University Of Utah Health Care · Referral network
HSA 46028 · 2017 · 1357 physicians · 5510 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
-1,248,514
Median F
-168,434
Min F
-64,861,816
Max F
388
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,136
Edges
16,995
Avg clustering
0.536
Density
0.0075
Forman μ
-95.9
Forman σ
120.6
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
324,052
Avg degree
8.12
Max degree
337
Negative F edges
5,391
Positive F edges
119
Nonzero F edges
5,510
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 1831121938
Degree 337 · weight 31,838
337
#2
NPI 1447381447
Degree 157 · weight 13,695
157
#3
NPI 1003017666
Degree 133 · weight 11,430
133
#4
NPI 1063404929
Degree 133 · weight 11,168
133
#5
NPI 1902071673
Degree 134 · weight 11,122
134
#6
NPI 1841282787
Degree 92 · weight 8,271
92
#7
NPI 1740370352
Degree 95 · weight 8,237
95
#8
NPI 1992712285
Degree 95 · weight 8,153
95
Most negative curvature
#1
Forman -64,861,816
1447381447 → 1831121938
Weight 1,127 · Forman -64,861,816
#2
Forman -56,781,278
1831121938 → 1902071673
Weight 961 · Forman -56,781,278
#3
Forman -56,423,267
1003017666 → 1831121938
Weight 947 · Forman -56,423,267
#4
Forman -48,590,418
1649298928 → 1831121938
Weight 811 · Forman -48,590,418
#5
Forman -47,446,629
1427255967 → 1831121938
Weight 804 · Forman -47,446,629
#6
Forman -43,916,994
1285882019 → 1831121938
Weight 709 · Forman -43,916,994
#7
Forman -43,476,846
1790866580 → 1831121938
Weight 681 · Forman -43,476,846
#8
Forman -43,019,876
1467505206 → 1831121938
Weight 676 · Forman -43,019,876
Strongest referral edges
#1
Weight 1,568
1134457682 → 1659329449
Weight 1,568 · Forman -1,973,900
#2
Weight 1,127
1447381447 → 1831121938
Weight 1,127 · Forman -64,861,816
#3
Weight 1,099
1063404929 → 1992712285
Weight 1,099 · Forman -11,490,325
#4
Weight 972
1063404929 → 1841282787
Weight 972 · Forman -10,497,227
#5
Weight 961
1831121938 → 1902071673
Weight 961 · Forman -56,781,278
#6
Weight 947
1003017666 → 1831121938
Weight 947 · Forman -56,423,267
#7
Weight 936
1841282787 → 1992712285
Weight 936 · Forman -7,140,428
#8
Weight 915
1568489375 → 1841267309
Weight 915 · Forman -113,912