Wakemed Raleigh Campus · Referral network
HSA 34068 · 2017 · 1177 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
-1,732,968
Median F
-412,665
Min F
-152,238,918
Max F
1,564
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,660
Edges
29,289
Avg clustering
0.559
Density
0.0213
Forman μ
-109.6
Forman σ
113.9
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
471,805
Avg degree
13.59
Max degree
358
Negative F edges
7,932
Positive F edges
68
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 1356374219
Degree 358 · weight 40,984
358
#2
NPI 1205865995
Degree 179 · weight 19,345
179
#3
NPI 1114065547
Degree 222 · weight 17,221
222
#4
NPI 1952309494
Degree 178 · weight 14,491
178
#5
NPI 1578788162
Degree 208 · weight 14,286
208
#6
NPI 1457645269
Degree 101 · weight 12,746
101
#7
NPI 1134152002
Degree 114 · weight 10,985
114
#8
NPI 1811960412
Degree 122 · weight 10,476
122
Most negative curvature
#1
Forman -152,238,918
1205865995 → 1356374219
Weight 2,689 · Forman -152,238,918
#2
Forman -109,154,100
1356374219 → 1457645269
Weight 1,817 · Forman -109,154,100
#3
Forman -93,541,097
1134152002 → 1356374219
Weight 1,332 · Forman -93,541,097
#4
Forman -86,639,729
1356374219 → 1437390440
Weight 1,352 · Forman -86,639,729
#5
Forman -79,026,774
1316938681 → 1356374219
Weight 1,100 · Forman -79,026,774
#6
Forman -76,586,473
1356374219 → 1902990088
Weight 1,060 · Forman -76,586,473
#7
Forman -75,765,171
1356374219 → 1497898092
Weight 1,004 · Forman -75,765,171
#8
Forman -74,602,896
1356374219 → 1538161609
Weight 944 · Forman -74,602,896
Strongest referral edges
#1
Weight 2,689
1205865995 → 1356374219
Weight 2,689 · Forman -152,238,918
#2
Weight 1,817
1356374219 → 1457645269
Weight 1,817 · Forman -109,154,100
#3
Weight 1,352
1356374219 → 1437390440
Weight 1,352 · Forman -86,639,729
#4
Weight 1,332
1134152002 → 1356374219
Weight 1,332 · Forman -93,541,097
#5
Weight 1,282
1205865995 → 1457645269
Weight 1,282 · Forman -28,743,786
#6
Weight 1,261
1134152002 → 1205865995
Weight 1,261 · Forman -28,603,220
#7
Weight 1,190
1134152002 → 1457645269
Weight 1,190 · Forman -14,864,782
#8
Weight 1,100
1316938681 → 1356374219
Weight 1,100 · Forman -79,026,774