Quick answers
- Which hospitals does Jeffrey B. Allan work at?
- Medicare's official clinician data lists Jeffrey B. Allan at 4 hospitals: Adventist Health Simi Valley, Community Memorial Hospital - Ventura, Northridge Hospital Medical Center and St Johns Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jeffrey B. Allan see patients?
- Medicare's clinician data lists 1 practice location in Camarillo, CA. Call before your visit to confirm the address.
- What is Jeffrey B. Allan's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Geriatric Medicine.
- Does Jeffrey B. Allan accept Medicare assignment?
- Yes. Medicare's clinician data says Jeffrey B. Allan 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 Jeffrey B. Allan offer telehealth?
- Medicare's clinician data says Jeffrey B. Allan offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Jeffrey B. Allan?
- (805) 484-0055, as listed in official Medicare / NPI Registry data.
- What is Jeffrey B. Allan's NPI number?
- 1407870652. 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 B. Allan works
Medicare's Facility Affiliation Data lists Jeffrey B. Allan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adventist Health Simi ValleySimi Valley, CA · Acute Care Hospital · CCN 050236
- Community Memorial Hospital - VenturaVentura, CA · Acute Care Hospital · CCN 050394
- Northridge Hospital Medical CenterNorthridge, CA · Acute Care Hospital · CCN 050116
- St Johns Regional Medical CenterOxnard, CA · Acute Care Hospital · CCN 050082
Practice locations
Addresses where Jeffrey B. Allan is enrolled with Medicare (CMS data updated 2026-10-02).
- 58 W Loop DrCamarillo, CA 93010 (805) 484‑0055
Specialties
- Internal Medicineprimary
- Geriatric Medicinealso
Other internal medicine doctors in Camarillo
Clinicians with the same Medicare primary specialty in Camarillo, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1407870652 |
| 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