St. Barnabas Hospital · Referral network
HSA 33012 · 2015 · 946 physicians · 3587 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
-317,448
Median F
-73,153
Min F
-10,242,698
Max F
284
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,438
Edges
11,026
Avg clustering
0.501
Density
0.0107
Forman μ
-45.7
Forman σ
64
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
183,496
Avg degree
7.58
Max degree
168
Negative F edges
3,510
Positive F edges
77
Nonzero F edges
3,587
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 168 · weight 17,532
168
#2
NPI 1477620938
Degree 82 · weight 8,771
82
#3
NPI 1639165996
Degree 63 · weight 5,803
63
#4
NPI 1801839717
Degree 61 · weight 5,295
61
#5
NPI 1013050400
Degree 64 · weight 4,523
64
#6
NPI 1942407044
Degree 60 · weight 4,373
60
#7
NPI 1356439525
Degree 60 · weight 4,353
60
#8
NPI 1912162793
Degree 59 · weight 4,107
59
Most negative curvature
#1
Forman -10,242,698
1154471993 → 1396763926
Weight 559 · Forman -10,242,698
#2
Forman -9,937,197
1396763926 → 1700936341
Weight 525 · Forman -9,937,197
#3
Forman -9,624,582
1174882757 → 1396763926
Weight 518 · Forman -9,624,582
#4
Forman -9,572,421
1053407031 → 1396763926
Weight 484 · Forman -9,572,421
#5
Forman -9,196,365
1396763926 → 1639110836
Weight 477 · Forman -9,196,365
#6
Forman -9,117,571
1275830861 → 1396763926
Weight 474 · Forman -9,117,571
#7
Forman -8,586,181
1205987021 → 1396763926
Weight 413 · Forman -8,586,181
#8
Forman -8,507,123
1396763926 → 1487735809
Weight 408 · Forman -8,507,123
Strongest referral edges
#1
Weight 881
1639165996 → 1801839717
Weight 881 · Forman -2,867,402
#2
Weight 769
1174617674 → 1568554616
Weight 769 · Forman -338,522
#3
Weight 713
1689839979 → 1962749051
Weight 713 · Forman -256,244
#4
Weight 559
1154471993 → 1396763926
Weight 559 · Forman -10,242,698
#5
Weight 525
1396763926 → 1700936341
Weight 525 · Forman -9,937,197
#6
Weight 518
1174882757 → 1396763926
Weight 518 · Forman -9,624,582
#7
Weight 492
1356337695 → 1639165996
Weight 492 · Forman -1,155,811
#8
Weight 484
1053407031 → 1396763926
Weight 484 · Forman -9,572,421