Women & Infants Hosp Of Ri · Referral network
HSA 41005 · 2014 · 1040 physicians · 6620 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
-4,515,840
Median F
-455,177
Min F
-275,028,816
Max F
156
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,308
Edges
20,112
Avg clustering
0.601
Density
0.0235
Forman μ
-156.5
Forman σ
189.3
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
383,434
Avg degree
12.73
Max degree
420
Negative F edges
6,576
Positive F edges
44
Nonzero F edges
6,620
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 1003839218
Degree 420 · weight 45,750
420
#2
NPI 1376562314
Degree 407 · weight 43,914
407
#3
NPI 1083636674
Degree 331 · weight 24,184
331
#4
NPI 1295756765
Degree 302 · weight 22,290
302
#5
NPI 1871514349
Degree 254 · weight 18,712
254
#6
NPI 1962449900
Degree 225 · weight 17,756
225
#7
NPI 1346371184
Degree 184 · weight 11,901
184
#8
NPI 1033182795
Degree 182 · weight 11,888
182
Most negative curvature
#1
Forman -275,028,816
1003839218 → 1376562314
Weight 2,972 · Forman -275,028,816
#2
Forman -122,427,680
1003839218 → 1962449900
Weight 1,446 · Forman -122,427,680
#3
Forman -112,049,322
1376562314 → 1962449900
Weight 1,397 · Forman -112,049,322
#4
Forman -74,738,660
1003839218 → 1003871856
Weight 773 · Forman -74,738,660
#5
Forman -70,268,687
1003839218 → 1548295942
Weight 672 · Forman -70,268,687
#6
Forman -64,926,795
1003871856 → 1376562314
Weight 693 · Forman -64,926,795
#7
Forman -64,716,384
1376562314 → 1548295942
Weight 676 · Forman -64,716,384
#8
Forman -62,555,018
1003839218 → 1063657526
Weight 557 · Forman -62,555,018
Strongest referral edges
#1
Weight 2,972
1003839218 → 1376562314
Weight 2,972 · Forman -275,028,816
#2
Weight 1,446
1003839218 → 1962449900
Weight 1,446 · Forman -122,427,680
#3
Weight 1,397
1376562314 → 1962449900
Weight 1,397 · Forman -112,049,322
#4
Weight 773
1003839218 → 1003871856
Weight 773 · Forman -74,738,660
#5
Weight 735
1083636674 → 1295756765
Weight 735 · Forman -60,970,400
#6
Weight 730
1083636674 → 1871514349
Weight 730 · Forman -52,646,530
#7
Weight 695
1295756765 → 1871514349
Weight 695 · Forman -46,560,613
#8
Weight 694
1063466621 → 1154368454
Weight 694 · Forman -1,169,059