St. Vincent Seton Specialty Hosp. · Referral network
HSA 15039 · 2016 · 1730 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
-3,068,736
Median F
-351,889
Min F
-135,629,995
Max F
356.9
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
3,104
Edges
64,024
Avg clustering
0.626
Density
0.0133
Forman μ
-133.2
Forman σ
203.2
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
475,134
Avg degree
9.25
Max degree
519
Negative F edges
7,950
Positive F edges
50
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 519 · weight 49,041
519
#2
NPI 1174585483
Degree 240 · weight 22,454
240
#3
NPI 1558339952
Degree 253 · weight 21,396
253
#4
NPI 1114983095
Degree 94 · weight 17,721
94
#5
NPI 1093771362
Degree 230 · weight 17,538
230
#6
NPI 1093779910
Degree 183 · weight 15,916
183
#7
NPI 1770668535
Degree 169 · weight 15,398
169
#8
NPI 1992704209
Degree 154 · weight 11,318
154
Most negative curvature
#1
Forman -135,629,995
1356312896 → 1447215777
Weight 1,328 · Forman -135,629,995
#2
Forman -132,886,539
1447215777 → 1568426443
Weight 1,291 · Forman -132,886,539
#3
Forman -111,624,800
1134389968 → 1447215777
Weight 917 · Forman -111,624,800
#4
Forman -110,679,090
1134187701 → 1447215777
Weight 906 · Forman -110,679,090
#5
Forman -109,629,478
1326002296 → 1447215777
Weight 886 · Forman -109,629,478
#6
Forman -109,581,984
1447215777 → 1831153717
Weight 890 · Forman -109,581,984
#7
Forman -96,846,891
1306801923 → 1447215777
Weight 699 · Forman -96,846,891
#8
Forman -92,691,819
1205061918 → 1447215777
Weight 642 · Forman -92,691,819
Strongest referral edges
#1
Weight 1,328
1356312896 → 1447215777
Weight 1,328 · Forman -135,629,995
#2
Weight 1,291
1447215777 → 1568426443
Weight 1,291 · Forman -132,886,539
#3
Weight 1,091
1114983095 → 1962475574
Weight 1,091 · Forman -6,752,161
#4
Weight 979
1114983095 → 1639186703
Weight 979 · Forman -6,328,423
#5
Weight 976
1093771362 → 1114983095
Weight 976 · Forman -25,225,645
#6
Weight 932
1114983095 → 1558339952
Weight 932 · Forman -30,361,836
#7
Weight 917
1134389968 → 1447215777
Weight 917 · Forman -111,624,800
#8
Weight 906
1134187701 → 1447215777
Weight 906 · Forman -110,679,090