Unity Hospital · Referral network
HSA 33107 · 2017 · 1426 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
-565,907
Median F
-258,655
Min F
-12,212,090
Max F
445
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,351
Edges
31,331
Avg clustering
0.545
Density
0.0113
Forman μ
-71.3
Forman σ
104.8
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
385,299
Avg degree
11.22
Max degree
182
Negative F edges
7,865
Positive F edges
135
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 176 · weight 13,571
176
#2
NPI 1740392539
Degree 127 · weight 11,108
127
#3
NPI 1396908786
Degree 182 · weight 10,840
182
#4
NPI 1417095076
Degree 129 · weight 10,447
129
#5
NPI 1245227776
Degree 148 · weight 9,771
148
#6
NPI 1518937671
Degree 142 · weight 9,167
142
#7
NPI 1649231317
Degree 133 · weight 9,014
133
#8
NPI 1578503975
Degree 135 · weight 8,551
135
Most negative curvature
#1
Forman -12,212,090
1013959840 → 1245227776
Weight 439 · Forman -12,212,090
#2
Forman -9,441,213
1013959840 → 1578503975
Weight 312 · Forman -9,441,213
#3
Forman -9,324,129
1013959840 → 1255373056
Weight 385 · Forman -9,324,129
#4
Forman -8,877,372
1013959840 → 1417999236
Weight 472 · Forman -8,877,372
#5
Forman -8,475,607
1417095076 → 1740392539
Weight 472 · Forman -8,475,607
#6
Forman -8,428,386
1013959840 → 1649231317
Weight 247 · Forman -8,428,386
#7
Forman -7,723,012
1013959840 → 1518937671
Weight 195 · Forman -7,723,012
#8
Forman -7,528,292
1396908786 → 1972731115
Weight 372 · Forman -7,528,292
Strongest referral edges
#1
Weight 907
1245401348 → 1902841992
Weight 907 · Forman -91,818
#2
Weight 576
1740392539 → 1972615755
Weight 576 · Forman -5,813,084
#3
Weight 543
1740392539 → 1780636514
Weight 543 · Forman -5,590,174
#4
Weight 515
1194725788 → 1952309544
Weight 515 · Forman -35,914
#5
Weight 514
1417095076 → 1780636514
Weight 514 · Forman -5,337,141
#6
Weight 511
1760764682 → 1902841992
Weight 511 · Forman -63,739
#7
Weight 497
1609934553 → 1770572505
Weight 497 · Forman -84,817
#8
Weight 472
1417095076 → 1740392539
Weight 472 · Forman -8,475,607