Rebecca Mazar, MD
NPI 1407911449 · Obstetrics & Gynecology Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rebecca Mazar, MD is a Obstetrics & Gynecology Physician provider in Philadelphia, PA (NPI 1407911449).
Provider details
- NPI number
- 1407911449
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD432666 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs 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
- 2006-12-27
- Last updated
- 2013-12-18
Frequently asked questions
- What is Rebecca Mazar's NPI number?
- Rebecca Mazar's National Provider Identifier (NPI) is 1407911449, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rebecca Mazar's specialty?
- Rebecca Mazar is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Rebecca Mazar located?
- Rebecca Mazar's practice location on file with NPPES is 801 Spruce St, Philadelphia, PA 19107-5701.
- What is Rebecca Mazar's phone number?
- The practice phone number listed in the NPPES registry for Rebecca Mazar is (215) 829-3396.
- Does Rebecca Mazar accept Medicare?
- Rebecca Mazar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rebecca Mazar's NPI active?
- Yes — Rebecca Mazar's NPI (1407911449) is active in the NPPES registry as of the last update on 2013-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.