Select Specialty Hosp-Nw Detroit · Referral network
HSA 23026 · 2014 · 1100 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
-1,104,891
Median F
-278,607
Min F
-40,929,877
Max F
424
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,609
Edges
29,697
Avg clustering
0.596
Density
0.0230
Forman μ
-67.2
Forman σ
90.4
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
443,995
Avg degree
14.55
Max degree
279
Negative F edges
7,950
Positive F edges
50
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 1841398880
Degree 279 · weight 25,560
279
#2
NPI 1760436430
Degree 247 · weight 19,982
247
#3
NPI 1952638272
Degree 203 · weight 15,394
203
#4
NPI 1023058575
Degree 200 · weight 14,097
200
#5
NPI 1962427260
Degree 156 · weight 12,617
156
#6
NPI 1306963335
Degree 91 · weight 11,849
91
#7
NPI 1811179054
Degree 90 · weight 11,182
90
#8
NPI 1104899269
Degree 88 · weight 9,940
88
Most negative curvature
#1
Forman -40,929,877
1760436430 → 1841398880
Weight 554 · Forman -40,929,877
#2
Forman -34,423,747
1841398880 → 1952638272
Weight 561 · Forman -34,423,747
#3
Forman -32,724,555
1023058575 → 1841398880
Weight 523 · Forman -32,724,555
#4
Forman -30,926,209
1841398880 → 1962427260
Weight 578 · Forman -30,926,209
#5
Forman -28,858,154
1760436430 → 1952638272
Weight 560 · Forman -28,858,154
#6
Forman -27,165,367
1023058575 → 1760436430
Weight 515 · Forman -27,165,367
#7
Forman -24,578,647
1750319778 → 1841398880
Weight 403 · Forman -24,578,647
#8
Forman -23,835,195
1831154798 → 1841398880
Weight 518 · Forman -23,835,195
Strongest referral edges
#1
Weight 940
1831154798 → 1962427260
Weight 940 · Forman -11,073,995
#2
Weight 929
1083607691 → 1457336711
Weight 929 · Forman -2,680,767
#3
Weight 883
1023069770 → 1255407631
Weight 883 · Forman -5,294,797
#4
Weight 852
1568561959 → 1689781981
Weight 852 · Forman -224,476
#5
Weight 803
1255407631 → 1801121348
Weight 803 · Forman -4,378,122
#6
Weight 721
1306963335 → 1811179054
Weight 721 · Forman -6,932,231
#7
Weight 711
1104899269 → 1699725606
Weight 711 · Forman -5,453,079
#8
Weight 682
1306963335 → 1770515504
Weight 682 · Forman -6,182,579