Quick answers
- Which hospitals does Jason R. Castillo work at?
- Medicare's official clinician data lists Jason R. Castillo at 1 hospital: Lac/Harbor-Ucla Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jason R. Castillo see patients?
- Medicare's clinician data lists 2 practice locations, including Anaheim, CA and Irvine, CA. Call before your visit to confirm the address.
- What is Jason R. Castillo's specialty?
- Medicare lists Dermatology as the primary specialty.
- Does Jason R. Castillo accept Medicare assignment?
- Yes. Medicare's clinician data says Jason 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.
- What is the phone number for Jason R. Castillo?
- (714) 279-6088, as listed in official Medicare / NPI Registry data.
- What is Jason R. Castillo's NPI number?
- 1497098644. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jason R. Castillo works
Medicare's Facility Affiliation Data lists Jason R. Castillo at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Lac/Harbor-Ucla Medical CenterTorrance, CA · Acute Care Hospital · CCN 050376
Practice locations
Addresses where Jason R. Castillo is enrolled with Medicare (CMS data updated 2026-10-02).
- 5475 E La Palma AveAnaheim, CA 92807 (714) 279‑6088
- 6 WillardIrvine, CA 92604 (949) 262‑5600
Group practices
Medicare enrollment lists Jason R. Castillo as a member of this group (CMS data updated 2026-10-02).
- Southern California Permanente Medical Group11,293 clinicians in the group
Specialties
- Dermatologyprimary
Other dermatologists in Anaheim
Clinicians with the same Medicare primary specialty in Anaheim, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 2013 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1497098644 |
| 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