Whittier Rehabilitation Hospital · Referral network
HSA 22070 · 2014 · 1047 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
-3,222,887
Median F
-666,954
Min F
-98,783,503
Max F
157.7
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,470
Edges
29,774
Avg clustering
0.669
Density
0.0276
Forman μ
-192.1
Forman σ
203.7
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
465,118
Avg degree
15.28
Max degree
415
Negative F edges
7,966
Positive F edges
34
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 1487637062
Degree 415 · weight 36,964
415
#2
NPI 1710911565
Degree 318 · weight 25,534
318
#3
NPI 1922085273
Degree 287 · weight 25,202
287
#4
NPI 1609892199
Degree 281 · weight 23,277
281
#5
NPI 1528028057
Degree 251 · weight 19,291
251
#6
NPI 1619134541
Degree 267 · weight 18,879
267
#7
NPI 1194740910
Degree 234 · weight 17,664
234
#8
NPI 1902899370
Degree 214 · weight 16,979
214
Most negative curvature
#1
Forman -98,783,503
1487637062 → 1710911565
Weight 767 · Forman -98,783,503
#2
Forman -96,675,304
1487637062 → 1922085273
Weight 781 · Forman -96,675,304
#3
Forman -94,656,235
1487637062 → 1609892199
Weight 803 · Forman -94,656,235
#4
Forman -92,528,597
1487637062 → 1528028057
Weight 913 · Forman -92,528,597
#5
Forman -82,723,107
1487637062 → 1598747883
Weight 877 · Forman -82,723,107
#6
Forman -80,821,432
1487637062 → 1639152564
Weight 887 · Forman -80,821,432
#7
Forman -78,732,494
1487637062 → 1619134541
Weight 632 · Forman -78,732,494
#8
Forman -76,905,731
1194740910 → 1487637062
Weight 664 · Forman -76,905,731
Strongest referral edges
#1
Weight 1,633
1528042454 → 1922085273
Weight 1,633 · Forman -50,187,295
#2
Weight 1,320
1699721894 → 1922085273
Weight 1,320 · Forman -43,772,430
#3
Weight 1,096
1881653152 → 1962471524
Weight 1,096 · Forman -4,796,670
#4
Weight 1,072
1104895622 → 1962471524
Weight 1,072 · Forman -4,905,352
#5
Weight 1,043
1205854718 → 1962471524
Weight 1,043 · Forman -6,482,045
#6
Weight 939
1184607855 → 1578716338
Weight 939 · Forman -687,927
#7
Weight 936
1427082189 → 1528042454
Weight 936 · Forman -5,066,156
#8
Weight 913
1487637062 → 1528028057
Weight 913 · Forman -92,528,597