Us Pub Hlth Svc Phoenix Indian Med · Referral network
HSA 3022 · 2014 · 1812 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
-227,504
Median F
-107,057
Min F
-5,078,446
Max F
532
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
3,046
Edges
38,987
Avg clustering
0.524
Density
0.0084
Forman μ
-60.2
Forman σ
71.4
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
441,121
Avg degree
8.83
Max degree
119
Negative F edges
7,875
Positive F edges
125
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 1982604476
Degree 119 · weight 7,077
119
#2
NPI 1902813678
Degree 79 · weight 6,997
79
#3
NPI 1811989528
Degree 115 · weight 6,860
115
#4
NPI 1477518041
Degree 88 · weight 6,652
88
#5
NPI 1457334104
Degree 84 · weight 6,177
84
#6
NPI 1841276334
Degree 98 · weight 6,087
98
#7
NPI 1588617724
Degree 71 · weight 6,031
71
#8
NPI 1386645489
Degree 70 · weight 6,011
70
Most negative curvature
#1
Forman -5,078,446
1811989528 → 1982604476
Weight 356 · Forman -5,078,446
#2
Forman -4,215,915
1811081284 → 1982604476
Weight 305 · Forman -4,215,915
#3
Forman -4,007,382
1811081284 → 1811989528
Weight 297 · Forman -4,007,382
#4
Forman -3,427,766
1477518041 → 1588617724
Weight 594 · Forman -3,427,766
#5
Forman -3,091,191
1316920242 → 1457334104
Weight 1,257 · Forman -3,091,191
#6
Forman -3,032,330
1376535237 → 1982604476
Weight 251 · Forman -3,032,330
#7
Forman -2,789,032
1366405011 → 1982604476
Weight 318 · Forman -2,789,032
#8
Forman -2,737,089
1376535237 → 1811989528
Weight 225 · Forman -2,737,089
Strongest referral edges
#1
Weight 1,257
1316920242 → 1457334104
Weight 1,257 · Forman -3,091,191
#2
Weight 1,095
1437152436 → 1770580037
Weight 1,095 · Forman -348,324
#3
Weight 1,053
1295927788 → 1841230976
Weight 1,053 · Forman -375,436
#4
Weight 992
1023001682 → 1538160270
Weight 992 · Forman -451,276
#5
Weight 964
1023001682 → 1134190135
Weight 964 · Forman -366,519
#6
Weight 903
1295927788 → 1588610422
Weight 903 · Forman -365,451
#7
Weight 883
1437123775 → 1942274105
Weight 883 · Forman -114,955
#8
Weight 682
1457334104 → 1629055629
Weight 682 · Forman -2,181,627