Swedish Medical Center · Referral network
HSA 6016 · 2015 · 1551 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
-554,804
Median F
-123,173
Min F
-22,715,316
Max F
872
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,350
Edges
25,957
Avg clustering
0.550
Density
0.0094
Forman μ
-68.9
Forman σ
86
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
433,469
Avg degree
10.32
Max degree
192
Negative F edges
7,867
Positive F edges
133
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 1134135346
Degree 192 · weight 18,654
192
#2
NPI 1922281534
Degree 154 · weight 15,552
154
#3
NPI 1336231273
Degree 138 · weight 12,632
138
#4
NPI 1437165784
Degree 133 · weight 10,984
133
#5
NPI 1114944030
Degree 153 · weight 10,726
153
#6
NPI 1982600870
Degree 97 · weight 10,550
97
#7
NPI 1396764676
Degree 133 · weight 9,603
133
#8
NPI 1871581983
Degree 136 · weight 9,470
136
Most negative curvature
#1
Forman -22,715,316
1134135346 → 1336231273
Weight 772 · Forman -22,715,316
#2
Forman -19,828,050
1134135346 → 1437165784
Weight 656 · Forman -19,828,050
#3
Forman -17,704,476
1114944030 → 1134135346
Weight 482 · Forman -17,704,476
#4
Forman -16,198,344
1134135346 → 1396764676
Weight 469 · Forman -16,198,344
#5
Forman -16,035,449
1134135346 → 1194731455
Weight 611 · Forman -16,035,449
#6
Forman -15,898,580
1134135346 → 1316951759
Weight 671 · Forman -15,898,580
#7
Forman -15,231,631
1922281534 → 1982600870
Weight 1,021 · Forman -15,231,631
#8
Forman -15,104,854
1134135346 → 1871581983
Weight 410 · Forman -15,104,854
Strongest referral edges
#1
Weight 1,021
1922281534 → 1982600870
Weight 1,021 · Forman -15,231,631
#2
Weight 772
1134135346 → 1336231273
Weight 772 · Forman -22,715,316
#3
Weight 674
1316951759 → 1336231273
Weight 674 · Forman -9,394,798
#4
Weight 671
1134135346 → 1316951759
Weight 671 · Forman -15,898,580
#5
Weight 656
1134135346 → 1437165784
Weight 656 · Forman -19,828,050
#6
Weight 620
1720128820 → 1881655314
Weight 620 · Forman -206,920
#7
Weight 611
1134135346 → 1194731455
Weight 611 · Forman -16,035,449
#8
Weight 592
1184725947 → 1609984707
Weight 592 · Forman -176,301