Select Specialty Hosp-Nw Detroit · Referral network
HSA 23026 · 2015 · 1088 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
-1,120,914
Median F
-297,902
Min F
-46,049,608
Max F
548.8
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,584
Edges
26,202
Avg clustering
0.566
Density
0.0209
Forman μ
-61.4
Forman σ
81
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
440,044
Avg degree
14.71
Max degree
273
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 273 · weight 24,685
273
#2
NPI 1952638272
Degree 245 · weight 21,666
245
#3
NPI 1760436430
Degree 229 · weight 19,763
229
#4
NPI 1306963335
Degree 104 · weight 14,353
104
#5
NPI 1023058575
Degree 193 · weight 13,103
193
#6
NPI 1962427260
Degree 143 · weight 11,411
143
#7
NPI 1497704191
Degree 83 · weight 9,495
83
#8
NPI 1447554654
Degree 121 · weight 9,393
121
Most negative curvature
#1
Forman -46,049,608
1841398880 → 1952638272
Weight 721 · Forman -46,049,608
#2
Forman -38,409,536
1760436430 → 1952638272
Weight 751 · Forman -38,409,536
#3
Forman -38,349,356
1760436430 → 1841398880
Weight 573 · Forman -38,349,356
#4
Forman -29,411,375
1023058575 → 1841398880
Weight 472 · Forman -29,411,375
#5
Forman -28,342,596
1023058575 → 1952638272
Weight 604 · Forman -28,342,596
#6
Forman -26,104,710
1841398880 → 1962427260
Weight 465 · Forman -26,104,710
#7
Forman -25,533,806
1306963335 → 1841398880
Weight 502 · Forman -25,533,806
#8
Forman -23,172,445
1023058575 → 1760436430
Weight 496 · Forman -23,172,445
Strongest referral edges
#1
Weight 924
1831154798 → 1962427260
Weight 924 · Forman -10,669,622
#2
Weight 867
1083607691 → 1457336711
Weight 867 · Forman -1,986,182
#3
Weight 808
1255407631 → 1801121348
Weight 808 · Forman -4,399,008
#4
Weight 774
1043473382 → 1962427260
Weight 774 · Forman -11,001,669
#5
Weight 751
1760436430 → 1952638272
Weight 751 · Forman -38,409,536
#6
Weight 727
1306963335 → 1497704191
Weight 727 · Forman -7,626,626
#7
Weight 721
1841398880 → 1952638272
Weight 721 · Forman -46,049,608
#8
Weight 715
1639116437 → 1851585228
Weight 715 · Forman -2,876