Quick answers
- Which hospitals does Alyssa Sandquist work at?
- Medicare's official clinician data lists Alyssa Sandquist at 1 hospital: St Johns Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alyssa Sandquist 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 Alyssa Sandquist's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Alyssa Sandquist accept Medicare assignment?
- Yes. Medicare's clinician data says Alyssa Sandquist 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 Alyssa Sandquist?
- (805) 485-2400, as listed in official Medicare / NPI Registry data.
- What is Alyssa Sandquist's NPI number?
- 1225538523. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alyssa Sandquist works
Medicare's Facility Affiliation Data lists Alyssa Sandquist 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 Alyssa Sandquist is enrolled with Medicare (CMS data updated 2026-10-02).
- 1910 Outlet Ctr DrOxnard, CA 93036 (805) 485‑2400
- 4000 Calle Tecate, Suite 105Camarillo, CA 93012 (805) 485‑2400
Group practices
Medicare enrollment lists Alyssa Sandquist as a member of these groups (CMS data updated 2026-10-02).
- West Coast Critical Care Specialists, Inc.17 clinicians in the group
- West Coast Pulmonary Physicians a Professional Medical Corporation11 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Oxnard
Clinicians with the same Medicare primary specialty in Oxnard, CA — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225538523 |
| 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