Vibra Hospital Of Richmond · Referral network
HSA 49048 · 2014 · 1034 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
-1,314,577
Median F
-649,319
Min F
-26,578,967
Max F
457.9
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,043
Edges
58,885
Avg clustering
0.633
Density
0.0282
Forman μ
-115.9
Forman σ
143.9
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
473,907
Avg degree
15.47
Max degree
231
Negative F edges
7,958
Positive F edges
42
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 1235116377
Degree 191 · weight 22,535
191
#2
NPI 1568489425
Degree 178 · weight 21,041
178
#3
NPI 1740227537
Degree 179 · weight 18,757
179
#4
NPI 1598978850
Degree 125 · weight 18,036
125
#5
NPI 1558350579
Degree 231 · weight 16,792
231
#6
NPI 1922024769
Degree 230 · weight 15,107
230
#7
NPI 1154334241
Degree 142 · weight 13,557
142
#8
NPI 1104874635
Degree 144 · weight 13,103
144
Most negative curvature
#1
Forman -26,578,967
1174512198 → 1558350579
Weight 1,391 · Forman -26,578,967
#2
Forman -26,341,726
1235116377 → 1598978850
Weight 1,047 · Forman -26,341,726
#3
Forman -24,959,960
1568489425 → 1740227537
Weight 755 · Forman -24,959,960
#4
Forman -23,659,743
1235116377 → 1568489425
Weight 535 · Forman -23,659,743
#5
Forman -22,107,831
1154334241 → 1235116377
Weight 749 · Forman -22,107,831
#6
Forman -20,356,271
1235116377 → 1740227537
Weight 423 · Forman -20,356,271
#7
Forman -19,892,208
1235116377 → 1922024769
Weight 341 · Forman -19,892,208
#8
Forman -19,846,865
1053398198 → 1235116377
Weight 717 · Forman -19,846,865
Strongest referral edges
#1
Weight 1,391
1174512198 → 1558350579
Weight 1,391 · Forman -26,578,967
#2
Weight 1,064
1407853542 → 1730186883
Weight 1,064 · Forman -2,011,321
#3
Weight 1,047
1235116377 → 1598978850
Weight 1,047 · Forman -26,341,726
#4
Weight 830
1154334241 → 1598978850
Weight 830 · Forman -14,856,757
#5
Weight 756
1265566772 → 1699738260
Weight 756 · Forman -6,808,568
#6
Weight 755
1568489425 → 1740227537
Weight 755 · Forman -24,959,960
#7
Weight 749
1154334241 → 1235116377
Weight 749 · Forman -22,107,831
#8
Weight 740
1699738260 → 1922061126
Weight 740 · Forman -6,317,410