Marcus Castillo

Marcus Castillo is a Physician Assistant provider (Physician Assistant) practicing in Saint Cloud, FL, registered in the NPPES registry with NPI 1033099866 since 2025.

✓ Active NPI ✓ Valid NPI checksum

NPI	1033099866
Entity type	Individual (Type 1)
Name	Marcus Castillo
Sex	Male
Practice address	3866 SPIRITED CIR, Saint Cloud, FL, 34772
Phone	4074142642
Enumeration date	2025-09-03
Last updated in NPPES	2025-09-03

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
363A00000X	Physician Assistant	Primary	—	—

Copy-ready billing details

Provider: Marcus Castillo
NPI: 1033099866
Taxonomy: 363A00000X (Physician Assistant)
Address: 3866 SPIRITED CIR, Saint Cloud, FL, 34772

Verify this record

Cross-check NPI 1033099866 against the authoritative CMS record: view Marcus Castillo 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 specialty is Marcus Castillo?

Marcus Castillo is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2025-09-03.