West Houston Medical Center · Referral network
HSA 45131 · 2014 · 2671 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
-2,574,146
Median F
-268,090
Min F
-120,008,449
Max F
328
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
6,159
Edges
122,531
Avg clustering
0.576
Density
0.0065
Forman μ
-146
Forman σ
190.4
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
525,909
Avg degree
5.99
Max degree
365
Negative F edges
7,938
Positive F edges
62
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 351 · weight 42,843
351
#2
NPI 1518928472
Degree 365 · weight 42,309
365
#3
NPI 1619068012
Degree 296 · weight 18,864
296
#4
NPI 1972766327
Degree 193 · weight 18,251
193
#5
NPI 1477543122
Degree 180 · weight 16,693
180
#6
NPI 1508968850
Degree 127 · weight 16,276
127
#7
NPI 1538195466
Degree 193 · weight 14,664
193
#8
NPI 1780613257
Degree 153 · weight 11,753
153
Most negative curvature
#1
Forman -120,008,449
1114966470 → 1518928472
Weight 901 · Forman -120,008,449
#2
Forman -85,341,247
1356532261 → 1518928472
Weight 1,657 · Forman -85,341,247
#3
Forman -83,401,089
1114966470 → 1356532261
Weight 1,728 · Forman -83,401,089
#4
Forman -68,299,064
1164499240 → 1518928472
Weight 1,071 · Forman -68,299,064
#5
Forman -67,450,245
1114966470 → 1164499240
Weight 1,141 · Forman -67,450,245
#6
Forman -67,350,158
1114966470 → 1659412336
Weight 1,162 · Forman -67,350,158
#7
Forman -66,589,894
1518928472 → 1659412336
Weight 1,039 · Forman -66,589,894
#8
Forman -60,157,016
1518928472 → 1871538165
Weight 853 · Forman -60,157,016
Strongest referral edges
#1
Weight 1,766
1144424748 → 1295798874
Weight 1,766 · Forman -1,132,221
#2
Weight 1,728
1114966470 → 1356532261
Weight 1,728 · Forman -83,401,089
#3
Weight 1,657
1356532261 → 1518928472
Weight 1,657 · Forman -85,341,247
#4
Weight 1,162
1114966470 → 1659412336
Weight 1,162 · Forman -67,350,158
#5
Weight 1,141
1114966470 → 1164499240
Weight 1,141 · Forman -67,450,245
#6
Weight 1,071
1164499240 → 1518928472
Weight 1,071 · Forman -68,299,064
#7
Weight 1,039
1518928472 → 1659412336
Weight 1,039 · Forman -66,589,894
#8
Weight 934
1508968850 → 1790715035
Weight 934 · Forman -8,711,010