Univ Of Minnesota Medical Ctr · Referral network
HSA 24076 · 2017 · 1921 physicians · 7779 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
-325,815
Median F
-102,584
Min F
-16,064,692
Max F
932
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
3,039
Edges
28,171
Avg clustering
0.558
Density
0.0061
Forman μ
-53.6
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
363,627
Avg degree
8.10
Max degree
173
Negative F edges
7,621
Positive F edges
158
Nonzero F edges
7,779
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 1386727873
Degree 170 · weight 10,554
170
#2
NPI 1710972864
Degree 124 · weight 9,970
124
#3
NPI 1144499187
Degree 149 · weight 9,493
149
#4
NPI 1790739381
Degree 173 · weight 9,315
173
#5
NPI 1164505624
Degree 105 · weight 6,717
105
#6
NPI 1902826449
Degree 99 · weight 6,444
99
#7
NPI 1285673947
Degree 131 · weight 6,345
131
#8
NPI 1518911932
Degree 134 · weight 5,397
134
Most negative curvature
#1
Forman -16,064,692
1144499187 → 1386727873
Weight 862 · Forman -16,064,692
#2
Forman -10,838,418
1386727873 → 1902826449
Weight 677 · Forman -10,838,418
#3
Forman -9,680,304
1164505624 → 1386727873
Weight 520 · Forman -9,680,304
#4
Forman -9,491,872
1144499187 → 1902826449
Weight 724 · Forman -9,491,872
#5
Forman -8,145,189
1144499187 → 1164505624
Weight 510 · Forman -8,145,189
#6
Forman -8,067,615
1205800240 → 1386727873
Weight 488 · Forman -8,067,615
#7
Forman -7,030,894
1386727873 → 1730265760
Weight 391 · Forman -7,030,894
#8
Forman -6,705,621
1144499187 → 1205800240
Weight 495 · Forman -6,705,621
Strongest referral edges
#1
Weight 862
1144499187 → 1386727873
Weight 862 · Forman -16,064,692
#2
Weight 724
1144499187 → 1902826449
Weight 724 · Forman -9,491,872
#3
Weight 682
1205035961 → 1710972864
Weight 682 · Forman -5,491,755
#4
Weight 677
1386727873 → 1902826449
Weight 677 · Forman -10,838,418
#5
Weight 673
1053516443 → 1215997168
Weight 673 · Forman -72,420
#6
Weight 609
1255545687 → 1376759845
Weight 609 · Forman -65,771
#7
Weight 586
1477569895 → 1710972864
Weight 586 · Forman -5,083,319
#8
Weight 576
1205035961 → 1932159894
Weight 576 · Forman -1,078,078