St. Luke's Hosp-Chesterfield · Referral network
HSA 26082 · 2014 · 2264 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
-1,731,883
Median F
-199,876
Min F
-63,439,812
Max F
200.3
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
4,051
Edges
105,055
Avg clustering
0.641
Density
0.0128
Forman μ
-156.1
Forman σ
214.5
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
508,282
Avg degree
7.07
Max degree
415
Negative F edges
7,964
Positive F edges
36
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 1851318372
Degree 415 · weight 32,772
415
#2
NPI 1942209036
Degree 194 · weight 22,649
194
#3
NPI 1639162530
Degree 185 · weight 20,545
185
#4
NPI 1033118039
Degree 200 · weight 18,336
200
#5
NPI 1679590111
Degree 224 · weight 17,817
224
#6
NPI 1154327039
Degree 173 · weight 17,031
173
#7
NPI 1124164066
Degree 162 · weight 15,099
162
#8
NPI 1811980717
Degree 149 · weight 14,297
149
Most negative curvature
#1
Forman -63,439,812
1366469876 → 1851318372
Weight 892 · Forman -63,439,812
#2
Forman -61,447,202
1679590111 → 1851318372
Weight 525 · Forman -61,447,202
#3
Forman -55,712,378
1073530580 → 1851318372
Weight 704 · Forman -55,712,378
#4
Forman -55,270,961
1033135264 → 1851318372
Weight 685 · Forman -55,270,961
#5
Forman -54,273,165
1407936826 → 1851318372
Weight 665 · Forman -54,273,165
#6
Forman -54,151,327
1538187083 → 1851318372
Weight 663 · Forman -54,151,327
#7
Forman -50,949,828
1649298118 → 1851318372
Weight 589 · Forman -50,949,828
#8
Forman -48,166,624
1730105966 → 1851318372
Weight 528 · Forman -48,166,624
Strongest referral edges
#1
Weight 1,496
1932311974 → 1942209036
Weight 1,496 · Forman -24,047,610
#2
Weight 1,234
1497710651 → 1538123310
Weight 1,234 · Forman -1,233,825
#3
Weight 1,231
1588863906 → 1942209036
Weight 1,231 · Forman -21,774,268
#4
Weight 1,225
1639162530 → 1720071244
Weight 1,225 · Forman -19,788,648
#5
Weight 1,067
1225037252 → 1609875699
Weight 1,067 · Forman -3,007,107
#6
Weight 1,049
1336149111 → 1831182807
Weight 1,049 · Forman -7,734,399
#7
Weight 1,017
1336100650 → 1609875699
Weight 1,017 · Forman -2,941,761
#8
Weight 1,010
1154327039 → 1720071244
Weight 1,010 · Forman -15,124,663