Valley Hospital -Spokane · Referral network
HSA 50059 · 2014 · 910 physicians · 5493 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
-175,830
Median F
-112,816
Min F
-3,106,474
Max F
716
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,124
Edges
17,905
Avg clustering
0.562
Density
0.0284
Forman μ
-69.3
Forman σ
58.4
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
281,268
Avg degree
12.07
Max degree
93
Negative F edges
5,438
Positive F edges
55
Nonzero F edges
5,493
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 1487656930
Degree 83 · weight 6,591
83
#2
NPI 1457344517
Degree 93 · weight 6,533
93
#3
NPI 1275526360
Degree 78 · weight 5,481
78
#4
NPI 1255380788
Degree 55 · weight 5,402
55
#5
NPI 1760509897
Degree 73 · weight 4,677
73
#6
NPI 1194938522
Degree 67 · weight 4,480
67
#7
NPI 1649269499
Degree 52 · weight 4,271
52
#8
NPI 1538118062
Degree 52 · weight 4,205
52
Most negative curvature
#1
Forman -3,106,474
1457344517 → 1487656930
Weight 347 · Forman -3,106,474
#2
Forman -2,525,091
1275526360 → 1457344517
Weight 281 · Forman -2,525,091
#3
Forman -2,163,575
1275526360 → 1487656930
Weight 246 · Forman -2,163,575
#4
Forman -1,998,731
1194938522 → 1457344517
Weight 216 · Forman -1,998,731
#5
Forman -1,956,820
1255380788 → 1487656930
Weight 279 · Forman -1,956,820
#6
Forman -1,929,034
1194938522 → 1487656930
Weight 244 · Forman -1,929,034
#7
Forman -1,921,719
1255380788 → 1457344517
Weight 220 · Forman -1,921,719
#8
Forman -1,808,572
1326040130 → 1457344517
Weight 319 · Forman -1,808,572
Strongest referral edges
#1
Weight 767
1104815935 → 1649269499
Weight 767 · Forman -1,044,558
#2
Weight 740
1386733368 → 1881784395
Weight 740 · Forman -267,829
#3
Weight 590
1427208990 → 1932146552
Weight 590 · Forman -458,571
#4
Weight 589
1124071592 → 1851577522
Weight 589 · Forman -448,990
#5
Weight 579
1881784395 → 1932298080
Weight 579 · Forman -203,964
#6
Weight 573
1184699365 → 1386619294
Weight 573 · Forman -824,948
#7
Weight 558
1649269499 → 1922097799
Weight 558 · Forman -874,899
#8
Weight 549
1144220609 → 1396829412
Weight 549 · Forman -913,683