Quick answers
- Which hospitals does William E. Gilli work at?
- Medicare's official clinician data lists William E. Gilli at 3 hospitals: Adventist Health Bakersfield, Bakersfield Memorial Hospital and French Hospital Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William E. Gilli see patients?
- Medicare's clinician data lists 1 practice location in Bakersfield, CA. Call before your visit to confirm the address.
- What is William E. Gilli's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does William E. Gilli accept Medicare assignment?
- Yes. Medicare's clinician data says William E. Gilli 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 William E. Gilli offer telehealth?
- Medicare's clinician data says William E. Gilli offers telehealth services. Ask the office which visits can be done by video or phone.
- What is William E. Gilli's NPI number?
- 1447257100. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William E. Gilli works
Medicare's Facility Affiliation Data lists William E. Gilli at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Health BakersfieldBakersfield, CA · Acute Care Hospital · CCN 050455
- Bakersfield Memorial HospitalBakersfield, CA · Acute Care Hospital · CCN 050036
- French Hospital Medical CenterSan Luis Obispo, CA · Acute Care Hospital · CCN 050232
Practice locations
Addresses where William E. Gilli is enrolled with Medicare (CMS data updated 2026-10-02).
- 8327 Brimhall Rd, Suite 704Bakersfield, CA 93312
Group practices
Medicare enrollment lists William E. Gilli as a member of this group (CMS data updated 2026-10-02).
- Mesa West Medical Inc2 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Bakersfield
Clinicians with the same Medicare primary specialty in Bakersfield, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Southern California Keck School Of Medicine |
| Graduation year | 1983 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1447257100 |
| 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