Thomas Jefferson University Hosp · Referral network
HSA 39095 · 2017 · 2648 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
-769,240
Median F
-149,988
Min F
-32,017,429
Max F
358
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
5,865
Edges
103,064
Avg clustering
0.600
Density
0.0060
Forman μ
-117.3
Forman σ
171.2
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
468,000
Avg degree
6.04
Max degree
235
Negative F edges
7,914
Positive F edges
86
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 1588694632
Degree 235 · weight 21,808
235
#2
NPI 1932134533
Degree 208 · weight 20,510
208
#3
NPI 1184697914
Degree 198 · weight 15,212
198
#4
NPI 1922008861
Degree 164 · weight 12,669
164
#5
NPI 1982695227
Degree 125 · weight 11,752
125
#6
NPI 1225065774
Degree 148 · weight 11,184
148
#7
NPI 1427046564
Degree 109 · weight 8,934
109
#8
NPI 1932199551
Degree 95 · weight 7,790
95
Most negative curvature
#1
Forman -32,017,429
1083806780 → 1588694632
Weight 1,599 · Forman -32,017,429
#2
Forman -30,526,535
1720023054 → 1932134533
Weight 1,926 · Forman -30,526,535
#3
Forman -28,791,532
1205851888 → 1932134533
Weight 1,725 · Forman -28,791,532
#4
Forman -27,138,385
1093735847 → 1588694632
Weight 1,188 · Forman -27,138,385
#5
Forman -24,927,634
1881600955 → 1932134533
Weight 1,295 · Forman -24,927,634
#6
Forman -22,259,744
1689874935 → 1932134533
Weight 1,033 · Forman -22,259,744
#7
Forman -22,227,854
1427046564 → 1588694632
Weight 594 · Forman -22,227,854
#8
Forman -20,456,321
1326078437 → 1588694632
Weight 702 · Forman -20,456,321
Strongest referral edges
#1
Weight 1,926
1720023054 → 1932134533
Weight 1,926 · Forman -30,526,535
#2
Weight 1,725
1205851888 → 1932134533
Weight 1,725 · Forman -28,791,532
#3
Weight 1,599
1083806780 → 1588694632
Weight 1,599 · Forman -32,017,429
#4
Weight 1,295
1881600955 → 1932134533
Weight 1,295 · Forman -24,927,634
#5
Weight 1,254
1225065774 → 1790955342
Weight 1,254 · Forman -8,827,412
#6
Weight 1,188
1093735847 → 1588694632
Weight 1,188 · Forman -27,138,385
#7
Weight 1,175
1174568612 → 1225065774
Weight 1,175 · Forman -8,552,339
#8
Weight 1,033
1689874935 → 1932134533
Weight 1,033 · Forman -22,259,744