University Med Ctr-Brackenridge · Referral network
HSA 45016 · 2017 · 1517 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
-1,487,444
Median F
-181,393
Min F
-62,853,584
Max F
642
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,330
Edges
38,326
Avg clustering
0.525
Density
0.0141
Forman μ
-104.3
Forman σ
121.5
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
508,304
Avg degree
10.55
Max degree
326
Negative F edges
7,931
Positive F edges
69
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 307 · weight 39,519
307
#2
NPI 1306886387
Degree 326 · weight 32,960
326
#3
NPI 1871669564
Degree 81 · weight 11,391
81
#4
NPI 1275790149
Degree 84 · weight 11,379
84
#5
NPI 1851376008
Degree 124 · weight 11,031
124
#6
NPI 1043211444
Degree 69 · weight 9,068
69
#7
NPI 1386703064
Degree 90 · weight 8,108
90
#8
NPI 1770668758
Degree 92 · weight 7,959
92
Most negative curvature
#1
Forman -62,853,584
1306886387 → 1427059310
Weight 1,486 · Forman -62,853,584
#2
Forman -56,160,605
1902096555 → 1982668927
Weight 1,040 · Forman -56,160,605
#3
Forman -55,772,320
1134179567 → 1982668927
Weight 1,022 · Forman -55,772,320
#4
Forman -55,382,139
1134104847 → 1306886387
Weight 1,223 · Forman -55,382,139
#5
Forman -52,745,039
1114974011 → 1306886387
Weight 1,031 · Forman -52,745,039
#6
Forman -50,137,563
1760451199 → 1982668927
Weight 854 · Forman -50,137,563
#7
Forman -48,748,433
1306886387 → 1548245798
Weight 961 · Forman -48,748,433
#8
Forman -48,586,524
1558337006 → 1982668927
Weight 800 · Forman -48,586,524
Strongest referral edges
#1
Weight 1,486
1306886387 → 1427059310
Weight 1,486 · Forman -62,853,584
#2
Weight 1,477
1275790149 → 1740240829
Weight 1,477 · Forman -5,227,354
#3
Weight 1,223
1134104847 → 1306886387
Weight 1,223 · Forman -55,382,139
#4
Weight 1,040
1902096555 → 1982668927
Weight 1,040 · Forman -56,160,605
#5
Weight 1,031
1114974011 → 1306886387
Weight 1,031 · Forman -52,745,039
#6
Weight 1,022
1134179567 → 1982668927
Weight 1,022 · Forman -55,772,320
#7
Weight 994
1194713933 → 1265696538
Weight 994 · Forman -308,756
#8
Weight 977
1437213337 → 1518968411
Weight 977 · Forman -678,087