Alyssa Sandquist
Nurse Practitioner · Oxnard, CA
Alyssa Sandquist is a nurse practitioner with a practice address in Oxnard, California, and NPI 1225538523, issued on Feb 14, 2018. Check the license (California NP95030240, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alyssa Sandquist
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License numbers
- NP95030240 CA
232247 NC
AP61118837 WA
Self-reported in NPPES; status is on the state search - Practice location
- St. John's Regional Medical Center - 1600 N Rose Avenue, Oxnard, CA 93030
- Phone
- (805) 988-2500
- Enumerated
- Feb 14, 2018
- Record last updated
- Feb 26, 2025
- Fax
- (805) 485-3025
- Medicare enrollment
- Enrolled (PECOS I20241011002016); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at St. John's Regional Medical Center - 1600 N Rose Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Cinthia Orosco, AG-ACNPAcute Care Nurse Practitioner1194505172
Verify Alyssa Sandquist in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license NP95030240Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% more Medicare Part D claims than the average nurse practitioner in 2024
1,221 Medicare Part D claims for 184 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Spironolactone148 claims
- Metoprolol Succinate134 claims
- Jardiance132 claims
- Entresto87 claims
- Potassium Chloride84 claims
- Torsemide65 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $126.88
2 payments; by number, the most common kind was food and beverage; the largest payer was Abiomed. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- West Coast Critical Care Specialists, Inc.Oxnard, CA
- West Coast Pulmonary Physicians A Professional Medical CorporationOxnard, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alyssa Sandquist among 8,223 nurse practitioner records in California
Alyssa Sandquist is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 56% of them.
- NPI issued2018 · 56% of these records are older, 39% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated2017 · median 2017 among the 3,425 with a school on file
- Record last updated2025 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in California
There are 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in Oxnard → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Rachel Araujo, NPOxnard, CA 930301508632316
- Tina Beckham, F.N.P.Oxnard, CA 930301801837836
- Kaliyan Bryant, NPOxnard, CA 930301306421656
- Christine Lau, N.P.Oxnard, CA 930301417178542
- Wendy Mzuka, AGNP-COxnard, CA 930301508566027
- Julia Nalbandian, NP-COxnard, CA 930301902569304
- Barbara L Shah, NPOxnard, CA 930301801978085
- Melissa Sixbey, FNP-COxnard, CA 930301811602568
Common questions
What is Alyssa Sandquist's NPI number?
Alyssa Sandquist's National Provider Identifier (NPI) is 1225538523, issued on Feb 14, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Alyssa Sandquist located?
The NPPES record lists a practice address at St. John's Regional Medical Center - 1600 N Rose Avenue, Oxnard, CA, 93030. Phone: (805) 988-2500. Providers update this record themselves, so call before visiting.
How can I verify Alyssa Sandquist's license?
NPPES lists California license number NP95030240, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Alyssa Sandquist prescribe under Medicare Part D?
In 2024, Alyssa Sandquist had 1,221 Medicare Part D claims for 184 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.