Spectrum Hlth - Butterworth Hosp · Referral network
HSA 23039 · 2014 · 1005 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
-2,068,550
Median F
-444,923
Min F
-40,983,951
Max F
310
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,825
Edges
36,672
Avg clustering
0.616
Density
0.0220
Forman μ
-146.5
Forman σ
180.8
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
355,903
Avg degree
15.92
Max degree
326
Negative F edges
7,940
Positive F edges
60
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 1447264999
Degree 326 · weight 20,135
326
#2
NPI 1831106749
Degree 323 · weight 19,799
323
#3
NPI 1699791350
Degree 302 · weight 18,722
302
#4
NPI 1265480263
Degree 311 · weight 18,568
311
#5
NPI 1730196700
Degree 299 · weight 17,658
299
#6
NPI 1053534735
Degree 282 · weight 17,339
282
#7
NPI 1174540025
Degree 273 · weight 14,934
273
#8
NPI 1407935323
Degree 230 · weight 12,006
230
Most negative curvature
#1
Forman -40,983,951
1447264999 → 1831106749
Weight 399 · Forman -40,983,951
#2
Forman -40,089,646
1265480263 → 1447264999
Weight 414 · Forman -40,089,646
#3
Forman -39,966,003
1699791350 → 1831106749
Weight 439 · Forman -39,966,003
#4
Forman -39,120,955
1265480263 → 1699791350
Weight 459 · Forman -39,120,955
#5
Forman -38,507,825
1265480263 → 1831106749
Weight 392 · Forman -38,507,825
#6
Forman -37,868,578
1447264999 → 1699791350
Weight 384 · Forman -37,868,578
#7
Forman -37,269,234
1447264999 → 1730196700
Weight 390 · Forman -37,269,234
#8
Forman -37,099,694
1730196700 → 1831106749
Weight 397 · Forman -37,099,694
Strongest referral edges
#1
Weight 735
1093981607 → 1396853966
Weight 735 · Forman -112,376
#2
Weight 592
1699707380 → 1912948233
Weight 592 · Forman -70,332
#3
Weight 547
1790736643 → 1922020478
Weight 547 · Forman -140,922
#4
Weight 498
1790736643 → 1811961907
Weight 498 · Forman -144,377
#5
Weight 472
1093981607 → 1407941396
Weight 472 · Forman -80,827
#6
Weight 459
1265480263 → 1699791350
Weight 459 · Forman -39,120,955
#7
Weight 441
1053534735 → 1699791350
Weight 441 · Forman -34,971,556
#8
Weight 439
1699791350 → 1831106749
Weight 439 · Forman -39,966,003