Select Specialty Hospital-Omaha · Referral network
HSA 28056 · 2017 · 1304 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
-2,729,550
Median F
-510,634
Min F
-73,503,745
Max F
528
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,975
Edges
48,409
Avg clustering
0.640
Density
0.0248
Forman μ
-181.1
Forman σ
181.6
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
459,880
Avg degree
12.27
Max degree
382
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 382 · weight 30,328
382
#2
NPI 1790861920
Degree 338 · weight 27,591
338
#3
NPI 1558316133
Degree 309 · weight 22,751
309
#4
NPI 1376593707
Degree 306 · weight 21,858
306
#5
NPI 1598726580
Degree 259 · weight 20,129
259
#6
NPI 1295787257
Degree 279 · weight 20,042
279
#7
NPI 1134348071
Degree 181 · weight 15,820
181
#8
NPI 1386868982
Degree 120 · weight 14,509
120
Most negative curvature
#1
Forman -73,503,745
1013997741 → 1861503427
Weight 1,715 · Forman -73,503,745
#2
Forman -58,805,258
1013997741 → 1386868982
Weight 879 · Forman -58,805,258
#3
Forman -55,973,219
1013997741 → 1558316133
Weight 380 · Forman -55,973,219
#4
Forman -54,907,021
1295787257 → 1558316133
Weight 720 · Forman -54,907,021
#5
Forman -50,777,822
1386868982 → 1558316133
Weight 1,385 · Forman -50,777,822
#6
Forman -50,332,318
1013997741 → 1376593707
Weight 323 · Forman -50,332,318
#7
Forman -49,122,488
1013997741 → 1295787257
Weight 340 · Forman -49,122,488
#8
Forman -49,042,249
1376593707 → 1558316133
Weight 505 · Forman -49,042,249
Strongest referral edges
#1
Weight 1,715
1013997741 → 1861503427
Weight 1,715 · Forman -73,503,745
#2
Weight 1,394
1295829042 → 1588758312
Weight 1,394 · Forman -986,348
#3
Weight 1,385
1386868982 → 1558316133
Weight 1,385 · Forman -50,777,822
#4
Weight 1,259
1295787257 → 1386868982
Weight 1,259 · Forman -41,059,205
#5
Weight 1,030
1316973381 → 1790861920
Weight 1,030 · Forman -48,623,299
#6
Weight 953
1376593707 → 1386868982
Weight 953 · Forman -39,935,289
#7
Weight 879
1013997741 → 1386868982
Weight 879 · Forman -58,805,258
#8
Weight 859
1235183369 → 1881642775
Weight 859 · Forman -7,000,671