396763926
Weight 299 · Forman -12,350,212
#3
Forman -9,913,619
1063519882 → 1336239169
Weight 333 · Forman -9,913,619
#4
Forman -9,762,680
1033328562 → 1063519882
Weight 319 · Forman -9,762,680
#5
Forman -9,759,169
1063519882 → 1285628073
Weight 317 · Forman -9,759,169
#6
Forman -7,948,934
1063519882 → 1417038837
Weight 239 · Forman -7,948,934
#7
Forman -7,242,551
1063519882 → 1679736953
Weight 192 · Forman -7,242,551
#8
Forman -7,115,545
1063519882 → 1255413407
Weight 185 · Forman -7,115,545
Strongest referral edges
#1
Weight 873
1639165996 → 1801839717
Weight 873 · Forman -3,366,688
#2
Weight 706
1134209463 → 1831274315
Weight 706 · Forman -11,593
#3
Weight 685
1063519882 → 1265517031
Weight 685 · Forman -16,646,102
#4
Weight 672
1174617674 → 1568554616
Weight 672 · Forman -459,582
#5
Weight 570
1336436302 → 1548328230
Weight 570 · Forman -9,322
#6
Weight 481
1194792887 → 1689933095
Weight 481 · Forman -3,722
#7
Weight 477
1154471993 → 1396763926
Weight 477 · Forman -5,005,932
#8
Weight 460
1134209463 → 1548328230
Weight 460 · Forman -7,672