Quick answers
- Which hospitals does Harris L. Wasser work at?
- Medicare's official clinician data lists Harris L. Wasser at 1 hospital: Los Robles Hospital & Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Harris L. Wasser see patients?
- Medicare's clinician data lists 4 practice locations, including Thousand Oaks, CA and Simi Valley, CA. Call before your visit to confirm the address.
- What is Harris L. Wasser's specialty?
- Medicare lists Endocrinology as the primary specialty.
- Does Harris L. Wasser accept Medicare assignment?
- Yes. Medicare's clinician data says Harris L. Wasser 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 Harris L. Wasser?
- (805) 370-0000, as listed in official Medicare / NPI Registry data.
- What is Harris L. Wasser's NPI number?
- 1609915768. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Harris L. Wasser works
Medicare's Facility Affiliation Data lists Harris L. Wasser 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 Harris L. Wasser is enrolled with Medicare (CMS data updated 2026-10-02).
- 1610 E Thousand Oaks Blvd, Suite GThousand Oaks, CA 91362 (805) 370‑0000
- 215 W Janss RdThousand Oaks, CA 91360 (805) 997‑2727
- 2950 N Sycamore Dr, Suite 200Simi Valley, CA 93065
- 2950 Sycamore DrSimi Valley, CA 93065 (805) 522‑4004
Specialties
- Endocrinologyprimary
Other endocrinologists in Thousand Oaks
Clinicians with the same Medicare primary specialty in Thousand Oaks, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1977 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609915768 |
| 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