Wakemed Raleigh Campus · Referral network
HSA 34068 · 2015 · 1088 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
-1,599,704
Median F
-472,845
Min F
-89,921,530
Max F
999.6
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,502
Edges
27,569
Avg clustering
0.576
Density
0.0245
Forman μ
-111.3
Forman σ
115.1
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
481,945
Avg degree
14.71
Max degree
287
Negative F edges
7,951
Positive F edges
49
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 287 · weight 30,382
287
#2
NPI 1811960412
Degree 274 · weight 22,835
274
#3
NPI 1578788162
Degree 245 · weight 19,825
245
#4
NPI 1205865995
Degree 162 · weight 15,671
162
#5
NPI 1831195049
Degree 202 · weight 15,419
202
#6
NPI 1740278415
Degree 172 · weight 12,948
172
#7
NPI 1902802945
Degree 146 · weight 12,284
146
#8
NPI 1588652267
Degree 158 · weight 11,507
158
Most negative curvature
#1
Forman -89,921,530
1205865995 → 1356374219
Weight 2,310 · Forman -89,921,530
#2
Forman -50,468,587
1356374219 → 1437390440
Weight 1,186 · Forman -50,468,587
#3
Forman -48,742,324
1134152002 → 1356374219
Weight 1,041 · Forman -48,742,324
#4
Forman -46,676,548
1356374219 → 1952648701
Weight 1,011 · Forman -46,676,548
#5
Forman -46,334,542
1356374219 → 1902990088
Weight 1,019 · Forman -46,334,542
#6
Forman -45,505,441
1134138506 → 1356374219
Weight 976 · Forman -45,505,441
#7
Forman -44,669,079
1316102676 → 1356374219
Weight 909 · Forman -44,669,079
#8
Forman -43,793,875
1356374219 → 1740694231
Weight 888 · Forman -43,793,875
Strongest referral edges
#1
Weight 2,310
1205865995 → 1356374219
Weight 2,310 · Forman -89,921,530
#2
Weight 1,186
1356374219 → 1437390440
Weight 1,186 · Forman -50,468,587
#3
Weight 1,181
1154302610 → 1265699649
Weight 1,181 · Forman -213,672
#4
Weight 1,098
1356424501 → 1982600789
Weight 1,098 · Forman -106,468
#5
Weight 1,041
1134152002 → 1356374219
Weight 1,041 · Forman -48,742,324
#6
Weight 1,019
1356374219 → 1902990088
Weight 1,019 · Forman -46,334,542
#7
Weight 1,011
1356374219 → 1952648701
Weight 1,011 · Forman -46,676,548
#8
Weight 976
1134138506 → 1356374219
Weight 976 · Forman -45,505,441