Select Specialty Hospital-Omaha · Referral network
HSA 28056 · 2016 · 1231 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
-2,816,823
Median F
-462,466
Min F
-83,880,301
Max F
632
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,803
Edges
43,380
Avg clustering
0.646
Density
0.0267
Forman μ
-168.7
Forman σ
162.6
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
466,004
Avg degree
13.00
Max degree
342
Negative F edges
7,960
Positive F edges
40
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 333 · weight 26,772
333
#2
NPI 1558316133
Degree 327 · weight 26,476
327
#3
NPI 1295787257
Degree 341 · weight 25,837
341
#4
NPI 1376593707
Degree 342 · weight 25,705
342
#5
NPI 1790861920
Degree 286 · weight 24,614
286
#6
NPI 1598726580
Degree 257 · weight 23,392
257
#7
NPI 1073571741
Degree 204 · weight 17,084
204
#8
NPI 1245291236
Degree 177 · weight 13,391
177
Most negative curvature
#1
Forman -83,880,301
1295787257 → 1558316133
Weight 985 · Forman -83,880,301
#2
Forman -74,049,088
1295787257 → 1376593707
Weight 743 · Forman -74,049,088
#3
Forman -71,655,524
1376593707 → 1558316133
Weight 732 · Forman -71,655,524
#4
Forman -61,149,771
1013997741 → 1295787257
Weight 502 · Forman -61,149,771
#5
Forman -60,333,327
1013997741 → 1558316133
Weight 514 · Forman -60,333,327
#6
Forman -51,617,499
1013997741 → 1861503427
Weight 1,407 · Forman -51,617,499
#7
Forman -51,603,957
1013997741 → 1376593707
Weight 364 · Forman -51,603,957
#8
Forman -49,518,813
1295787257 → 1386868982
Weight 1,099 · Forman -49,518,813
Strongest referral edges
#1
Weight 1,407
1013997741 → 1861503427
Weight 1,407 · Forman -51,617,499
#2
Weight 1,234
1295829042 → 1588758312
Weight 1,234 · Forman -1,928,968
#3
Weight 1,195
1316973381 → 1790861920
Weight 1,195 · Forman -39,048,110
#4
Weight 1,138
1386868982 → 1558316133
Weight 1,138 · Forman -48,093,879
#5
Weight 1,099
1295787257 → 1386868982
Weight 1,099 · Forman -49,518,813
#6
Weight 985
1295787257 → 1558316133
Weight 985 · Forman -83,880,301
#7
Weight 944
1437110525 → 1598726580
Weight 944 · Forman -29,526,649
#8
Weight 920
1124079819 → 1598726580
Weight 920 · Forman -28,822,866