Wakemed Raleigh Campus · Referral network
HSA 34068 · 2014 · 1082 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
-1,664,390
Median F
-452,258
Min F
-109,236,805
Max F
562
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,437
Edges
24,116
Avg clustering
0.553
Density
0.0234
Forman μ
-107.2
Forman σ
109.5
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
470,020
Avg degree
14.79
Max degree
305
Negative F edges
7,927
Positive F edges
73
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 305 · weight 32,509
305
#2
NPI 1811960412
Degree 273 · weight 19,390
273
#3
NPI 1205865995
Degree 184 · weight 18,765
184
#4
NPI 1679561369
Degree 204 · weight 15,809
204
#5
NPI 1902802945
Degree 202 · weight 15,120
202
#6
NPI 1740278415
Degree 184 · weight 13,744
184
#7
NPI 1699763391
Degree 175 · weight 12,737
175
#8
NPI 1982604005
Degree 171 · weight 11,900
171
Most negative curvature
#1
Forman -109,236,805
1205865995 → 1356374219
Weight 2,521 · Forman -109,236,805
#2
Forman -58,590,807
1134152002 → 1356374219
Weight 1,204 · Forman -58,590,807
#3
Forman -56,648,809
1356374219 → 1902990088
Weight 1,183 · Forman -56,648,809
#4
Forman -55,165,772
1356374219 → 1437390440
Weight 1,123 · Forman -55,165,772
#5
Forman -53,659,292
1356374219 → 1952648701
Weight 1,066 · Forman -53,659,292
#6
Forman -52,039,801
1316938681 → 1356374219
Weight 969 · Forman -52,039,801
#7
Forman -49,399,011
1316102676 → 1356374219
Weight 904 · Forman -49,399,011
#8
Forman -47,381,584
1073816500 → 1356374219
Weight 839 · Forman -47,381,584
Strongest referral edges
#1
Weight 2,521
1205865995 → 1356374219
Weight 2,521 · Forman -109,236,805
#2
Weight 1,216
1154302610 → 1265699649
Weight 1,216 · Forman -217,932
#3
Weight 1,204
1134152002 → 1356374219
Weight 1,204 · Forman -58,590,807
#4
Weight 1,183
1356374219 → 1902990088
Weight 1,183 · Forman -56,648,809
#5
Weight 1,124
1356424501 → 1982600789
Weight 1,124 · Forman -176,183
#6
Weight 1,123
1356374219 → 1437390440
Weight 1,123 · Forman -55,165,772
#7
Weight 1,066
1356374219 → 1952648701
Weight 1,066 · Forman -53,659,292
#8
Weight 1,022
1134152002 → 1205865995
Weight 1,022 · Forman -21,302,384