Regency Hospital Of Greenville · Referral network
HSA 42024 · 2017 · 996 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
-3,883,567
Median F
-829,123
Min F
-133,271,795
Max F
324
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,283
Edges
37,870
Avg clustering
0.650
Density
0.0460
Forman μ
-168.1
Forman σ
174.1
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
495,855
Avg degree
16.06
Max degree
495
Negative F edges
7,960
Positive F edges
40
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 1972595536
Degree 310 · weight 38,710
310
#2
NPI 1811097108
Degree 495 · weight 35,728
495
#3
NPI 1730127994
Degree 251 · weight 29,016
251
#4
NPI 1053362269
Degree 379 · weight 24,863
379
#5
NPI 1134111727
Degree 196 · weight 22,300
196
#6
NPI 1598865891
Degree 292 · weight 19,571
292
#7
NPI 1134168941
Degree 188 · weight 19,059
188
#8
NPI 1225110141
Degree 196 · weight 16,555
196
Most negative curvature
#1
Forman -133,271,795
1053362269 → 1811097108
Weight 951 · Forman -133,271,795
#2
Forman -118,065,241
1598865891 → 1811097108
Weight 1,005 · Forman -118,065,241
#3
Forman -113,746,092
1225110141 → 1811097108
Weight 1,212 · Forman -113,746,092
#4
Forman -97,018,680
1730127994 → 1972595536
Weight 1,330 · Forman -97,018,680
#5
Forman -88,358,899
1760667737 → 1811097108
Weight 863 · Forman -88,358,899
#6
Forman -80,332,849
1134111727 → 1972595536
Weight 1,258 · Forman -80,332,849
#7
Forman -69,513,488
1134168941 → 1972595536
Weight 1,028 · Forman -69,513,488
#8
Forman -69,479,444
1053362269 → 1598865891
Weight 775 · Forman -69,479,444
Strongest referral edges
#1
Weight 1,432
1265490684 → 1972595536
Weight 1,432 · Forman -67,336,201
#2
Weight 1,330
1730127994 → 1972595536
Weight 1,330 · Forman -97,018,680
#3
Weight 1,258
1134111727 → 1972595536
Weight 1,258 · Forman -80,332,849
#4
Weight 1,212
1225110141 → 1811097108
Weight 1,212 · Forman -113,746,092
#5
Weight 1,193
1265490684 → 1730127994
Weight 1,193 · Forman -40,185,743
#6
Weight 1,094
1134111727 → 1730127994
Weight 1,094 · Forman -54,541,920
#7
Weight 1,089
1831181486 → 1972595536
Weight 1,089 · Forman -56,985,921
#8
Weight 1,086
1013094234 → 1972595536
Weight 1,086 · Forman -58,392,562