Quick answers
- Which hospitals does Helen Petroff work at?
- Medicare's official clinician data lists Helen Petroff at 2 hospitals: Community Memorial Hospital - Ojai and Community Memorial Hospital - Ventura. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Helen Petroff see patients?
- Medicare's clinician data lists 1 practice location in Ojai, CA. Call before your visit to confirm the address.
- What is Helen Petroff's specialty?
- Medicare lists Family Practice as the primary specialty.
- Does Helen Petroff accept Medicare assignment?
- Yes. Medicare's clinician data says Helen Petroff 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 Helen Petroff offer telehealth?
- Medicare's clinician data says Helen Petroff offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Helen Petroff?
- (805) 640-0068, as listed in official Medicare / NPI Registry data.
- What is Helen Petroff's NPI number?
- 1609881580. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Helen Petroff works
Medicare's Facility Affiliation Data lists Helen Petroff 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 - OjaiOjai, CA · Critical Access Hospital · CCN 051334
- Community Memorial Hospital - VenturaVentura, CA · Acute Care Hospital · CCN 050394
Practice locations
Addresses where Helen Petroff is enrolled with Medicare (CMS data updated 2026-10-02).
- 1202 Maricopa Hwy, Suite COjai, CA 93023 (805) 640‑0068
Group practices
Medicare enrollment lists Helen Petroff as a member of this group (CMS data updated 2026-10-02).
- Valley Oak Family Practice Medical Group Inc7 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Ojai
Clinicians with the same Medicare primary specialty in Ojai, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Irvine, California College Of Medicine |
| Graduation year | 2003 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1609881580 |
| 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