Every certified lab of Castle Biosciences (stock: CSTL) with its yearly tests. Official US government data, as of April 2026.
Certified labs
4
2 states
Tests a year
13K
Reported by inspected labs
Labs over 1 million tests
0
4 inspected labs
Medicare lab payments, 2024
$74.2M
12K tests
Castle Biosciences has 4 labs with an active federal lab certificate in 2 states (as of April 2026). 4 of them run more than simple tests and are inspected; 0 report over 1 million tests a year. By type: independent lab (4).
The states with the most Castle Biosciences labs are Arizona (3), Pennsylvania (1).
Its inspected labs report 13K tests a year in total. The largest is Castle Biosciences, Inc in Phoenix, AZ with 12K tests a year.
Original Medicare paid $74.2M for 12K lab tests billed by the 1 provider numbers (NPIs) linked to its labs in 2024. This is a lower bound, because not every lab links to an NPI.
Sorted by yearly tests
| Lab | Type | Tests a year | Accredited by |
|---|---|---|---|
| Castle Biosciences, Inc 3737 N 7th Street Ste 160, Phoenix, AZ | Independent lab | 12K | CAP |
| Castle Biosciences, in Cb2 Lab 3707 N 7th St #110, Phoenix, AZ | Independent lab | 300 | CAP |
| Altheadx, Inc (A Wholly Owned Subsidiary 3737 N 7th St #170, Phoenix, AZ | Independent lab | 300 | CAP |
| Cernostics, Inc (Castle Biosciences) 100 S Commons #245, Pittsburgh, PA | Independent lab |
| 100 |
| CAP |