Regency Hospital Of Greenville · Referral network
HSA 42024 · 2015 · 825 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
-1,934,174
Median F
-765,320
Min F
-41,479,633
Max F
384
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,099
Edges
37,940
Avg clustering
0.662
Density
0.0629
Forman μ
-146.3
Forman σ
147.3
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
460,980
Avg degree
19.39
Max degree
294
Negative F edges
7,969
Positive F edges
31
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 271 · weight 27,693
271
#2
NPI 1497731475
Degree 294 · weight 20,623
294
#3
NPI 1730127994
Degree 183 · weight 17,631
183
#4
NPI 1225110141
Degree 294 · weight 17,352
294
#5
NPI 1013973346
Degree 212 · weight 16,684
212
#6
NPI 1477714194
Degree 248 · weight 14,584
248
#7
NPI 1609080894
Degree 182 · weight 13,786
182
#8
NPI 1053362269
Degree 224 · weight 13,684
224
Most negative curvature
#1
Forman -41,479,633
1265490684 → 1598757171
Weight 1,117 · Forman -41,479,633
#2
Forman -40,700,404
1598757171 → 1730127994
Weight 703 · Forman -40,700,404
#3
Forman -39,642,448
1013094234 → 1598757171
Weight 1,049 · Forman -39,642,448
#4
Forman -36,655,700
1134111727 → 1598757171
Weight 939 · Forman -36,655,700
#5
Forman -36,132,678
1598757171 → 1972595536
Weight 900 · Forman -36,132,678
#6
Forman -35,332,073
1598757171 → 1831181486
Weight 898 · Forman -35,332,073
#7
Forman -34,191,507
1225110141 → 1497731475
Weight 347 · Forman -34,191,507
#8
Forman -33,799,817
1134168941 → 1598757171
Weight 826 · Forman -33,799,817
Strongest referral edges
#1
Weight 1,839
1013999879 → 1629050794
Weight 1,839 · Forman -7,941,338
#2
Weight 1,117
1265490684 → 1598757171
Weight 1,117 · Forman -41,479,633
#3
Weight 1,049
1013094234 → 1598757171
Weight 1,049 · Forman -39,642,448
#4
Weight 967
1538251368 → 1629050794
Weight 967 · Forman -2,518,763
#5
Weight 939
1134111727 → 1598757171
Weight 939 · Forman -36,655,700
#6
Weight 937
1013999879 → 1538251368
Weight 937 · Forman -5,566,735
#7
Weight 900
1598757171 → 1972595536
Weight 900 · Forman -36,132,678
#8
Weight 898
1598757171 → 1831181486
Weight 898 · Forman -35,332,073