Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alyssa Sandquist
Nurse Practitioner in Oxnard, CA · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1225538523
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Registry record
Entity type Individual (Type 1)
Name Alyssa Sandquist
Sex Female
Practice address St. John'S Regional Medical Center - 1600 N Rose Avenue, Oxnard, CA, 93030
Phone (805) 988-2500
Fax (805) 485-3025
Enumeration date Feb 14, 2018
Last updated in NPPES Feb 26, 2025
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP61118837 (WA) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 232247 (NC) Secondary
363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP95030240 (CA) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP95030240 (CA) Primary
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Is NPI 1225538523 active?
Yes, as of the latest NPPES snapshot, NPI 1225538523 is active (record last updated 2025-02-26).
How do I verify Alyssa Sandquist's NPI record?
Cross-check NPI 1225538523 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Niusha Damaghi Critical Care Medicine (Internal Medicine) Physician · Oxnard, CA NPI 1417210600 Jennifer Sisco Internal Medicine Physician · Oxnard, CA NPI 1366869471 Emma Duncan Acute Care Nurse Practitioner · Oxnard, CA NPI 1902268394 Cinthia Orosco Acute Care Nurse Practitioner · Oxnard, CA NPI 1194505172
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-26.