University Med Ctr-Brackenridge · Referral network
HSA 45016 · 2016 · 1450 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
-915,253
Median F
-177,852
Min F
-55,107,249
Max F
318
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,163
Edges
35,039
Avg clustering
0.519
Density
0.0150
Forman μ
-90.8
Forman σ
100.4
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
483,748
Avg degree
11.03
Max degree
297
Negative F edges
7,936
Positive F edges
64
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 297 · weight 40,096
297
#2
NPI 1871669564
Degree 93 · weight 11,659
93
#3
NPI 1275790149
Degree 80 · weight 9,680
80
#4
NPI 1043211444
Degree 75 · weight 9,273
75
#5
NPI 1851376008
Degree 112 · weight 8,347
112
#6
NPI 1548298391
Degree 101 · weight 7,967
101
#7
NPI 1770668758
Degree 96 · weight 7,391
96
#8
NPI 1023019569
Degree 65 · weight 7,039
65
Most negative curvature
#1
Forman -55,107,249
1134179567 → 1982668927
Weight 1,059 · Forman -55,107,249
#2
Forman -54,013,458
1902096555 → 1982668927
Weight 1,016 · Forman -54,013,458
#3
Forman -48,045,924
1558337006 → 1982668927
Weight 827 · Forman -48,045,924
#4
Forman -47,698,601
1598873143 → 1982668927
Weight 819 · Forman -47,698,601
#5
Forman -47,399,466
1093779555 → 1982668927
Weight 788 · Forman -47,399,466
#6
Forman -47,083,185
1558596320 → 1982668927
Weight 778 · Forman -47,083,185
#7
Forman -46,628,593
1720053085 → 1982668927
Weight 777 · Forman -46,628,593
#8
Forman -45,816,291
1760451199 → 1982668927
Weight 755 · Forman -45,816,291
Strongest referral edges
#1
Weight 1,764
1275790149 → 1740240829
Weight 1,764 · Forman -5,071,309
#2
Weight 1,059
1134179567 → 1982668927
Weight 1,059 · Forman -55,107,249
#3
Weight 1,016
1902096555 → 1982668927
Weight 1,016 · Forman -54,013,458
#4
Weight 1,003
1063406692 → 1962592071
Weight 1,003 · Forman -1,596,866
#5
Weight 956
1437213337 → 1518968411
Weight 956 · Forman -759,518
#6
Weight 859
1194713933 → 1265696538
Weight 859 · Forman -242,659
#7
Weight 841
1316169170 → 1992708820
Weight 841 · Forman -59,422
#8
Weight 827
1558337006 → 1982668927
Weight 827 · Forman -48,045,924