West Houston Medical Center · Referral network
HSA 45131 · 2016 · 2651 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
-2,062,388
Median F
-224,204
Min F
-83,625,582
Max F
338
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
6,772
Edges
126,179
Avg clustering
0.577
Density
0.0055
Forman μ
-157.3
Forman σ
229.3
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
503,030
Avg degree
6.04
Max degree
375
Negative F edges
7,914
Positive F edges
86
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 1518928472
Degree 375 · weight 39,768
375
#2
NPI 1114966470
Degree 230 · weight 26,844
230
#3
NPI 1538195466
Degree 268 · weight 22,703
268
#4
NPI 1144227752
Degree 247 · weight 22,388
247
#5
NPI 1972766327
Degree 181 · weight 16,157
181
#6
NPI 1508968850
Degree 119 · weight 14,781
119
#7
NPI 1780613257
Degree 187 · weight 14,110
187
#8
NPI 1619068012
Degree 227 · weight 13,237
227
Most negative curvature
#1
Forman -83,625,582
1114966470 → 1518928472
Weight 875 · Forman -83,625,582
#2
Forman -78,720,292
1356532261 → 1518928472
Weight 1,434 · Forman -78,720,292
#3
Forman -67,287,559
1164499240 → 1518928472
Weight 1,056 · Forman -67,287,559
#4
Forman -65,276,378
1518928472 → 1659412336
Weight 1,025 · Forman -65,276,378
#5
Forman -65,050,515
1518928472 → 1871538165
Weight 1,015 · Forman -65,050,515
#6
Forman -62,655,851
1518928472 → 1538195466
Weight 458 · Forman -62,655,851
#7
Forman -60,418,532
1518928472 → 1922038298
Weight 877 · Forman -60,418,532
#8
Forman -56,732,178
1518928472 → 1851551238
Weight 774 · Forman -56,732,178
Strongest referral edges
#1
Weight 1,719
1114966470 → 1356532261
Weight 1,719 · Forman -36,335,586
#2
Weight 1,434
1356532261 → 1518928472
Weight 1,434 · Forman -78,720,292
#3
Weight 1,357
1114966470 → 1164499240
Weight 1,357 · Forman -31,990,266
#4
Weight 1,056
1164499240 → 1518928472
Weight 1,056 · Forman -67,287,559
#5
Weight 1,025
1518928472 → 1659412336
Weight 1,025 · Forman -65,276,378
#6
Weight 1,015
1518928472 → 1871538165
Weight 1,015 · Forman -65,050,515
#7
Weight 1,005
1356532261 → 1538195466
Weight 1,005 · Forman -31,006,724
#8
Weight 947
1114966470 → 1356382816
Weight 947 · Forman -25,801,961