Vibra Hospital Of Richmond · Referral network
HSA 49048 · 2017 · 1438 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
-1,899,216
Median F
-549,550
Min F
-37,858,055
Max F
126
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,366
Edges
73,821
Avg clustering
0.653
Density
0.0264
Forman μ
-161.9
Forman σ
190.2
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
494,819
Avg degree
11.13
Max degree
285
Negative F edges
7,976
Positive F edges
24
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 235 · weight 29,031
235
#2
NPI 1104847623
Degree 285 · weight 27,647
285
#3
NPI 1508835943
Degree 275 · weight 22,225
275
#4
NPI 1740227537
Degree 215 · weight 22,042
215
#5
NPI 1174512198
Degree 274 · weight 20,423
274
#6
NPI 1740497007
Degree 223 · weight 16,295
223
#7
NPI 1710907878
Degree 159 · weight 13,218
159
#8
NPI 1528158177
Degree 103 · weight 11,921
103
Most negative curvature
#1
Forman -37,858,055
1174512198 → 1558350579
Weight 1,828 · Forman -37,858,055
#2
Forman -35,234,592
1104847623 → 1770503765
Weight 918 · Forman -35,234,592
#3
Forman -34,862,257
1508835943 → 1740497007
Weight 556 · Forman -34,862,257
#4
Forman -34,664,422
1235116377 → 1740227537
Weight 513 · Forman -34,664,422
#5
Forman -33,858,344
1104847623 → 1174512198
Weight 298 · Forman -33,858,344
#6
Forman -33,316,843
1104847623 → 1376578765
Weight 833 · Forman -33,316,843
#7
Forman -32,777,393
1104847623 → 1750302337
Weight 790 · Forman -32,777,393
#8
Forman -30,910,433
1235116377 → 1598978850
Weight 1,168 · Forman -30,910,433
Strongest referral edges
#1
Weight 1,828
1174512198 → 1558350579
Weight 1,828 · Forman -37,858,055
#2
Weight 1,586
1508966706 → 1528158177
Weight 1,586 · Forman -11,932,513
#3
Weight 1,312
1407853542 → 1730186883
Weight 1,312 · Forman -1,895,303
#4
Weight 1,168
1235116377 → 1598978850
Weight 1,168 · Forman -30,910,433
#5
Weight 1,052
1467552679 → 1508966706
Weight 1,052 · Forman -6,233,002
#6
Weight 1,032
1154334241 → 1235116377
Weight 1,032 · Forman -28,847,668
#7
Weight 958
1053398198 → 1235116377
Weight 958 · Forman -27,663,103
#8
Weight 918
1104847623 → 1770503765
Weight 918 · Forman -35,234,592