Us Pub Hlth Svc Phoenix Indian Med · Referral network
HSA 3022 · 2016 · 1863 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
-189,849
Median F
-99,095
Min F
-2,663,653
Max F
402
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
3,281
Edges
41,152
Avg clustering
0.500
Density
0.0076
Forman μ
-54.1
Forman σ
67
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
442,913
Avg degree
8.59
Max degree
100
Negative F edges
7,893
Positive F edges
107
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 1407051352
Degree 77 · weight 6,523
77
#2
NPI 1710983481
Degree 79 · weight 6,416
79
#3
NPI 1588717334
Degree 88 · weight 6,295
88
#4
NPI 1811989528
Degree 100 · weight 5,857
100
#5
NPI 1629061445
Degree 88 · weight 5,686
88
#6
NPI 1588617724
Degree 73 · weight 5,668
73
#7
NPI 1457334104
Degree 75 · weight 5,478
75
#8
NPI 1376544577
Degree 58 · weight 5,327
58
Most negative curvature
#1
Forman -2,663,653
1811989528 → 1982604476
Weight 224 · Forman -2,663,653
#2
Forman -2,611,978
1649460593 → 1851377139
Weight 278 · Forman -2,611,978
#3
Forman -2,548,817
1407051352 → 1831176346
Weight 465 · Forman -2,548,817
#4
Forman -2,466,006
1477518041 → 1588617724
Weight 594 · Forman -2,466,006
#5
Forman -2,454,522
1588717334 → 1710983481
Weight 239 · Forman -2,454,522
#6
Forman -2,270,939
1316920242 → 1457334104
Weight 1,104 · Forman -2,270,939
#7
Forman -2,183,778
1811081284 → 1811989528
Weight 199 · Forman -2,183,778
#8
Forman -2,106,158
1083946917 → 1710983481
Weight 635 · Forman -2,106,158
Strongest referral edges
#1
Weight 1,410
1437152436 → 1770580037
Weight 1,410 · Forman -250,961
#2
Weight 1,104
1316920242 → 1457334104
Weight 1,104 · Forman -2,270,939
#3
Weight 949
1427051929 → 1770612848
Weight 949 · Forman -209,491
#4
Weight 928
1508839937 → 1962469791
Weight 928 · Forman -155,071
#5
Weight 785
1417954785 → 1437152436
Weight 785 · Forman -109,653
#6
Weight 775
1023001682 → 1538160270
Weight 775 · Forman -460,199
#7
Weight 737
1023001682 → 1215938147
Weight 737 · Forman -215,743
#8
Weight 725
1295927788 → 1588610422
Weight 725 · Forman -35,241