Univ Of Minnesota Medical Ctr · Referral network
HSA 24076 · 2014 · 1712 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
-419,956
Median F
-94,054
Min F
-13,232,546
Max F
166
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,839
Edges
28,709
Avg clustering
0.580
Density
0.0071
Forman μ
-45.2
Forman σ
64.4
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
393,385
Avg degree
9.35
Max degree
179
Negative F edges
7,909
Positive F edges
91
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 1285673947
Degree 179 · weight 12,530
179
#2
NPI 1902826449
Degree 153 · weight 10,308
153
#3
NPI 1790739381
Degree 164 · weight 10,278
164
#4
NPI 1174746200
Degree 153 · weight 10,188
153
#5
NPI 1386727873
Degree 152 · weight 10,060
152
#6
NPI 1043365976
Degree 153 · weight 9,942
153
#7
NPI 1144499187
Degree 133 · weight 9,440
133
#8
NPI 1053552505
Degree 141 · weight 9,339
141
Most negative curvature
#1
Forman -13,232,546
1386727873 → 1902826449
Weight 702 · Forman -13,232,546
#2
Forman -12,674,283
1285673947 → 1790739381
Weight 450 · Forman -12,674,283
#3
Forman -11,943,937
1174746200 → 1285673947
Weight 448 · Forman -11,943,937
#4
Forman -11,717,409
1043365976 → 1285673947
Weight 433 · Forman -11,717,409
#5
Forman -11,714,630
1144499187 → 1902826449
Weight 670 · Forman -11,714,630
#6
Forman -11,207,280
1144499187 → 1386727873
Weight 630 · Forman -11,207,280
#7
Forman -10,961,246
1053552505 → 1285673947
Weight 427 · Forman -10,961,246
#8
Forman -10,041,494
1174746200 → 1790739381
Weight 403 · Forman -10,041,494
Strongest referral edges
#1
Weight 785
1326150889 → 1558393157
Weight 785 · Forman -3,332
#2
Weight 702
1386727873 → 1902826449
Weight 702 · Forman -13,232,546
#3
Weight 670
1144499187 → 1902826449
Weight 670 · Forman -11,714,630
#4
Weight 659
1477569895 → 1932159894
Weight 659 · Forman -1,350,703
#5
Weight 644
1477569895 → 1710972864
Weight 644 · Forman -1,197,605
#6
Weight 630
1144499187 → 1386727873
Weight 630 · Forman -11,207,280
#7
Weight 559
1710972864 → 1932159894
Weight 559 · Forman -987,577
#8
Weight 536
1144499187 → 1205800240
Weight 536 · Forman -6,620,136