Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Alyssa Sandquist

Individual provider Nurse Practitioner · NPI 1225538523

Alyssa Sandquist is a Nurse Practitioner in Oxnard, California. Qualified in 2017, 9 years ago. Practices with West Coast Critical Care Specialists, Inc, a 19-clinician group, works from 6 locations and accepts Medicare assignment. Licensed in California, North Carolina and Washington.

Years since qualifying
9
Licensed in
CA, NC, WA
In the registry since
2018
Specialties on file
4
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Practice location Address checks out

St John's Regional Medical Center - 1600 N Rose Ave
Oxnard, CA 93030-3722
Phone: (805) 988-2500
Fax: (805) 485-3025
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (5)

  • St. John'S Pleasant Valley Hospital - 2309 Antonio Ave, Camarillo, CA 93010-1414 — (805) 389-5800
  • 4000 Calle Tecate #105, Camarillo, CA 93012-5283 — (805) 485-2400
  • 1910 Outlet Center Drive, Oxnard, CA 93036-0677 — (805) 485-2400
  • 2100 Stantonsburg Rd, Greenville, NC 27834-2818 — (252) 847-4100
  • 62 W 7th Ave Ste 232, Spokane, WA 99204-2321 — (509) 474-2041

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence NP95030240 (CA)
Nurse Practitioner Taxonomy 363L00000X · Licence AP61118837 (WA)
Nurse Practitioner Taxonomy 363L00000X · Licence 232247 (NC)
Gerontology Nurse Practitioner Taxonomy 363LG0600X · Licence NP95030240 (CA)

Record details

NPI number1225538523
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedFebruary 14, 2018
Last updated in NPPESFebruary 26, 2025
Certification dateFebruary 26, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice West Coast Critical Care Specialists, Inc. — 19 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients101
Services billed 250 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at West Coast Critical Care Specialists, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 19 clinicians in the practice; 12 are shown here.

Other providers in Oxnard