Select Specialty Hosp-Nw Detroit · Referral network
HSA 23026 · 2016 · 1089 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
-1,177,592
Median F
-261,261
Min F
-50,770,564
Max F
654
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,587
Edges
25,432
Avg clustering
0.567
Density
0.0202
Forman μ
-63
Forman σ
85.7
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
437,445
Avg degree
14.69
Max degree
303
Negative F edges
7,941
Positive F edges
59
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 303 · weight 27,004
303
#2
NPI 1952638272
Degree 240 · weight 19,987
240
#3
NPI 1760436430
Degree 240 · weight 19,448
240
#4
NPI 1023058575
Degree 208 · weight 14,156
208
#5
NPI 1962427260
Degree 143 · weight 10,539
143
#6
NPI 1043473382
Degree 134 · weight 10,457
134
#7
NPI 1306963335
Degree 85 · weight 10,281
85
#8
NPI 1699725606
Degree 88 · weight 9,891
88
Most negative curvature
#1
Forman -50,770,564
1841398880 → 1952638272
Weight 783 · Forman -50,770,564
#2
Forman -48,357,694
1760436430 → 1841398880
Weight 707 · Forman -48,357,694
#3
Forman -39,051,977
1023058575 → 1841398880
Weight 592 · Forman -39,051,977
#4
Forman -34,532,325
1760436430 → 1952638272
Weight 646 · Forman -34,532,325
#5
Forman -30,517,908
1831154798 → 1841398880
Weight 575 · Forman -30,517,908
#6
Forman -29,886,676
1841398880 → 1861633414
Weight 458 · Forman -29,886,676
#7
Forman -29,521,553
1841398880 → 1962427260
Weight 463 · Forman -29,521,553
#8
Forman -29,044,809
1043473382 → 1841398880
Weight 458 · Forman -29,044,809
Strongest referral edges
#1
Weight 953
1831154798 → 1962427260
Weight 953 · Forman -11,475,737
#2
Weight 871
1255407631 → 1801121348
Weight 871 · Forman -2,276,887
#3
Weight 844
1043473382 → 1962427260
Weight 844 · Forman -13,263,228
#4
Weight 824
1104899269 → 1699725606
Weight 824 · Forman -6,001,837
#5
Weight 823
1043473382 → 1831154798
Weight 823 · Forman -10,237,216
#6
Weight 783
1841398880 → 1952638272
Weight 783 · Forman -50,770,564
#7
Weight 755
1083607691 → 1457336711
Weight 755 · Forman -2,784,664
#8
Weight 753
1124077953 → 1952350126
Weight 753 · Forman -2,156,937