Genevieve Mazza, MD
NPI 1487281408 · Obstetrics & Gynecology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Genevieve Mazza, MD is a Obstetrics & Gynecology Physician provider in Orange, CA (NPI 1487281408).
Provider details
- NPI number
- 1487281408
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A190631 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 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 (1)
- 1200 North State StreetInpatient Tower, C3f107Los Angeles, CA 90033-1029Phone: (323) 409-8848
Registry dates
- Enumerated
- 2020-03-27
- Last updated
- 2024-09-04
- Certified
- 2024-09-04
Frequently asked questions
- What is Genevieve Mazza's NPI number?
- Genevieve Mazza's National Provider Identifier (NPI) is 1487281408, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Genevieve Mazza's specialty?
- Genevieve Mazza is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Genevieve Mazza located?
- Genevieve Mazza's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3201.
- What is Genevieve Mazza's phone number?
- The practice phone number listed in the NPPES registry for Genevieve Mazza is (714) 456-8888.
- Does Genevieve Mazza accept Medicare?
- Genevieve Mazza is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Genevieve Mazza's NPI active?
- Yes — Genevieve Mazza's NPI (1487281408) is active in the NPPES registry as of the last update on 2024-09-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.