Quick answers
- Which hospitals does Oliver H. Gantz work at?
- Medicare's official clinician data lists Oliver H. Gantz at 3 hospitals: Ronald Reagan UCLA Medical Center, Santa Monica - UCLA Medical Center & Orthopaedic Hospital and UCLA West Valley Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Oliver H. Gantz see patients?
- Medicare's clinician data lists 2 practice locations, including Thousand Oaks, CA and Los Angeles, CA. Call before your visit to confirm the address.
- What is Oliver H. Gantz's specialty?
- Medicare lists Otolaryngology as the primary specialty.
- Does Oliver H. Gantz accept Medicare assignment?
- Yes. Medicare's clinician data says Oliver H. Gantz 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 Oliver H. Gantz offer telehealth?
- Medicare's clinician data says Oliver H. Gantz offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Oliver H. Gantz?
- (805) 418-3500, as listed in official Medicare / NPI Registry data.
- What is Oliver H. Gantz's NPI number?
- 1952758260. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Oliver H. Gantz works
Medicare's Facility Affiliation Data lists Oliver H. Gantz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ronald Reagan UCLA Medical CenterLos Angeles, CA · Acute Care Hospital · CCN 050262
- Santa Monica - UCLA Medical Center & Orthopaedic HospitalSanta Monica, CA · Acute Care Hospital · CCN 050112
- UCLA West Valley Medical CenterWest Hills, CA · Acute Care Hospital · CCN 050481
Practice locations
Addresses where Oliver H. Gantz is enrolled with Medicare (CMS data updated 2026-10-02).
- 100 Moody CtThousand Oaks, CA 91360 (805) 418‑3500
- 200 Medical Plaza, Suite 550Los Angeles, CA 90024 (310) 794‑1110
Group practices
Medicare enrollment lists Oliver H. Gantz as a member of this group (CMS data updated 2026-10-02).
- The Regents of the University of California34 clinicians in the group
Specialties
- Otolaryngologyprimary
Other ENT doctors in Thousand Oaks
Clinicians with the same Medicare primary specialty in Thousand Oaks, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1952758260 |
| 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