Quick answers
- Which hospitals does Jonathan E. Shirman work at?
- Medicare's official clinician data lists Jonathan E. Shirman at 1 hospital: Community Memorial Hospital - Ventura. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jonathan E. Shirman see patients?
- Medicare's clinician data lists 2 practice locations, including Oxnard, CA. Call before your visit to confirm the address.
- What is Jonathan E. Shirman's specialty?
- Medicare lists Addiction Medicine as the primary specialty.
- Does Jonathan E. Shirman accept Medicare assignment?
- Yes. Medicare's clinician data says Jonathan E. Shirman 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 Jonathan E. Shirman offer telehealth?
- Medicare's clinician data says Jonathan E. Shirman offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Jonathan E. Shirman?
- (805) 487-5588, as listed in official Medicare / NPI Registry data.
- What is Jonathan E. Shirman's NPI number?
- 1326606898. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jonathan E. Shirman works
Medicare's Facility Affiliation Data lists Jonathan E. Shirman at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Community Memorial Hospital - VenturaVentura, CA · Acute Care Hospital · CCN 050394
Practice locations
Addresses where Jonathan E. Shirman is enrolled with Medicare (CMS data updated 2026-10-02).
- 2921 Saviers RdOxnard, CA 93033 (805) 487‑5588
- 3641 W 5th StOxnard, CA 93030 (805) 985‑5505
Group practices
Medicare enrollment lists Jonathan E. Shirman as a member of this group (CMS data updated 2026-10-02).
- Community Memorial Health System185 clinicians in the group
Specialties
- Addiction Medicineprimary
Other addiction medicine doctors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Lake Erie College Of Osteopathic Medicine, Bradenton |
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1326606898 |
| 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