Univ Of Minnesota Medical Ctr · Referral network
HSA 24076 · 2016 · 1781 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
-542,575
Median F
-110,297
Min F
-16,868,099
Max F
480
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,946
Edges
28,119
Avg clustering
0.560
Density
0.0065
Forman μ
-52.9
Forman σ
73
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
381,139
Avg degree
8.98
Max degree
204
Negative F edges
7,886
Positive F edges
114
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 1790739381
Degree 204 · weight 13,041
204
#2
NPI 1285673947
Degree 188 · weight 11,739
188
#3
NPI 1386727873
Degree 169 · weight 11,560
169
#4
NPI 1043365976
Degree 189 · weight 10,990
189
#5
NPI 1518911932
Degree 181 · weight 10,653
181
#6
NPI 1053552505
Degree 169 · weight 9,607
169
#7
NPI 1710972864
Degree 108 · weight 9,283
108
#8
NPI 1174746200
Degree 162 · weight 9,196
162
Most negative curvature
#1
Forman -16,868,099
1285673947 → 1790739381
Weight 488 · Forman -16,868,099
#2
Forman -15,163,360
1043365976 → 1790739381
Weight 402 · Forman -15,163,360
#3
Forman -13,972,132
1043365976 → 1285673947
Weight 409 · Forman -13,972,132
#4
Forman -13,970,640
1053552505 → 1790739381
Weight 413 · Forman -13,970,640
#5
Forman -13,912,198
1518911932 → 1790739381
Weight 375 · Forman -13,912,198
#6
Forman -13,294,715
1174746200 → 1790739381
Weight 404 · Forman -13,294,715
#7
Forman -13,281,517
1144499187 → 1386727873
Weight 758 · Forman -13,281,517
#8
Forman -12,746,521
1285673947 → 1518911932
Weight 381 · Forman -12,746,521
Strongest referral edges
#1
Weight 880
1053516443 → 1215997168
Weight 880 · Forman -74,423
#2
Weight 758
1144499187 → 1386727873
Weight 758 · Forman -13,281,517
#3
Weight 662
1386727873 → 1902826449
Weight 662 · Forman -10,341,954
#4
Weight 635
1205800240 → 1386727873
Weight 635 · Forman -11,321,149
#5
Weight 629
1477569895 → 1710972864
Weight 629 · Forman -4,318,060
#6
Weight 615
1205035961 → 1710972864
Weight 615 · Forman -4,296,408
#7
Weight 585
1144499187 → 1205800240
Weight 585 · Forman -7,317,127
#8
Weight 576
1164505624 → 1386727873
Weight 576 · Forman -10,400,627