Marena Mazurek, APRN, FNP-C
NPI 1639063852 · Family Nurse Practitioner · Oxnard, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marena Mazurek, APRN, FNP-C is a Family Nurse Practitioner provider in Oxnard, CA (NPI 1639063852).
Provider details
- NPI number
- 1639063852
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN, FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 95034115 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2025-06-03
- Last updated
- 2025-06-23
- Certified
- 2025-06-23
Frequently asked questions
- What is Marena Mazurek's NPI number?
- Marena Mazurek's National Provider Identifier (NPI) is 1639063852, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marena Mazurek's specialty?
- Marena Mazurek is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marena Mazurek located?
- Marena Mazurek's practice location on file with NPPES is 2100 Statham Blvd, Oxnard, CA 93033.
- What is Marena Mazurek's phone number?
- The practice phone number listed in the NPPES registry for Marena Mazurek is (805) 330-8685.
- Does Marena Mazurek accept Medicare?
- Marena Mazurek is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marena Mazurek's NPI active?
- Yes — Marena Mazurek's NPI (1639063852) is active in the NPPES registry as of the last update on 2025-06-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.