Uf Health Shands Hospital · Referral network
HSA 10040 · 2015 · 879 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
-2,665,813
Median F
-1,029,328
Min F
-89,643,070
Max F
204
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,178
Edges
33,924
Avg clustering
0.684
Density
0.0489
Forman μ
-122.3
Forman σ
175.2
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
531,188
Avg degree
18.20
Max degree
325
Negative F edges
7,973
Positive F edges
27
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 1134235732
Degree 246 · weight 29,722
246
#2
NPI 1932115805
Degree 215 · weight 28,154
215
#3
NPI 1902879323
Degree 240 · weight 27,758
240
#4
NPI 1295741064
Degree 325 · weight 24,035
325
#5
NPI 1942237714
Degree 193 · weight 21,268
193
#6
NPI 1437307097
Degree 208 · weight 21,243
208
#7
NPI 1376549287
Degree 254 · weight 20,969
254
#8
NPI 1568438661
Degree 193 · weight 20,054
193
Most negative curvature
#1
Forman -89,643,070
1295741064 → 1932115805
Weight 2,116 · Forman -89,643,070
#2
Forman -59,149,727
1134235732 → 1902879323
Weight 965 · Forman -59,149,727
#3
Forman -52,183,300
1114933082 → 1295741064
Weight 1,182 · Forman -52,183,300
#4
Forman -43,430,584
1134235732 → 1942237714
Weight 791 · Forman -43,430,584
#5
Forman -43,077,094
1902879323 → 1942237714
Weight 841 · Forman -43,077,094
#6
Forman -38,850,687
1063467009 → 1134235732
Weight 756 · Forman -38,850,687
#7
Forman -38,550,102
1134235732 → 1568438661
Weight 653 · Forman -38,550,102
#8
Forman -35,178,287
1568438661 → 1902879323
Weight 589 · Forman -35,178,287
Strongest referral edges
#1
Weight 2,116
1295741064 → 1932115805
Weight 2,116 · Forman -89,643,070
#2
Weight 1,631
1275628562 → 1750399051
Weight 1,631 · Forman -5,051,827
#3
Weight 1,182
1114933082 → 1295741064
Weight 1,182 · Forman -52,183,300
#4
Weight 1,090
1518946482 → 1619956570
Weight 1,090 · Forman -3,952,324
#5
Weight 1,082
1285722686 → 1932115805
Weight 1,082 · Forman -34,326,886
#6
Weight 1,073
1518946482 → 1578542437
Weight 1,073 · Forman -3,770,249
#7
Weight 965
1134235732 → 1801862768
Weight 965 · Forman -35,139,486
#8
Weight 965
1134235732 → 1902879323
Weight 965 · Forman -59,149,727