Regency Hospital Of Greenville · Referral network
HSA 42024 · 2016 · 912 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
-2,889,972
Median F
-731,970
Min F
-91,767,194
Max F
456
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,172
Edges
37,216
Avg clustering
0.661
Density
0.0542
Forman μ
-154.1
Forman σ
156.8
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
480,889
Avg degree
17.54
Max degree
432
Negative F edges
7,967
Positive F edges
33
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 1730127994
Degree 266 · weight 32,444
266
#2
NPI 1225110141
Degree 432 · weight 28,838
432
#3
NPI 1598757171
Degree 261 · weight 28,152
261
#4
NPI 1053362269
Degree 364 · weight 23,377
364
#5
NPI 1497731475
Degree 286 · weight 17,862
286
#6
NPI 1386871093
Degree 153 · weight 14,684
153
#7
NPI 1982636312
Degree 177 · weight 13,944
177
#8
NPI 1265490684
Degree 112 · weight 13,383
112
Most negative curvature
#1
Forman -91,767,194
1053362269 → 1225110141
Weight 742 · Forman -91,767,194
#2
Forman -70,019,707
1598757171 → 1730127994
Weight 1,001 · Forman -70,019,707
#3
Forman -60,528,437
1225110141 → 1497731475
Weight 462 · Forman -60,528,437
#4
Forman -58,513,819
1225110141 → 1598865891
Weight 625 · Forman -58,513,819
#5
Forman -57,473,170
1225110141 → 1811097108
Weight 759 · Forman -57,473,170
#6
Forman -51,788,101
1164408225 → 1225110141
Weight 603 · Forman -51,788,101
#7
Forman -47,913,680
1265490684 → 1730127994
Weight 1,224 · Forman -47,913,680
#8
Forman -47,623,003
1225110141 → 1760667737
Weight 529 · Forman -47,623,003
Strongest referral edges
#1
Weight 1,314
1013999879 → 1629050794
Weight 1,314 · Forman -2,461,654
#2
Weight 1,224
1265490684 → 1730127994
Weight 1,224 · Forman -47,913,680
#3
Weight 1,088
1134111727 → 1730127994
Weight 1,088 · Forman -44,421,439
#4
Weight 1,001
1598757171 → 1730127994
Weight 1,001 · Forman -70,019,707
#5
Weight 997
1134111727 → 1598757171
Weight 997 · Forman -38,478,839
#6
Weight 987
1265490684 → 1598757171
Weight 987 · Forman -38,996,101
#7
Weight 948
1730127994 → 1972595536
Weight 948 · Forman -40,695,337
#8
Weight 887
1013094234 → 1598757171
Weight 887 · Forman -35,093,364