Select Specialty Hospital-Omaha · Referral network
HSA 28056 · 2014 · 1174 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
-2,199,790
Median F
-441,089
Min F
-70,149,872
Max F
485.1
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,651
Edges
41,876
Avg clustering
0.636
Density
0.0307
Forman μ
-145.2
Forman σ
134.9
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
468,905
Avg degree
13.63
Max degree
328
Negative F edges
7,963
Positive F edges
37
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 1013997741
Degree 328 · weight 29,840
328
#2
NPI 1558316133
Degree 321 · weight 25,989
321
#3
NPI 1295787257
Degree 300 · weight 24,080
300
#4
NPI 1598726580
Degree 228 · weight 21,474
228
#5
NPI 1376593707
Degree 282 · weight 21,188
282
#6
NPI 1790861920
Degree 202 · weight 14,720
202
#7
NPI 1508811647
Degree 204 · weight 11,262
204
#8
NPI 1437110525
Degree 96 · weight 10,845
96
Most negative curvature
#1
Forman -70,149,872
1295787257 → 1558316133
Weight 860 · Forman -70,149,872
#2
Forman -65,880,380
1013997741 → 1558316133
Weight 594 · Forman -65,880,380
#3
Forman -58,527,381
1013997741 → 1295787257
Weight 537 · Forman -58,527,381
#4
Forman -55,705,665
1376593707 → 1558316133
Weight 645 · Forman -55,705,665
#5
Forman -52,979,070
1013997741 → 1861503427
Weight 1,356 · Forman -52,979,070
#6
Forman -48,087,637
1295787257 → 1376593707
Weight 569 · Forman -48,087,637
#7
Forman -42,706,208
1013997741 → 1376593707
Weight 337 · Forman -42,706,208
#8
Forman -42,416,105
1386868982 → 1558316133
Weight 929 · Forman -42,416,105
Strongest referral edges
#1
Weight 1,356
1013997741 → 1861503427
Weight 1,356 · Forman -52,979,070
#2
Weight 970
1437110525 → 1598726580
Weight 970 · Forman -24,949,665
#3
Weight 963
1245291236 → 1497969760
Weight 963 · Forman -5,314,399
#4
Weight 929
1386868982 → 1558316133
Weight 929 · Forman -42,416,105
#5
Weight 896
1558316133 → 1740238278
Weight 896 · Forman -41,251,392
#6
Weight 889
1295787257 → 1386868982
Weight 889 · Forman -36,206,130
#7
Weight 878
1295787257 → 1740238278
Weight 878 · Forman -35,581,818
#8
Weight 860
1295787257 → 1558316133
Weight 860 · Forman -70,149,872