Vibra Hospital Of Richmond · Referral network
HSA 49048 · 2016 · 1345 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
-1,730,818
Median F
-520,559
Min F
-52,866,388
Max F
844
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,205
Edges
68,185
Avg clustering
0.645
Density
0.0281
Forman μ
-146.5
Forman σ
168.5
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
491,251
Avg degree
11.90
Max degree
337
Negative F edges
7,979
Positive F edges
21
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 1104847623
Degree 337 · weight 34,906
337
#2
NPI 1235116377
Degree 199 · weight 23,048
199
#3
NPI 1740227537
Degree 186 · weight 19,101
186
#4
NPI 1174512198
Degree 235 · weight 16,597
235
#5
NPI 1831118066
Degree 157 · weight 14,849
157
#6
NPI 1508835943
Degree 186 · weight 13,745
186
#7
NPI 1164452363
Degree 195 · weight 13,604
195
#8
NPI 1710907878
Degree 158 · weight 13,591
158
Most negative curvature
#1
Forman -52,866,388
1104847623 → 1376578765
Weight 950 · Forman -52,866,388
#2
Forman -52,433,003
1104847623 → 1770503765
Weight 943 · Forman -52,433,003
#3
Forman -51,286,610
1104847623 → 1750302337
Weight 887 · Forman -51,286,610
#4
Forman -47,612,338
1104847623 → 1639111222
Weight 776 · Forman -47,612,338
#5
Forman -41,868,295
1104847623 → 1164452363
Weight 405 · Forman -41,868,295
#6
Forman -41,265,964
1104847623 → 1922125053
Weight 597 · Forman -41,265,964
#7
Forman -40,996,651
1104847623 → 1306863063
Weight 566 · Forman -40,996,651
#8
Forman -40,554,241
1104847623 → 1558350579
Weight 556 · Forman -40,554,241
Strongest referral edges
#1
Weight 1,499
1174512198 → 1558350579
Weight 1,499 · Forman -24,428,108
#2
Weight 1,409
1407853542 → 1730186883
Weight 1,409 · Forman -1,954,192
#3
Weight 1,242
1508966706 → 1528158177
Weight 1,242 · Forman -9,326,156
#4
Weight 1,151
1467552679 → 1508966706
Weight 1,151 · Forman -5,351,037
#5
Weight 1,010
1235116377 → 1598978850
Weight 1,010 · Forman -19,640,731
#6
Weight 950
1104847623 → 1376578765
Weight 950 · Forman -52,866,388
#7
Weight 943
1104847623 → 1770503765
Weight 943 · Forman -52,433,003
#8
Weight 887
1104847623 → 1750302337
Weight 887 · Forman -51,286,610