University Med Ctr-Brackenridge · Referral network
HSA 45016 · 2014 · 1344 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
-1,002,368
Median F
-193,705
Min F
-58,098,699
Max F
314
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,996
Edges
32,342
Avg clustering
0.509
Density
0.0162
Forman μ
-80.1
Forman σ
94.8
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
490,016
Avg degree
11.90
Max degree
304
Negative F edges
7,934
Positive F edges
66
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 304 · weight 42,177
304
#2
NPI 1023019924
Degree 165 · weight 14,957
165
#3
NPI 1043211444
Degree 77 · weight 9,040
77
#4
NPI 1871669564
Degree 71 · weight 8,965
71
#5
NPI 1790749711
Degree 108 · weight 7,823
108
#6
NPI 1023019569
Degree 68 · weight 7,105
68
#7
NPI 1386629012
Degree 114 · weight 6,946
114
#8
NPI 1134179567
Degree 65 · weight 6,872
65
Most negative curvature
#1
Forman -58,098,699
1134179567 → 1982668927
Weight 996 · Forman -58,098,699
#2
Forman -54,255,982
1902096555 → 1982668927
Weight 897 · Forman -54,255,982
#3
Forman -53,545,244
1780659797 → 1982668927
Weight 889 · Forman -53,545,244
#4
Forman -52,058,214
1093779555 → 1982668927
Weight 814 · Forman -52,058,214
#5
Forman -51,743,843
1720053085 → 1982668927
Weight 828 · Forman -51,743,843
#6
Forman -51,706,980
1982661674 → 1982668927
Weight 798 · Forman -51,706,980
#7
Forman -51,422,716
1558337006 → 1982668927
Weight 825 · Forman -51,422,716
#8
Forman -48,215,309
1598873143 → 1982668927
Weight 728 · Forman -48,215,309
Strongest referral edges
#1
Weight 1,193
1437213337 → 1497730980
Weight 1,193 · Forman -621,738
#2
Weight 1,123
1437213337 → 1518968411
Weight 1,123 · Forman -894,272
#3
Weight 1,067
1851392724 → 1861406480
Weight 1,067 · Forman -461,290
#4
Weight 996
1134179567 → 1982668927
Weight 996 · Forman -58,098,699
#5
Weight 897
1902096555 → 1982668927
Weight 897 · Forman -54,255,982
#6
Weight 889
1780659797 → 1982668927
Weight 889 · Forman -53,545,244
#7
Weight 828
1720053085 → 1982668927
Weight 828 · Forman -51,743,843
#8
Weight 825
1558337006 → 1982668927
Weight 825 · Forman -51,422,716