Alejandra Mazzarelli, PA-C
NPI 1669988556 · Physician Assistant · Oxnard, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alejandra Mazzarelli, PA-C is a Physician Assistant provider in Oxnard, CA (NPI 1669988556).
Provider details
- NPI number
- 1669988556
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- Yes
- License
- 55225 (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
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Additional practice locations (2)
- 2061 Indiana DrOxnard, CA 93036-6279Phone: (805) 822-2744
- 201 E Lakeview AveWoodlake, CA 93286-1301Phone: (877) 960-3426
Registry dates
- Enumerated
- 2017-12-14
- Last updated
- 2025-07-02
- Certified
- 2025-07-02
Frequently asked questions
- What is Alejandra Mazzarelli's NPI number?
- Alejandra Mazzarelli's National Provider Identifier (NPI) is 1669988556, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alejandra Mazzarelli's specialty?
- Alejandra Mazzarelli is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alejandra Mazzarelli located?
- Alejandra Mazzarelli's practice location on file with NPPES is 2651 S C St, Oxnard, CA 93033-3560.
- What is Alejandra Mazzarelli's phone number?
- The practice phone number listed in the NPPES registry for Alejandra Mazzarelli is (888) 898-3806.
- Does Alejandra Mazzarelli accept Medicare?
- Alejandra Mazzarelli is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alejandra Mazzarelli's NPI active?
- Yes — Alejandra Mazzarelli's NPI (1669988556) is active in the NPPES registry as of the last update on 2025-07-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.