St. Vincent Seton Specialty Hosp. · Referral network
HSA 15039 · 2014 · 1578 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
-3,498,559
Median F
-456,898
Min F
-169,212,065
Max F
145
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,929
Edges
65,922
Avg clustering
0.637
Density
0.0154
Forman μ
-139.5
Forman σ
222.3
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
491,488
Avg degree
10.14
Max degree
522
Negative F edges
7,965
Positive F edges
35
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 522 · weight 54,767
522
#2
NPI 1558339952
Degree 256 · weight 21,613
256
#3
NPI 1093771362
Degree 230 · weight 19,042
230
#4
NPI 1770668535
Degree 189 · weight 19,032
189
#5
NPI 1114983095
Degree 83 · weight 16,469
83
#6
NPI 1558380931
Degree 200 · weight 16,240
200
#7
NPI 1992704209
Degree 190 · weight 14,908
190
#8
NPI 1174585483
Degree 222 · weight 14,453
222
Most negative curvature
#1
Forman -169,212,065
1356312896 → 1447215777
Weight 1,657 · Forman -169,212,065
#2
Forman -128,383,706
1154349454 → 1447215777
Weight 989 · Forman -128,383,706
#3
Forman -121,291,152
1134389968 → 1447215777
Weight 874 · Forman -121,291,152
#4
Forman -120,504,873
1447215777 → 1568426443
Weight 878 · Forman -120,504,873
#5
Forman -119,717,580
1326002296 → 1447215777
Weight 862 · Forman -119,717,580
#6
Forman -110,897,754
1447215777 → 1710092663
Weight 741 · Forman -110,897,754
#7
Forman -110,245,799
1306801923 → 1447215777
Weight 731 · Forman -110,245,799
#8
Forman -110,171,275
1447215777 → 1831153717
Weight 734 · Forman -110,171,275
Strongest referral edges
#1
Weight 1,657
1356312896 → 1447215777
Weight 1,657 · Forman -169,212,065
#2
Weight 1,142
1093771362 → 1114983095
Weight 1,142 · Forman -26,987,637
#3
Weight 1,033
1114983095 → 1558339952
Weight 1,033 · Forman -30,859,812
#4
Weight 989
1154349454 → 1447215777
Weight 989 · Forman -128,383,706
#5
Weight 884
1114983095 → 1962475574
Weight 884 · Forman -4,804,495
#6
Weight 878
1447215777 → 1568426443
Weight 878 · Forman -120,504,873
#7
Weight 874
1356312896 → 1558380931
Weight 874 · Forman -16,958,449
#8
Weight 874
1134389968 → 1447215777
Weight 874 · Forman -121,291,152