Us Pub Hlth Svc Phoenix Indian Med · Referral network
HSA 3022 · 2017 · 2030 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
-275,902
Median F
-79,282
Min F
-14,617,173
Max F
392
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
3,526
Edges
42,307
Avg clustering
0.523
Density
0.0068
Forman μ
-79.6
Forman σ
177.2
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
439,662
Avg degree
7.88
Max degree
202
Negative F edges
7,883
Positive F edges
117
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 1992793335
Degree 202 · weight 18,776
202
#2
NPI 1457334104
Degree 102 · weight 8,234
102
#3
NPI 1588717334
Degree 92 · weight 6,779
92
#4
NPI 1710983481
Degree 73 · weight 6,338
73
#5
NPI 1033439328
Degree 94 · weight 6,324
94
#6
NPI 1649460593
Degree 107 · weight 5,469
107
#7
NPI 1225155716
Degree 81 · weight 5,057
81
#8
NPI 1851377139
Degree 106 · weight 4,958
106
Most negative curvature
#1
Forman -14,617,173
1962484949 → 1992793335
Weight 703 · Forman -14,617,173
#2
Forman -13,062,292
1063405090 → 1992793335
Weight 562 · Forman -13,062,292
#3
Forman -12,471,692
1386645489 → 1992793335
Weight 498 · Forman -12,471,692
#4
Forman -12,432,357
1063477495 → 1992793335
Weight 512 · Forman -12,432,357
#5
Forman -12,160,878
1164461729 → 1992793335
Weight 478 · Forman -12,160,878
#6
Forman -11,846,316
1346241445 → 1992793335
Weight 452 · Forman -11,846,316
#7
Forman -11,122,376
1659593739 → 1992793335
Weight 409 · Forman -11,122,376
#8
Forman -10,687,364
1942201694 → 1992793335
Weight 355 · Forman -10,687,364
Strongest referral edges
#1
Weight 1,435
1316920242 → 1457334104
Weight 1,435 · Forman -5,103,142
#2
Weight 972
1457334104 → 1629055629
Weight 972 · Forman -4,124,922
#3
Weight 802
1295927788 → 1588610422
Weight 802 · Forman -41,747
#4
Weight 780
1376509000 → 1407181928
Weight 780 · Forman -94,960
#5
Weight 724
1023001682 → 1538160270
Weight 724 · Forman -292,791
#6
Weight 703
1962484949 → 1992793335
Weight 703 · Forman -14,617,173
#7
Weight 635
1023001682 → 1083600845
Weight 635 · Forman -169,395
#8
Weight 630
1033162581 → 1528064151
Weight 630 · Forman -25,512