Alyssa Sandquist
NPI 1225538523 · Nurse Practitioner · Oxnard, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alyssa Sandquist is a Nurse Practitioner provider in Oxnard, CA (NPI 1225538523).
Provider details
- NPI number
- 1225538523
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- AP61118837 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
6 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
215 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 123 | $63 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 50 | $108 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 30 | $14 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 12 | $95 |
Typical Medicare-allowed amounts for these services range $14–$108 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Spironolactone | 148 | 51 |
| Metoprolol Succinate | 134 | 49 |
| Empagliflozinbrand: Jardiance | 132 | 26 |
| Sacubitril/Valsartanbrand: Entresto | 87 | 24 |
| Potassium Chloride | 84 | 29 |
| Torsemide | 65 | 33 |
| Atorvastatin Calcium | 58 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$127 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (5)
- St. John'S Pleasant Valley Hospital - 2309 Antonio AveCamarillo, CA 93010-1414Phone: (805) 389-5800Fax: (805) 485-3025
- 4000 Calle Tecate #105Camarillo, CA 93012-5283Phone: (805) 485-2400Fax: (805) 485-3025
- 1910 Outlet Center DriveOxnard, CA 93036-0677Phone: (805) 485-2400Fax: (805) 485-3025
- 2100 Stantonsburg RdGreenville, NC 27834-2818Phone: (252) 847-4100
- 62 W 7th Ave Ste 232Spokane, WA 99204-2321Phone: (509) 474-2041Fax: (509) 598-2139
Registry dates
- Enumerated
- 2018-02-14
- Last updated
- 2025-02-26
- Certified
- 2025-02-26
Frequently asked questions
- What is Alyssa Sandquist's NPI number?
- Alyssa Sandquist's National Provider Identifier (NPI) is 1225538523, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alyssa Sandquist's specialty?
- Alyssa Sandquist is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alyssa Sandquist located?
- Alyssa Sandquist's practice location on file with NPPES is St. John'S Regional Medical Center - 1600 N Rose Avenue, Oxnard, CA 93030-3722.
- What is Alyssa Sandquist's phone number?
- The practice phone number listed in the NPPES registry for Alyssa Sandquist is (805) 988-2500.
- Does Alyssa Sandquist accept Medicare?
- Alyssa Sandquist is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alyssa Sandquist's NPI active?
- Yes — Alyssa Sandquist's NPI (1225538523) is active in the NPPES registry as of the last update on 2025-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.