Quick answers
- Which hospitals does Adrian R. Castillo work at?
- Medicare's official clinician data lists Adrian R. Castillo at 1 hospital: St Johns Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Adrian R. Castillo see patients?
- Medicare's clinician data lists 1 practice location in Oxnard, CA. Call before your visit to confirm the address.
- What is Adrian R. Castillo's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Adrian R. Castillo accept Medicare assignment?
- Yes. Medicare's clinician data says Adrian R. 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.
- Does Adrian R. Castillo offer telehealth?
- Medicare's clinician data says Adrian R. Castillo offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Adrian R. Castillo?
- (805) 351-8212, as listed in official Medicare / NPI Registry data.
- What is Adrian R. Castillo's NPI number?
- 1679006605. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Adrian R. Castillo works
Medicare's Facility Affiliation Data lists Adrian R. Castillo at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- St Johns Regional Medical CenterOxnard, CA · Acute Care Hospital · CCN 050082
Practice locations
Addresses where Adrian R. Castillo is enrolled with Medicare (CMS data updated 2026-10-02).
- 2241 Wankel Way, Suite COxnard, CA 93030 (805) 351‑8212
Group practices
Medicare enrollment lists Adrian R. Castillo as a member of this group (CMS data updated 2026-10-02).
- Cabrillo Cardiology Medical Group Inc9 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in California →
Other cardiologists in Oxnard
Clinicians with the same Medicare primary specialty in Oxnard, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1679006605 |
| 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