Quick answers
- Which hospitals does Estela Diesfeld work at?
- Medicare's official clinician data lists Estela Diesfeld at 1 hospital: St Johns Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Estela Diesfeld see patients?
- Medicare's clinician data lists 2 practice locations, including Oxnard, CA and Camarillo, CA. Call before your visit to confirm the address.
- What is Estela Diesfeld's specialty?
- Medicare lists Pain Management as the primary specialty, and also Anesthesiology.
- Does Estela Diesfeld accept Medicare assignment?
- Yes. Medicare's clinician data says Estela Diesfeld 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 Estela Diesfeld?
- (805) 988-2500, as listed in official Medicare / NPI Registry data.
- What is Estela Diesfeld's NPI number?
- 1376652909. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Estela Diesfeld works
Medicare's Facility Affiliation Data lists Estela Diesfeld at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- St Johns Regional Medical CenterOxnard, CA · Acute Care Hospital · CCN 050082
Practice locations
Addresses where Estela Diesfeld is enrolled with Medicare (CMS data updated 2026-10-02).
- 1600 N Rose AveOxnard, CA 93030 (805) 988‑2500
- 2309 Antonio AveCamarillo, CA 93010 (805) 389‑5800
Group practices
Medicare enrollment lists Estela Diesfeld as a member of this group (CMS data updated 2026-10-02).
- Palm Springs Anesthesia Services PC92 clinicians in the group
Specialties
- Pain Managementprimary
- Anesthesiologyalso
Other pain management doctors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Irvine, California College Of Medicine |
| Graduation year | 1982 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1376652909 |
| 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