Castle Biosciences, Inc
NPI 1770734253 · Clinical Medical Laboratory · Phoenix, AZ
Enrolled with Medicare as Part B Supplier - Independent Clinical Laboratory · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Castle Biosciences, Inc is a Clinical Medical Laboratory organization in Phoenix, AZ (NPI 1770734253).
Provider details
- NPI number
- 1770734253
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Organization subpart
- No
- Authorized official
- Derek Maetzold, Ceo(281) 796-9032
Specialties & taxonomies
Laboratories
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
12,333 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Mrna Gene Analysis of 31 Genes in Skin Melanoma Tissue Specimen81529 | 9,766 | $7,049 |
| Genomic Analysis of 15 Genes to Evaluate for Psychiatric Disorders0411U | 841 | $1,292 |
| Mrna Gene Expression Profiling of 23 Genes in Skin Melanoma Tissue Sample0090U | 491 | $1,911 |
| Gene Analysis (cytochrome P450, Family 2, Subfamily C, Polypeptide 19) Common Variants81225 | 432 | $286 |
| Mrna Gene Expression Analysis of 15 Genes in Eye Melanoma O Tissue Or Fine Needle Aspirate81552 | 395 | $7,620 |
| Gene Analysis (cytochrome P450, Family 2, Subfamily D, Polypeptide 6) Common Variants81226 | 373 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-10-02
- Last updated
- 2024-03-11
- Certified
- 2024-03-11
Frequently asked questions
- What is Castle Biosciences, Inc's NPI number?
- Castle Biosciences, Inc's National Provider Identifier (NPI) is 1770734253, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Castle Biosciences, Inc?
- Castle Biosciences, Inc is classified in the NPPES registry as Clinical Medical Laboratory (Laboratories).
- Where is Castle Biosciences, Inc located?
- Castle Biosciences, Inc's practice location on file with NPPES is 3737 N 7th St, Phoenix, AZ 85014-5017.
- What is Castle Biosciences, Inc's phone number?
- The practice phone number listed in the NPPES registry for Castle Biosciences, Inc is (281) 796-9032.
- Does Castle Biosciences, Inc accept Medicare?
- Castle Biosciences, Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Castle Biosciences, Inc?
- The authorized official listed on Castle Biosciences, Inc's NPPES record is Derek Maetzold, Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Castle Biosciences, Inc's NPI active?
- Yes — Castle Biosciences, Inc's NPI (1770734253) is active in the NPPES registry as of the last update on 2024-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.