Regency Hospital Of Greenville · Referral network
HSA 42024 · 2014 · 750 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
-1,883,435
Median F
-704,685
Min F
-65,049,713
Max F
348
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,029
Edges
39,227
Avg clustering
0.652
Density
0.0742
Forman μ
-132.3
Forman σ
136.1
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
480,605
Avg degree
21.33
Max degree
315
Negative F edges
7,977
Positive F edges
23
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 1598757171
Degree 315 · weight 35,506
315
#2
NPI 1730127994
Degree 198 · weight 20,967
198
#3
NPI 1013973346
Degree 225 · weight 19,867
225
#4
NPI 1497731475
Degree 227 · weight 18,009
227
#5
NPI 1609080894
Degree 143 · weight 13,219
143
#6
NPI 1538142807
Degree 171 · weight 12,759
171
#7
NPI 1982636312
Degree 164 · weight 12,030
164
#8
NPI 1477714194
Degree 203 · weight 11,935
203
Most negative curvature
#1
Forman -65,049,713
1598757171 → 1730127994
Weight 866 · Forman -65,049,713
#2
Forman -62,219,358
1265490684 → 1598757171
Weight 1,260 · Forman -62,219,358
#3
Forman -56,234,248
1013094234 → 1598757171
Weight 1,081 · Forman -56,234,248
#4
Forman -53,653,972
1134168941 → 1598757171
Weight 1,014 · Forman -53,653,972
#5
Forman -53,195,918
1134111727 → 1598757171
Weight 988 · Forman -53,195,918
#6
Forman -52,891,990
1598757171 → 1972595536
Weight 990 · Forman -52,891,990
#7
Forman -50,610,454
1598757171 → 1831181486
Weight 924 · Forman -50,610,454
#8
Forman -49,394,256
1578555173 → 1598757171
Weight 866 · Forman -49,394,256
Strongest referral edges
#1
Weight 1,871
1013999879 → 1629050794
Weight 1,871 · Forman -9,073,286
#2
Weight 1,260
1265490684 → 1598757171
Weight 1,260 · Forman -62,219,358
#3
Weight 1,081
1013094234 → 1598757171
Weight 1,081 · Forman -56,234,248
#4
Weight 1,014
1134168941 → 1598757171
Weight 1,014 · Forman -53,653,972
#5
Weight 990
1598757171 → 1972595536
Weight 990 · Forman -52,891,990
#6
Weight 988
1134111727 → 1598757171
Weight 988 · Forman -53,195,918
#7
Weight 965
1013973346 → 1164408225
Weight 965 · Forman -26,084,936
#8
Weight 924
1598757171 → 1831181486
Weight 924 · Forman -50,610,454