University Med Ctr-Brackenridge · Referral network
HSA 45016 · 2015 · 1414 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
-830,790
Median F
-166,049
Min F
-44,019,475
Max F
382
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,094
Edges
32,073
Avg clustering
0.510
Density
0.0146
Forman μ
-81.1
Forman σ
92.8
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
480,110
Avg degree
11.32
Max degree
269
Negative F edges
7,935
Positive F edges
65
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 1982668927
Degree 269 · weight 39,710
269
#2
NPI 1023019924
Degree 159 · weight 14,559
159
#3
NPI 1851376008
Degree 107 · weight 9,773
107
#4
NPI 1871669564
Degree 75 · weight 9,388
75
#5
NPI 1790749711
Degree 119 · weight 8,876
119
#6
NPI 1760413629
Degree 140 · weight 7,606
140
#7
NPI 1770668758
Degree 95 · weight 7,309
95
#8
NPI 1023019569
Degree 69 · weight 6,933
69
Most negative curvature
#1
Forman -44,019,475
1134179567 → 1982668927
Weight 864 · Forman -44,019,475
#2
Forman -43,756,634
1093779555 → 1982668927
Weight 848 · Forman -43,756,634
#3
Forman -42,607,378
1902096555 → 1982668927
Weight 826 · Forman -42,607,378
#4
Forman -42,055,277
1720053085 → 1982668927
Weight 812 · Forman -42,055,277
#5
Forman -41,655,939
1558337006 → 1982668927
Weight 803 · Forman -41,655,939
#6
Forman -41,047,286
1780659797 → 1982668927
Weight 777 · Forman -41,047,286
#7
Forman -40,658,946
1558596320 → 1982668927
Weight 731 · Forman -40,658,946
#8
Forman -40,479,339
1598873143 → 1982668927
Weight 765 · Forman -40,479,339
Strongest referral edges
#1
Weight 1,242
1437213337 → 1518968411
Weight 1,242 · Forman -912,622
#2
Weight 997
1275790149 → 1740240829
Weight 997 · Forman -1,837,197
#3
Weight 964
1073574497 → 1972553303
Weight 964 · Forman -973,091
#4
Weight 946
1760643498 → 1851381818
Weight 946 · Forman -30,349
#5
Weight 934
1023019924 → 1851376008
Weight 934 · Forman -14,928,287
#6
Weight 931
1194713933 → 1265696538
Weight 931 · Forman -300,471
#7
Weight 894
1851392724 → 1861406480
Weight 894 · Forman -521,514
#8
Weight 864
1134179567 → 1982668927
Weight 864 · Forman -44,019,475