Quick answers
- Which hospitals does Yiliam Castillo work at?
- Medicare's official clinician data lists Yiliam Castillo at 3 hospitals: AdventHealth Orlando, HCA Florida Osceola Hospital and Ucf Lake Nona Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Yiliam Castillo see patients?
- Medicare's clinician data lists 1 practice location in Kissimmee, FL. Call before your visit to confirm the address.
- What is Yiliam Castillo's specialty?
- Medicare lists Infectious Disease as the primary specialty, and also Internal Medicine.
- Does Yiliam Castillo accept Medicare assignment?
- Yes. Medicare's clinician data says Yiliam Castillo accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Yiliam Castillo?
- (407) 350-5917, as listed in official Medicare / NPI Registry data.
- What is Yiliam Castillo's NPI number?
- 1922547942. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Yiliam Castillo works
Medicare's Facility Affiliation Data lists Yiliam Castillo at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- AdventHealth OrlandoOrlando, FL · Acute Care Hospital · CCN 100007
- HCA Florida Osceola HospitalKissimmee, FL · Acute Care Hospital · CCN 100110
- Ucf Lake Nona HospitalOrlando, FL · Acute Care Hospital · CCN 100350
Practice locations
Addresses where Yiliam Castillo is enrolled with Medicare (CMS data updated 2026-10-02).
- 1182 Cypress Glen CirKissimmee, FL 34741 (407) 350‑5917
Group practices
Medicare enrollment lists Yiliam Castillo as a member of this group (CMS data updated 2026-10-02).
- Osceola Infectious Disease Consultancy Services PLLC2 clinicians in the group
Specialties
- Infectious Diseaseprimary
- Internal Medicinealso
Other infectious disease doctors in Kissimmee
Clinicians with the same Medicare primary specialty in Kissimmee, FL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2007 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1922547942 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians