St. Vincent Seton Specialty Hosp. · Referral network
HSA 15039 · 2017 · 1725 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
-2,011,038
Median F
-270,253
Min F
-90,971,849
Max F
770
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
3,236
Edges
66,796
Avg clustering
0.631
Density
0.0128
Forman μ
-147.5
Forman σ
214.3
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
455,831
Avg degree
9.28
Max degree
411
Negative F edges
7,947
Positive F edges
53
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 411 · weight 39,352
411
#2
NPI 1558339952
Degree 257 · weight 19,788
257
#3
NPI 1093779910
Degree 219 · weight 19,337
219
#4
NPI 1174585483
Degree 229 · weight 19,226
229
#5
NPI 1114983095
Degree 107 · weight 18,407
107
#6
NPI 1770668535
Degree 197 · weight 16,119
197
#7
NPI 1992704209
Degree 152 · weight 11,125
152
#8
NPI 1093771362
Degree 160 · weight 10,069
160
Most negative curvature
#1
Forman -90,971,849
1356312896 → 1447215777
Weight 1,380 · Forman -90,971,849
#2
Forman -87,172,567
1447215777 → 1568426443
Weight 1,308 · Forman -87,172,567
#3
Forman -78,196,402
1134187701 → 1447215777
Weight 1,056 · Forman -78,196,402
#4
Forman -67,418,667
1447215777 → 1831153717
Weight 800 · Forman -67,418,667
#5
Forman -65,359,870
1134389968 → 1447215777
Weight 730 · Forman -65,359,870
#6
Forman -61,267,603
1326002296 → 1447215777
Weight 658 · Forman -61,267,603
#7
Forman -60,113,167
1205061918 → 1447215777
Weight 635 · Forman -60,113,167
#8
Forman -55,946,079
1306801923 → 1447215777
Weight 550 · Forman -55,946,079
Strongest referral edges
#1
Weight 1,380
1356312896 → 1447215777
Weight 1,380 · Forman -90,971,849
#2
Weight 1,308
1447215777 → 1568426443
Weight 1,308 · Forman -87,172,567
#3
Weight 1,056
1134187701 → 1447215777
Weight 1,056 · Forman -78,196,402
#4
Weight 992
1114983095 → 1639186703
Weight 992 · Forman -7,708,096
#5
Weight 929
1114983095 → 1962475574
Weight 929 · Forman -7,512,575
#6
Weight 871
1114983095 → 1558339952
Weight 871 · Forman -30,141,478
#7
Weight 853
1114983095 → 1336115633
Weight 853 · Forman -7,172,901
#8
Weight 800
1447215777 → 1831153717
Weight 800 · Forman -67,418,667