Inova Fairfax Hospital · Referral network
HSA 49014 · 2017 · 618 physicians · 3922 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
-1,680,587
Median F
-335,759
Min F
-41,521,332
Max F
440
From referral_network_features
Nodes
797
Edges
11,571
Avg clustering
0.549
Density
0.0365
Forman μ
-81.8
Forman σ
98.8
Rendered graph structure
Total weight
289,009
Avg degree
12.69
Max degree
301
Negative F edges
3,884
Positive F edges
38
Nonzero F edges
3,922
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 1508959636
Degree 301 · weight 30,454
301
#2
NPI 1730356916
Degree 163 · weight 14,988
163
#3
NPI 1902874514
Degree 66 · weight 13,494
66
#4
NPI 1588654669
Degree 214 · weight 13,424
214
#5
NPI 1790753325
Degree 58 · weight 12,582
58
#6
NPI 1487698965
Degree 143 · weight 11,572
143
#7
NPI 1417951062
Degree 97 · weight 10,931
97
#8
NPI 1700809571
Degree 166 · weight 10,506
166
Most negative curvature
#1
Forman -41,521,332
1508959636 → 1588654669
Weight 635 · Forman -41,521,332
#2
Forman -36,977,184
1508959636 → 1730356916
Weight 563 · Forman -36,977,184
#3
Forman -35,422,948
1508959636 → 1700809571
Weight 579 · Forman -35,422,948
#4
Forman -34,240,880
1508959636 → 1952392482
Weight 542 · Forman -34,240,880
#5
Forman -30,395,141
1487698965 → 1508959636
Weight 435 · Forman -30,395,141
#6
Forman -27,736,428
1508959636 → 1902806714
Weight 409 · Forman -27,736,428
#7
Forman -23,875,377
1417951062 → 1508959636
Weight 306 · Forman -23,875,377
#8
Forman -23,201,058
1134288699 → 1508959636
Weight 345 · Forman -23,201,058
Strongest referral edges
#1
Weight 2,298
1790753325 → 1902874514
Weight 2,298 · Forman -12,599,366
#2
Weight 1,874
1427026020 → 1902874514
Weight 1,874 · Forman -9,806,675
#3
Weight 1,823
1750358776 → 1902874514
Weight 1,823 · Forman -8,654,715
#4
Weight 1,789
1881963403 → 1902874514
Weight 1,789 · Forman -9,103,364
#5
Weight 1,753
1427026020 → 1790753325
Weight 1,753 · Forman -8,237,490
#6
Weight 1,719
1205803202 → 1902874514
Weight 1,719 · Forman -8,213,269
#7
Weight 1,717
1750358776 → 1790753325
Weight 1,717 · Forman -7,165,083
#8
Weight 1,660
1790753325 → 1881963403
Weight 1,660 · Forman -7,555,113