Castle Biosciences, Inc
Castle Biosciences, Inc is a healthcare organization registered as Clinical Medical Laboratory in Phoenix, AZ, holding Type 2 (organization) NPI 1770734253 since 2008. The authorized official on file is Derek Maetzold, Ceo.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1770734253 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Castle Biosciences, Inc |
| Practice address | 3737 N 7TH ST, SUITE 160, Phoenix, AZ, 85014 |
| Phone | 2817969032 |
| Fax | 8664312924 |
| Enumeration date | 2008-10-02 |
| Last updated in NPPES | 2024-03-11 |
Authorized official
| Name | Derek Maetzold |
|---|---|
| Title | Ceo |
| Phone | 2817969032 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 291U00000X | Clinical Medical Laboratory | Primary | — | — |
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 7100731920 | Medicaid | KY | — |
| 30004741190001 | Medicaid | KS | — |
Copy-ready billing details
Provider: Castle Biosciences, Inc NPI: 1770734253 Taxonomy: 291U00000X (Clinical Medical Laboratory) Address: 3737 N 7TH ST, SUITE 160, Phoenix, AZ, 85014
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1891863536 | Premier Hospice LLC | Organization | Community Based Hospice Care Agency | Phoenix, AZ |
| 1457664971 | Marc Community Resources, Inc. | Organization | Adult Mental Health Clinic/Center | Phoenix, AZ |
| 1912391640 | Homeassist Health, Inc | Organization | In Home Supportive Care Agency | Phoenix, AZ |
| 1558816082 | Marcus Unrein | Individual | Other Technician | Phoenix, AZ |
| 1972042828 | Samantha Payson | Individual | Behavior Technician | Phoenix, AZ |
| 1104365659 | Thaddeus Allie | Individual | Behavior Technician | Phoenix, AZ |
Verify this record
Cross-check NPI 1770734253 against the authoritative CMS record: view Castle Biosciences, Inc on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
What type of organization is Castle Biosciences, Inc?
What is a Type 2 NPI?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-03-11.