Unity Hospital · Referral network
HSA 33107 · 2016 · 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
-518,802
Median F
-241,079
Min F
-15,806,269
Max F
516
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,190
Edges
29,360
Avg clustering
0.566
Density
0.0122
Forman μ
-73.7
Forman σ
103.1
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
382,283
Avg degree
11.40
Max degree
194
Negative F edges
7,887
Positive F edges
113
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 1013959840
Degree 194 · weight 14,406
194
#2
NPI 1245227776
Degree 155 · weight 11,423
155
#3
NPI 1396908786
Degree 172 · weight 9,909
172
#4
NPI 1740392539
Degree 123 · weight 8,923
123
#5
NPI 1417095076
Degree 118 · weight 8,545
118
#6
NPI 1649231317
Degree 118 · weight 7,627
118
#7
NPI 1780796458
Degree 114 · weight 7,613
114
#8
NPI 1255373056
Degree 101 · weight 7,601
101
Most negative curvature
#1
Forman -15,806,269
1013959840 → 1245227776
Weight 516 · Forman -15,806,269
#2
Forman -11,845,662
1013959840 → 1255373056
Weight 465 · Forman -11,845,662
#3
Forman -11,010,886
1013959840 → 1417999236
Weight 532 · Forman -11,010,886
#4
Forman -10,056,792
1013959840 → 1578503975
Weight 325 · Forman -10,056,792
#5
Forman -8,574,130
1013959840 → 1649231317
Weight 226 · Forman -8,574,130
#6
Forman -8,246,992
1013959840 → 1851333611
Weight 339 · Forman -8,246,992
#7
Forman -7,919,199
1013959840 → 1609893239
Weight 247 · Forman -7,919,199
#8
Forman -7,883,418
1013959840 → 1881636686
Weight 286 · Forman -7,883,418
Strongest referral edges
#1
Weight 733
1245401348 → 1902841992
Weight 733 · Forman -65,527
#2
Weight 637
1760764682 → 1902841992
Weight 637 · Forman -51,425
#3
Weight 541
1194725788 → 1952309544
Weight 541 · Forman -47,259
#4
Weight 532
1013959840 → 1417999236
Weight 532 · Forman -11,010,886
#5
Weight 524
1427072776 → 1609861533
Weight 524 · Forman -19,865
#6
Weight 519
1659328979 → 1982778254
Weight 519 · Forman -38,279
#7
Weight 518
1740392539 → 1972615755
Weight 518 · Forman -5,085,885
#8
Weight 516
1013959840 → 1245227776
Weight 516 · Forman -15,806,269