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ALYSSA SANDQUIST
NPI 1225538523
Nurse Practitioner in Oxnard, CA

Active since February 14, 2018PECOS EnrolledAccepts Medicare Assignment
ST. JOHN'S REGIONAL MEDICAL CENTER - 1600 N ROSE AVENUE, OXNARD, CA 93030(805) 988-2500(805) 485-3025 Get Directions Write a Review

NPPES record last updated: February 26, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Feb 26, 2025, Oct 4, 2024, May 3, 2021 and 1 more (4 updates tracked since 2018).

About Alyssa Sandquist NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALYSSA SANDQUIST (NPI 1225538523) is an individual nurse practitioner in Oxnard, California, licensed in California (NP95030240) and active in the NPI registry since February 2018. She is enrolled in Medicare PECOS, maintains 5 additional practice locations, and is a graduate of Other (2017).

NPPES Registry Identity

NPI1225538523
Entity TypeIndividualFemale
Primary Taxonomy363L00000X
Provider Legal NameALYSSA SANDQUIST
Location AddressST. JOHN'S REGIONAL MEDICAL CENTER - 1600 N ROSE AVENUEOxnard, CA 93030-3722
Mailing Address62 W 7th Ave Ste 232Spokane, WA 99204-2321 · (509) 474-2041
Phone(805) 988-2500
Fax(805) 485-3025
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateFebruary 14, 2018
Last NPPES UpdateFebruary 26, 20254 updates tracked since enumeration
NPPES CertifiedFebruary 26, 2025
✔ NPI 1225538523 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
Licenses✔ Licensed in CA · NP95030240✔ Licensed in WA · AP61118837✔ Licensed in NC · 232247
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Also ListedNurse Practitioner · GerontologyTaxonomy 363LG0600X · License NP95030240 (CA)
ST. JOHN'S REGIONAL MEDICAL CENTER - 1600 N ROSE AVENUE, Oxnard, CA 93030
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Secondary Practice Locations 5

Location 12100 Stantonsburg RdGreenville, NC 27834-2818 · Phone (252) 847-4100
Location 262 W 7th Ave Ste 232Spokane, WA 99204-2321 · Phone (509) 474-2041 · Fax (509) 598-2139
Location 3St. John's Pleasant Valley Hospital - 2309 Antonio AveCamarillo, CA 93010-1414 · Phone (805) 389-5800 · Fax (805) 485-3025
Location 44000 Calle Tecate #105Camarillo, CA 93012-5283 · Phone (805) 485-2400 · Fax (805) 485-3025
Location 51910 Outlet Center DriveOxnard, CA 93036-0677 · Phone (805) 485-2400 · Fax (805) 485-3025

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Alyssa Sandquist is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID446513295
PECOS Enrollment IDI20241011002016
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
123 services40 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
50 services41 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93030 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$95.28 typical visit price
range $62.32 – $185.36
Typical copayment $23.82 (range $15.58 – $46.34)
Most-billed visit code 99203
Established Patient
$108.74 typical visit price
range $20.68 – $151.85
Typical copayment $27.18 (range $5.17 – $37.96)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
3 suppliers13 claims13 services$91.42 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
2 suppliers12 claims12 services$34.10 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CINTHIA A OROSCO AG-ACNP
Nurse Practitioner (Acute Care)
ST. JOHN'S REGIONAL MEDICAL CENTER - 1600 N ROSE AVENUE
OXNARD, CA 93030
Ventura County (805) 988-2500
DR. NIUSHA DAMAGHI M.D.
Internal Medicine (Critical Care Medicine)
ST. JOHN'S REGIONAL MEDICAL CENTER - 1600 N ROSE AVENUE
OXNARD, CA 93030
Ventura County (000) 000-0000
MS. EMMA CAROLINE DUNCAN APN
Nurse Practitioner (Acute Care)
ST. JOHN'S REGIONAL MEDICAL CENTER - 1600 N ROSE AVENUE
OXNARD, CA 93030
Ventura County (000) 000-0000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alyssa Sandquist's NPI number?

The NPI number for Alyssa Sandquist is 1225538523. It was assigned to this individual provider in the NPPES registry on February 14, 2018.

Where is Alyssa Sandquist located?

Alyssa Sandquist practices at St. John's Regional Medical Center - 1600 N Rose Avenue, Oxnard, CA 93030. The listed phone number is (805) 988-2500.

What is Alyssa Sandquist's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Alyssa Sandquist enrolled in Medicare?

Yes. Alyssa Sandquist is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Alyssa Sandquist was last updated on February 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.