Unity Hospital · Referral network
HSA 33107 · 2015 · 1404 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
-942,113
Median F
-239,143
Min F
-49,182,616
Max F
420
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,097
Edges
27,731
Avg clustering
0.591
Density
0.0126
Forman μ
-85
Forman σ
123.8
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
395,365
Avg degree
11.40
Max degree
301
Negative F edges
7,884
Positive F edges
116
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 1053353854
Degree 301 · weight 27,960
301
#2
NPI 1013959840
Degree 230 · weight 17,695
230
#3
NPI 1255373056
Degree 128 · weight 11,021
128
#4
NPI 1245227776
Degree 151 · weight 10,382
151
#5
NPI 1740392539
Degree 130 · weight 10,028
130
#6
NPI 1417095076
Degree 126 · weight 9,857
126
#7
NPI 1578503975
Degree 134 · weight 8,376
134
#8
NPI 1861501413
Degree 108 · weight 7,969
108
Most negative curvature
#1
Forman -49,182,616
1013959840 → 1053353854
Weight 728 · Forman -49,182,616
#2
Forman -40,056,061
1053353854 → 1255373056
Weight 825 · Forman -40,056,061
#3
Forman -33,996,840
1053353854 → 1245227776
Weight 564 · Forman -33,996,840
#4
Forman -28,999,188
1053353854 → 1578503975
Weight 449 · Forman -28,999,188
#5
Forman -28,347,680
1053353854 → 1609893239
Weight 448 · Forman -28,347,680
#6
Forman -26,840,057
1053353854 → 1679593768
Weight 421 · Forman -26,840,057
#7
Forman -26,658,592
1053353854 → 1073559118
Weight 475 · Forman -26,658,592
#8
Forman -26,212,947
1053353854 → 1972545770
Weight 402 · Forman -26,212,947
Strongest referral edges
#1
Weight 825
1053353854 → 1255373056
Weight 825 · Forman -40,056,061
#2
Weight 728
1013959840 → 1053353854
Weight 728 · Forman -49,182,616
#3
Weight 630
1245401348 → 1902841992
Weight 630 · Forman -69,213
#4
Weight 623
1013959840 → 1255373056
Weight 623 · Forman -20,998,573
#5
Weight 622
1013959840 → 1417999236
Weight 622 · Forman -16,981,793
#6
Weight 599
1205853876 → 1861501413
Weight 599 · Forman -4,535,844
#7
Weight 582
1417095076 → 1740392539
Weight 582 · Forman -9,229,537
#8
Weight 572
1760764682 → 1902841992
Weight 572 · Forman -56,766