Quick answers
- Which hospitals does Jeffrey Tseng work at?
- Medicare's official clinician data lists Jeffrey Tseng at 1 hospital: Los Robles Hospital & Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jeffrey Tseng see patients?
- Medicare's clinician data lists 1 practice location in Thousand Oaks, CA. Call before your visit to confirm the address.
- What is Jeffrey Tseng's specialty?
- Medicare lists Otolaryngology as the primary specialty, and also Allergy/Immunology and Plastic and Reconstructive Surgery.
- Does Jeffrey Tseng accept Medicare assignment?
- Medicare's clinician data says Jeffrey Tseng may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Jeffrey Tseng?
- (805) 496-8103, as listed in official Medicare / NPI Registry data.
- What is Jeffrey Tseng's NPI number?
- 1205990868. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jeffrey Tseng works
Medicare's Facility Affiliation Data lists Jeffrey Tseng at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Los Robles Hospital & Medical CenterThousand Oaks, CA · Acute Care Hospital · CCN 050549
Practice locations
Addresses where Jeffrey Tseng is enrolled with Medicare (CMS data updated 2026-10-02).
- 2220 Lynn Rd, Suite 109Thousand Oaks, CA 91360 (805) 496‑8103
Specialties
Other ENT doctors in Thousand Oaks
Clinicians with the same Medicare primary specialty in Thousand Oaks, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Medical College Of Wisconsin |
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1205990868 |
| 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