Spectrum Hlth - Butterworth Hosp · Referral network
HSA 23039 · 2015 · 1307 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
-1,412,552
Median F
-397,359
Min F
-42,557,957
Max F
306
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,921
Edges
37,842
Avg clustering
0.625
Density
0.0205
Forman μ
-155.8
Forman σ
187.5
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
373,652
Avg degree
12.24
Max degree
331
Negative F edges
7,919
Positive F edges
81
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 1053534735
Degree 331 · weight 19,379
331
#2
NPI 1699791350
Degree 309 · weight 18,269
309
#3
NPI 1407935323
Degree 271 · weight 15,917
271
#4
NPI 1447264999
Degree 264 · weight 14,217
264
#5
NPI 1487645875
Degree 240 · weight 12,715
240
#6
NPI 1326087057
Degree 163 · weight 9,711
163
#7
NPI 1326023383
Degree 194 · weight 9,553
194
#8
NPI 1558488874
Degree 176 · weight 9,070
176
Most negative curvature
#1
Forman -42,557,957
1053534735 → 1699791350
Weight 467 · Forman -42,557,957
#2
Forman -33,315,679
1053534735 → 1407935323
Weight 360 · Forman -33,315,679
#3
Forman -29,470,928
1053534735 → 1447264999
Weight 305 · Forman -29,470,928
#4
Forman -28,140,867
1407935323 → 1699791350
Weight 302 · Forman -28,140,867
#5
Forman -26,324,187
1447264999 → 1699791350
Weight 288 · Forman -26,324,187
#6
Forman -25,256,301
1407935323 → 1447264999
Weight 356 · Forman -25,256,301
#7
Forman -25,144,123
1053534735 → 1265480263
Weight 442 · Forman -25,144,123
#8
Forman -23,779,270
1053534735 → 1730196700
Weight 390 · Forman -23,779,270
Strongest referral edges
#1
Weight 699
1740595735 → 1922020478
Weight 699 · Forman -369,248
#2
Weight 689
1740595735 → 1811961907
Weight 689 · Forman -385,968
#3
Weight 644
1699707380 → 1912948233
Weight 644 · Forman -82,739
#4
Weight 628
1740595735 → 1790736643
Weight 628 · Forman -334,666
#5
Weight 604
1134103732 → 1255312302
Weight 604 · Forman -3,727,787
#6
Weight 511
1245221621 → 1255312302
Weight 511 · Forman -2,193,504
#7
Weight 500
1760446298 → 1992760805
Weight 500 · Forman -7,640
#8
Weight 490
1134103732 → 1245221621
Weight 490 · Forman -2,234,043