Us Pub Hlth Svc Phoenix Indian Med · Referral network
HSA 3022 · 2015 · 1867 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
-209,012
Median F
-96,584
Min F
-4,488,579
Max F
598
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
3,132
Edges
38,512
Avg clustering
0.517
Density
0.0079
Forman μ
-65.1
Forman σ
87.8
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
439,531
Avg degree
8.57
Max degree
116
Negative F edges
7,874
Positive F edges
126
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 1801865415
Degree 112 · weight 7,612
112
#2
NPI 1992793335
Degree 85 · weight 6,862
85
#3
NPI 1811989528
Degree 116 · weight 6,633
116
#4
NPI 1982604476
Degree 112 · weight 6,475
112
#5
NPI 1457334104
Degree 78 · weight 6,196
78
#6
NPI 1477518041
Degree 71 · weight 5,779
71
#7
NPI 1710983481
Degree 82 · weight 5,609
82
#8
NPI 1629061445
Degree 77 · weight 5,540
77
Most negative curvature
#1
Forman -4,488,579
1811989528 → 1982604476
Weight 319 · Forman -4,488,579
#2
Forman -3,980,521
1811081284 → 1811989528
Weight 308 · Forman -3,980,521
#3
Forman -3,738,025
1811081284 → 1982604476
Weight 303 · Forman -3,738,025
#4
Forman -3,284,097
1801865415 → 1841276334
Weight 245 · Forman -3,284,097
#5
Forman -2,889,395
1316920242 → 1457334104
Weight 1,254 · Forman -2,889,395
#6
Forman -2,885,161
1376535237 → 1811989528
Weight 296 · Forman -2,885,161
#7
Forman -2,838,228
1659377398 → 1801865415
Weight 322 · Forman -2,838,228
#8
Forman -2,616,914
1366405011 → 1811989528
Weight 310 · Forman -2,616,914
Strongest referral edges
#1
Weight 1,347
1437152436 → 1770580037
Weight 1,347 · Forman -350,856
#2
Weight 1,254
1316920242 → 1457334104
Weight 1,254 · Forman -2,889,395
#3
Weight 1,020
1295927788 → 1841230976
Weight 1,020 · Forman -294,049
#4
Weight 968
1023001682 → 1538160270
Weight 968 · Forman -632,759
#5
Weight 895
1427051929 → 1770612848
Weight 895 · Forman -186,740
#6
Weight 789
1457334104 → 1629055629
Weight 789 · Forman -2,219,889
#7
Weight 709
1023001682 → 1215938147
Weight 709 · Forman -369,576
#8
Weight 690
1023001682 → 1083600845
Weight 690 · Forman -376,076