NPPES file of Aug 9, 2026

Marena Mazurek, APRN, FNP-C

Family Nurse Practitioner · Oxnard, CA

Marena Mazurek, APRN, FNP-C is a family nurse practitioner with a practice address in Oxnard, California, and NPI 1639063852, issued on Jun 3, 2025. Check the license (California 95034115, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639063852
Name
Marena Mazurek
Credential
APRN, FNP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
95034115 CA
Self-reported in NPPES; status is on the state search
Practice location
2100 Statham Blvd, Oxnard, CA 93033
Phone
(805) 330-8685
Enumerated
Jun 3, 2025
Record last updated
Jun 23, 2025
Medicare enrollment
Enrolled (PECOS I20250714003480); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →

Also registered at 2100 Statham Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Adetoun Adebule, M.D.Obstetrics & Gynecology Physician1881035715
  2. Etienne ArmijoPhysician Assistant1093586067
  3. Virginia BauerMarriage & Family Therapist1437721297
  4. Wendy Davidson, NPFamily Nurse Practitioner1154360154
  5. Shubh DhruvPhysician Assistant1477329381
  6. Elham ElahiyounDentist1295814648

Verify Marena Mazurek in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 95034115    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Clinicas Del Camino Real IncOxnard, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Marena Mazurek among 16,966 family nurse practitioner records in California

Marena Mazurek, APRN, FNP-C is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 90% of them.

  • NPI issued2025 · 90% of these records are older, 3% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 40% of these records are
  • Graduated2025 · median 2019 among the 6,793 with a school on file
  • Record last updated2025 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

58 family nurse practitioner records list a practice address in Oxnard

They are 58 of the 3,211 NPPES records with a practice address in Oxnard, and 16,966 family nurse practitioner records in California.

All 16,966 in California → Every provider in Oxnard → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Danilo Bernal, NPOxnard, CA 930331134548605
  2. Mitchell Brand, FNPOxnard, CA 930331568980589
  3. Wendy Davidson, NPOxnard, CA 930331154360154
  4. Gabriela FloresOxnard, CA 930331841178191
  5. Melody Grimmett, FNPOxnard, CA 930331568592574
  6. Eloise Johnns, ARNPOxnard, CA 930331689097461
  7. Evelyn Magdaleno, NPOxnard, CA 930331134891732
  8. Deanna McFadden, NURSE PRACTITIONEROxnard, CA 930331497969422

Common questions

What is Marena Mazurek, APRN, FNP-C's NPI number?

Marena Mazurek, APRN, FNP-C's National Provider Identifier (NPI) is 1639063852, issued on Jun 3, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Marena Mazurek, APRN, FNP-C located?

The NPPES record lists a practice address at 2100 Statham Blvd, Oxnard, CA, 93033. Phone: (805) 330-8685. Providers update this record themselves, so call before visiting.

How can I verify Marena Mazurek, APRN, FNP-C's license?

NPPES lists California license number 95034115, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.