St. Vincent Seton Specialty Hosp. · Referral network
HSA 15039 · 2015 · 1661 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
-3,151,214
Median F
-404,637
Min F
-157,781,101
Max F
221.2
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,979
Edges
64,247
Avg clustering
0.624
Density
0.0145
Forman μ
-136.6
Forman σ
228.9
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
473,979
Avg degree
9.63
Max degree
498
Negative F edges
7,955
Positive F edges
45
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 1447215777
Degree 498 · weight 52,442
498
#2
NPI 1174585483
Degree 255 · weight 20,703
255
#3
NPI 1558339952
Degree 249 · weight 19,838
249
#4
NPI 1770668535
Degree 187 · weight 18,140
187
#5
NPI 1114983095
Degree 92 · weight 17,620
92
#6
NPI 1093779910
Degree 187 · weight 16,993
187
#7
NPI 1093771362
Degree 232 · weight 16,862
232
#8
NPI 1992704209
Degree 170 · weight 11,701
170
Most negative curvature
#1
Forman -157,781,101
1356312896 → 1447215777
Weight 1,750 · Forman -157,781,101
#2
Forman -147,183,894
1447215777 → 1568426443
Weight 1,564 · Forman -147,183,894
#3
Forman -120,647,424
1447215777 → 1831153717
Weight 1,064 · Forman -120,647,424
#4
Forman -120,307,758
1134187701 → 1447215777
Weight 1,058 · Forman -120,307,758
#5
Forman -114,764,445
1326002296 → 1447215777
Weight 967 · Forman -114,764,445
#6
Forman -102,385,706
1134389968 → 1447215777
Weight 768 · Forman -102,385,706
#7
Forman -96,951,743
1447215777 → 1710092663
Weight 692 · Forman -96,951,743
#8
Forman -93,997,461
1306801923 → 1447215777
Weight 650 · Forman -93,997,461
Strongest referral edges
#1
Weight 1,750
1356312896 → 1447215777
Weight 1,750 · Forman -157,781,101
#2
Weight 1,564
1447215777 → 1568426443
Weight 1,564 · Forman -147,183,894
#3
Weight 1,064
1447215777 → 1831153717
Weight 1,064 · Forman -120,647,424
#4
Weight 1,058
1134187701 → 1447215777
Weight 1,058 · Forman -120,307,758
#5
Weight 1,051
1114983095 → 1962475574
Weight 1,051 · Forman -6,430,666
#6
Weight 1,033
1114983095 → 1639186703
Weight 1,033 · Forman -6,361,740
#7
Weight 1,014
1114983095 → 1558339952
Weight 1,014 · Forman -28,999,648
#8
Weight 967
1326002296 → 1447215777
Weight 967 · Forman -114,764,445