Valley Hospital -Spokane · Referral network
HSA 50059 · 2015 · 957 physicians · 5456 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
-220,255
Median F
-107,722
Min F
-4,018,549
Max F
652
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,194
Edges
18,801
Avg clustering
0.573
Density
0.0264
Forman μ
-72.6
Forman σ
63.6
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
280,338
Avg degree
11.40
Max degree
110
Negative F edges
5,405
Positive F edges
51
Nonzero F edges
5,456
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 1457344517
Degree 110 · weight 7,861
110
#2
NPI 1922057454
Degree 110 · weight 7,422
110
#3
NPI 1508917261
Degree 90 · weight 6,617
90
#4
NPI 1194938522
Degree 98 · weight 6,287
98
#5
NPI 1538118062
Degree 74 · weight 5,846
74
#6
NPI 1255380788
Degree 67 · weight 5,845
67
#7
NPI 1760509897
Degree 78 · weight 5,035
78
#8
NPI 1487656930
Degree 82 · weight 4,972
82
Most negative curvature
#1
Forman -4,018,549
1194938522 → 1457344517
Weight 300 · Forman -4,018,549
#2
Forman -3,993,783
1457344517 → 1922057454
Weight 236 · Forman -3,993,783
#3
Forman -3,694,232
1457344517 → 1508917261
Weight 281 · Forman -3,694,232
#4
Forman -3,440,352
1457344517 → 1487656930
Weight 296 · Forman -3,440,352
#5
Forman -3,352,931
1508917261 → 1922057454
Weight 239 · Forman -3,352,931
#6
Forman -3,167,404
1457344517 → 1538118062
Weight 256 · Forman -3,167,404
#7
Forman -3,090,590
1255380788 → 1457344517
Weight 263 · Forman -3,090,590
#8
Forman -3,026,099
1467406975 → 1922057454
Weight 402 · Forman -3,026,099
Strongest referral edges
#1
Weight 720
1124071592 → 1851577522
Weight 720 · Forman -840,457
#2
Weight 696
1427208990 → 1932146552
Weight 696 · Forman -1,003,500
#3
Weight 665
1386733368 → 1881784395
Weight 665 · Forman -143,094
#4
Weight 652
1346394491 → 1386619294
Weight 652 · Forman -1,145,289
#5
Weight 629
1508075961 → 1528363835
Weight 629 · Forman -285,345
#6
Weight 581
1144220609 → 1396829412
Weight 581 · Forman -1,049,681
#7
Weight 575
1346346509 → 1861572737
Weight 575 · Forman -292,095
#8
Weight 519
1265403745 → 1386733368
Weight 519 · Forman -177,112