West Houston Medical Center · Referral network
HSA 45131 · 2015 · 2672 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
-2,278,678
Median F
-263,707
Min F
-77,603,365
Max F
335.4
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
6,341
Edges
117,403
Avg clustering
0.567
Density
0.0058
Forman μ
-149.4
Forman σ
215.7
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
506,683
Avg degree
5.99
Max degree
366
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 1114966470
Degree 336 · weight 36,788
336
#2
NPI 1518928472
Degree 314 · weight 30,441
314
#3
NPI 1619068012
Degree 366 · weight 24,065
366
#4
NPI 1356532261
Degree 155 · weight 21,141
155
#5
NPI 1508968850
Degree 141 · weight 17,969
141
#6
NPI 1972766327
Degree 186 · weight 16,047
186
#7
NPI 1538195466
Degree 194 · weight 15,619
194
#8
NPI 1144227752
Degree 195 · weight 15,577
195
Most negative curvature
#1
Forman -77,603,365
1114966470 → 1356532261
Weight 1,384 · Forman -77,603,365
#2
Forman -77,396,182
1114966470 → 1518928472
Weight 667 · Forman -77,396,182
#3
Forman -62,956,807
1356532261 → 1518928472
Weight 1,247 · Forman -62,956,807
#4
Forman -60,170,585
1114966470 → 1164499240
Weight 1,223 · Forman -60,170,585
#5
Forman -58,329,917
1114966470 → 1851551238
Weight 1,199 · Forman -58,329,917
#6
Forman -54,489,222
1114966470 → 1659412336
Weight 1,053 · Forman -54,489,222
#7
Forman -46,504,188
1114966470 → 1356382816
Weight 773 · Forman -46,504,188
#8
Forman -45,076,258
1114966470 → 1538195466
Weight 458 · Forman -45,076,258
Strongest referral edges
#1
Weight 1,384
1114966470 → 1356532261
Weight 1,384 · Forman -77,603,365
#2
Weight 1,247
1356532261 → 1518928472
Weight 1,247 · Forman -62,956,807
#3
Weight 1,223
1114966470 → 1164499240
Weight 1,223 · Forman -60,170,585
#4
Weight 1,199
1114966470 → 1851551238
Weight 1,199 · Forman -58,329,917
#5
Weight 1,053
1114966470 → 1659412336
Weight 1,053 · Forman -54,489,222
#6
Weight 1,017
1124063631 → 1356532261
Weight 1,017 · Forman -14,313,902
#7
Weight 991
1487762209 → 1508968850
Weight 991 · Forman -11,001,142
#8
Weight 960
1164499240 → 1518928472
Weight 960 · Forman -43,912,991