Quick answers
- Which hospitals does Herbert Sy Jr. work at?
- Medicare's official clinician data lists Herbert Sy Jr. at 1 hospital: Antelope Valley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Herbert Sy Jr. see patients?
- Medicare's clinician data lists 3 practice locations, including Panorama City, CA and Lancaster, CA. Call before your visit to confirm the address.
- What is Herbert Sy Jr.'s specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Herbert Sy Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says Herbert Sy Jr. 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 Herbert Sy Jr.?
- (818) 375-2000, as listed in official Medicare / NPI Registry data.
- What is Herbert Sy Jr.'s NPI number?
- 1114512886. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Herbert Sy Jr. works
Medicare's Facility Affiliation Data lists Herbert Sy Jr. at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Antelope Valley HospitalLancaster, CA · Acute Care Hospital · CCN 050056
Practice locations
Addresses where Herbert Sy Jr. is enrolled with Medicare (CMS data updated 2026-10-02).
- 13652 Cantara StPanorama City, CA 91402 (818) 375‑2000
- 1600 W Ave JLancaster, CA 93534 (661) 949‑5000
- 43112 15th St WLancaster, CA 93534 (661) 726‑2378
Group practices
Medicare enrollment lists Herbert Sy Jr. as a member of these groups (CMS data updated 2026-10-02).
- Southern California Permanente Medical Group11,293 clinicians in the group
- Antelope Valley Emergency Medical Associates Inc33 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Panorama City
Clinicians with the same Medicare primary specialty in Panorama City, CA — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1114512886 |
| 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