Wellstar Atlanta Medical Center · Referral network
HSA 11007 · 2016 · 1952 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
-1,358,382
Median F
-271,713
Min F
-68,278,545
Max F
570
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
3,320
Edges
61,472
Avg clustering
0.621
Density
0.0112
Forman μ
-109.2
Forman σ
154.4
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
494,158
Avg degree
8.20
Max degree
360
Negative F edges
7,918
Positive F edges
82
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 360 · weight 31,527
360
#2
NPI 1144316795
Degree 246 · weight 20,445
246
#3
NPI 1255465696
Degree 168 · weight 18,474
168
#4
NPI 1619984705
Degree 159 · weight 14,185
159
#5
NPI 1770545675
Degree 157 · weight 13,038
157
#6
NPI 1043227895
Degree 153 · weight 11,819
153
#7
NPI 1528021094
Degree 140 · weight 11,437
140
#8
NPI 1972650794
Degree 146 · weight 10,907
146
Most negative curvature
#1
Forman -68,278,545
1013924760 → 1629088083
Weight 1,573 · Forman -68,278,545
#2
Forman -67,385,143
1013924760 → 1588671333
Weight 1,541 · Forman -67,385,143
#3
Forman -60,547,276
1013924760 → 1043227895
Weight 957 · Forman -60,547,276
#4
Forman -40,203,837
1013924760 → 1992722821
Weight 575 · Forman -40,203,837
#5
Forman -39,465,413
1013924760 → 1871770735
Weight 555 · Forman -39,465,413
#6
Forman -37,875,900
1013924760 → 1821074881
Weight 477 · Forman -37,875,900
#7
Forman -37,403,287
1013924760 → 1972512903
Weight 498 · Forman -37,403,287
#8
Forman -36,733,083
1013924760 → 1386671766
Weight 481 · Forman -36,733,083
Strongest referral edges
#1
Weight 2,424
1285761833 → 1811170145
Weight 2,424 · Forman -9,035,861
#2
Weight 1,573
1013924760 → 1629088083
Weight 1,573 · Forman -68,278,545
#3
Weight 1,557
1457397382 → 1811170145
Weight 1,557 · Forman -5,514,616
#4
Weight 1,541
1013924760 → 1588671333
Weight 1,541 · Forman -67,385,143
#5
Weight 1,283
1225048689 → 1386671766
Weight 1,283 · Forman -2,206,058
#6
Weight 1,166
1366490419 → 1811170145
Weight 1,166 · Forman -4,774,301
#7
Weight 1,152
1225048689 → 1992722821
Weight 1,152 · Forman -2,139,335
#8
Weight 957
1013924760 → 1043227895
Weight 957 · Forman -60,547,276