Wellstar Atlanta Medical Center · Referral network
HSA 11007 · 2014 · 1739 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
-629,303
Median F
-234,591
Min F
-16,571,275
Max F
380
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
2,862
Edges
50,993
Avg clustering
0.608
Density
0.0125
Forman μ
-88.5
Forman σ
119.5
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
478,240
Avg degree
9.20
Max degree
194
Negative F edges
7,930
Positive F edges
70
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 1013924760
Degree 194 · weight 14,943
194
#2
NPI 1770545675
Degree 162 · weight 13,846
162
#3
NPI 1972650794
Degree 151 · weight 13,466
151
#4
NPI 1336215037
Degree 150 · weight 11,781
150
#5
NPI 1619984705
Degree 154 · weight 11,646
154
#6
NPI 1528021094
Degree 135 · weight 11,390
135
#7
NPI 1255465696
Degree 114 · weight 11,015
114
#8
NPI 1790747699
Degree 127 · weight 10,665
127
Most negative curvature
#1
Forman -16,571,275
1013924760 → 1043227895
Weight 643 · Forman -16,571,275
#2
Forman -16,222,835
1013924760 → 1588671333
Weight 1,078 · Forman -16,222,835
#3
Forman -14,191,287
1013924760 → 1629088083
Weight 864 · Forman -14,191,287
#4
Forman -12,798,730
1528021094 → 1770545675
Weight 523 · Forman -12,798,730
#5
Forman -12,584,674
1700064342 → 1972650794
Weight 1,472 · Forman -12,584,674
#6
Forman -12,204,328
1720040918 → 1972650794
Weight 1,405 · Forman -12,204,328
#7
Forman -12,079,405
1013924760 → 1821074881
Weight 431 · Forman -12,079,405
#8
Forman -11,597,653
1770545675 → 1790747699
Weight 480 · Forman -11,597,653
Strongest referral edges
#1
Weight 1,472
1700064342 → 1972650794
Weight 1,472 · Forman -12,584,674
#2
Weight 1,405
1720040918 → 1972650794
Weight 1,405 · Forman -12,204,328
#3
Weight 1,373
1225048689 → 1992722821
Weight 1,373 · Forman -3,957,314
#4
Weight 1,078
1013924760 → 1588671333
Weight 1,078 · Forman -16,222,835
#5
Weight 979
1023095957 → 1356333645
Weight 979 · Forman -35,584
#6
Weight 864
1013924760 → 1629088083
Weight 864 · Forman -14,191,287
#7
Weight 743
1043227895 → 1588671333
Weight 743 · Forman -7,163,808
#8
Weight 709
1386739571 → 1942210307
Weight 709 · Forman -586,549