Marcus Castillo
NPI 1033099866 · Physician Assistant · Saint Cloud, FL
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcus Castillo is a Physician Assistant provider in Saint Cloud, FL (NPI 1033099866).
Provider details
- NPI number
- 1033099866
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2025-09-03
- Last updated
- 2025-09-03
- Certified
- 2025-09-03
Frequently asked questions
- What is Marcus Castillo's NPI number?
- Marcus Castillo's National Provider Identifier (NPI) is 1033099866, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcus Castillo's specialty?
- Marcus Castillo is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marcus Castillo located?
- Marcus Castillo's practice location on file with NPPES is 3866 Spirited Cir, Saint Cloud, FL 34772-8241.
- What is Marcus Castillo's phone number?
- The practice phone number listed in the NPPES registry for Marcus Castillo is (407) 414-2642.
- Does Marcus Castillo accept Medicare?
- Marcus Castillo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcus Castillo's NPI active?
- Yes — Marcus Castillo's NPI (1033099866) is active in the NPPES registry as of the last update on 2025-09-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.