West Houston Medical Center · Referral network
HSA 45131 · 2017 · 2721 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
-2,482,169
Median F
-234,739
Min F
-81,474,217
Max F
386
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
7,053
Edges
136,354
Avg clustering
0.579
Density
0.0055
Forman μ
-164.9
Forman σ
250.7
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
482,870
Avg degree
5.88
Max degree
427
Negative F edges
7,920
Positive F edges
80
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 381 · weight 41,507
381
#2
NPI 1619068012
Degree 427 · weight 28,408
427
#3
NPI 1538195466
Degree 283 · weight 23,968
283
#4
NPI 1144227752
Degree 223 · weight 17,148
223
#5
NPI 1972766327
Degree 178 · weight 16,036
178
#6
NPI 1477543122
Degree 164 · weight 12,210
164
#7
NPI 1457555021
Degree 123 · weight 10,729
123
#8
NPI 1720254915
Degree 154 · weight 10,295
154
Most negative curvature
#1
Forman -81,474,217
1356532261 → 1518928472
Weight 1,412 · Forman -81,474,217
#2
Forman -71,404,893
1164499240 → 1518928472
Weight 1,081 · Forman -71,404,893
#3
Forman -64,776,530
1518928472 → 1538195466
Weight 430 · Forman -64,776,530
#4
Forman -63,191,623
1518928472 → 1861541922
Weight 879 · Forman -63,191,623
#5
Forman -62,679,015
1518928472 → 1871538165
Weight 863 · Forman -62,679,015
#6
Forman -60,557,440
1619068012 → 1669540142
Weight 970 · Forman -60,557,440
#7
Forman -58,690,127
1023387339 → 1518928472
Weight 758 · Forman -58,690,127
#8
Forman -58,523,765
1518928472 → 1659412336
Weight 759 · Forman -58,523,765
Strongest referral edges
#1
Weight 1,412
1356532261 → 1518928472
Weight 1,412 · Forman -81,474,217
#2
Weight 1,081
1164499240 → 1518928472
Weight 1,081 · Forman -71,404,893
#3
Weight 1,035
1356532261 → 1538195466
Weight 1,035 · Forman -34,646,886
#4
Weight 970
1619068012 → 1669540142
Weight 970 · Forman -60,557,440
#5
Weight 879
1518928472 → 1861541922
Weight 879 · Forman -63,191,623
#6
Weight 867
1164499240 → 1538195466
Weight 867 · Forman -31,821,457
#7
Weight 863
1518928472 → 1871538165
Weight 863 · Forman -62,679,015
#8
Weight 826
1144227752 → 1932170149
Weight 826 · Forman -16,259,854