Whittier Rehabilitation Hospital · Referral network
HSA 22070 · 2017 · 1111 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
-2,373,295
Median F
-503,551
Min F
-87,076,081
Max F
324
From referral_network_features
Precomputed on the full thresholded network (all edges, Python toolkit, unit node weights).
Nodes
1,641
Edges
33,291
Avg clustering
0.651
Density
0.0247
Forman μ
-199.6
Forman σ
225.4
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
480,179
Avg degree
14.40
Max degree
386
Negative F edges
7,957
Positive F edges
43
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 1386897817
Degree 386 · weight 31,511
386
#2
NPI 1487637062
Degree 322 · weight 27,480
322
#3
NPI 1639152564
Degree 257 · weight 20,344
257
#4
NPI 1609892199
Degree 266 · weight 20,271
266
#5
NPI 1598747883
Degree 211 · weight 15,933
211
#6
NPI 1528028057
Degree 228 · weight 14,645
228
#7
NPI 1144294273
Degree 186 · weight 14,628
186
#8
NPI 1679714901
Degree 89 · weight 14,578
89
Most negative curvature
#1
Forman -87,076,081
1386897817 → 1487637062
Weight 740 · Forman -87,076,081
#2
Forman -85,192,480
1386897817 → 1639152564
Weight 1,033 · Forman -85,192,480
#3
Forman -71,952,500
1386897817 → 1598747883
Weight 914 · Forman -71,952,500
#4
Forman -68,180,231
1386897817 → 1609892199
Weight 622 · Forman -68,180,231
#5
Forman -65,584,434
1487637062 → 1639152564
Weight 952 · Forman -65,584,434
#6
Forman -63,853,677
1386897817 → 1528028057
Weight 706 · Forman -63,853,677
#7
Forman -56,946,146
1386897817 → 1821258179
Weight 703 · Forman -56,946,146
#8
Forman -55,831,104
1386897817 → 1831172766
Weight 685 · Forman -55,831,104
Strongest referral edges
#1
Weight 1,395
1679714901 → 1962471524
Weight 1,395 · Forman -7,907,814
#2
Weight 1,314
1427082189 → 1699721894
Weight 1,314 · Forman -10,259,522
#3
Weight 1,247
1427082189 → 1528042454
Weight 1,247 · Forman -7,381,621
#4
Weight 1,215
1679714901 → 1881653152
Weight 1,215 · Forman -7,009,995
#5
Weight 1,149
1699721894 → 1740441971
Weight 1,149 · Forman -10,409,197
#6
Weight 1,146
1205854718 → 1962471524
Weight 1,146 · Forman -4,297,205
#7
Weight 1,064
1528042454 → 1740441971
Weight 1,064 · Forman -7,602,945
#8
Weight 1,033
1386897817 → 1639152564
Weight 1,033 · Forman -85,192,480