Uf Health Shands Hospital · Referral network
HSA 10040 · 2016 · 880 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
-3,022,085
Median F
-1,282,682
Min F
-63,273,276
Max F
200
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,210
Edges
34,858
Avg clustering
0.681
Density
0.0477
Forman μ
-131.1
Forman σ
179.1
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
570,208
Avg degree
18.18
Max degree
307
Negative F edges
7,982
Positive F edges
18
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 252 · weight 33,889
252
#2
NPI 1568438661
Degree 225 · weight 32,139
225
#3
NPI 1063467009
Degree 196 · weight 24,757
196
#4
NPI 1942237714
Degree 194 · weight 24,476
194
#5
NPI 1376549287
Degree 279 · weight 24,343
279
#6
NPI 1902872864
Degree 189 · weight 22,088
189
#7
NPI 1174602197
Degree 189 · weight 21,879
189
#8
NPI 1437307097
Degree 189 · weight 21,496
189
Most negative curvature
#1
Forman -63,273,276
1134235732 → 1568438661
Weight 920 · Forman -63,273,276
#2
Forman -53,005,691
1063467009 → 1134235732
Weight 850 · Forman -53,005,691
#3
Forman -52,449,361
1295741064 → 1932115805
Weight 1,338 · Forman -52,449,361
#4
Forman -51,183,930
1134235732 → 1942237714
Weight 820 · Forman -51,183,930
#5
Forman -49,328,858
1063467009 → 1568438661
Weight 936 · Forman -49,328,858
#6
Forman -47,694,696
1114933082 → 1295741064
Weight 1,179 · Forman -47,694,696
#7
Forman -46,728,787
1134235732 → 1902872864
Weight 728 · Forman -46,728,787
#8
Forman -46,236,808
1134235732 → 1174602197
Weight 723 · Forman -46,236,808
Strongest referral edges
#1
Weight 1,597
1275628562 → 1750399051
Weight 1,597 · Forman -4,607,143
#2
Weight 1,338
1295741064 → 1932115805
Weight 1,338 · Forman -52,449,361
#3
Weight 1,179
1114933082 → 1295741064
Weight 1,179 · Forman -47,694,696
#4
Weight 1,144
1568438661 → 1801862768
Weight 1,144 · Forman -36,923,583
#5
Weight 1,136
1285600148 → 1568438661
Weight 1,136 · Forman -36,117,791
#6
Weight 1,116
1386610483 → 1568438661
Weight 1,116 · Forman -36,484,435
#7
Weight 1,066
1134235732 → 1801862768
Weight 1,066 · Forman -42,362,425
#8
Weight 1,054
1134235732 → 1386610483
Weight 1,054 · Forman -42,138,926