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REBECCA MICHELLE MAZAR MD
NPI 1407911449
Obstetrics & Gynecology in Philadelphia, PA

Active since December 27, 2006PECOS Enrolled
86.75/100
CMS Quality Rating
801 SPRUCE ST, PHILADELPHIA, PA 19107(215) 829-3396(215) 829-3661 Get Directions Write a Review

NPPES record last updated: December 18, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Rebecca Michelle Mazar Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

REBECCA MICHELLE MAZAR MD (NPI 1407911449) is an individual obstetrics & gynecology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD432666) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1407911449
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameREBECCA MICHELLE MAZARCredential: MD
Location Address801 SPRUCE STPhiladelphia, PA 19107-5701
Mailing Address801 Spruce StPhiladelphia, PA 19107-5701 · (215) 829-3396 · Fax (215) 829-3661
Phone(215) 829-3396
Fax(215) 829-3661
Sole ProprietorNo
Enumeration DateDecember 27, 2006
Last NPPES UpdateDecember 18, 2013
✔ NPI 1407911449 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Licenses✔ Licensed in PA · MD432666✔ Licensed in NJ · 25MA08341400
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
801 SPRUCE ST, Philadelphia, PA 19107
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter Health, Ambetter Health of Delaware.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rebecca Michelle Mazar Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Rebecca Mazar reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Clinical Care Associates Of The University Of Pennsylvania Health Syst
0.9 mi
Foot and Ankle Surgery
230 W WASHINGTON SQ, 5TH FLOOR
Philadelphia, PA 19106
  • Reassigned Medicare billing, Pennsylvania enrollment
  • Medicare enrollment name: Clinical Care Associates Of The University Of Pennsylvania Health.
  • 983 clinicians in this Medicare group
NPI 1942319777 (215) 829-3668
Clinical Health Care Associates Of New Jersey, PC
8.5 mi
Internal Medicine
409 ROUTE 70 E
Cherry Hill, NJ 08034
  • Reassigned Medicare billing, New Jersey enrollment
  • 793 clinicians in this Medicare group
NPI 1134278971 (856) 427-4336

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 19107 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$137.17 typical visit price
range $59.88 – $180.99
Typical copayment $34.29 (range $14.97 – $45.24)
Most-billed visit code 99204
Established Patient
$74.47 typical visit price
range $19.30 – $147.29
Typical copayment $18.61 (range $4.82 – $36.82)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

86.75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality75.91
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. LIMING QIU MD
Neurological Surgery
801 SPRUCE ST, 3RD FLOOR - SUITE 302
PHILADELPHIA, PA 19107
Philadelphia County (215) 829-6700
PAUL A. G. COHEN MD
Internal Medicine
801 SPRUCE ST, SUITE 3E
PHILADELPHIA, PA 19107
Philadelphia County (215) 829-8484
MICHAEL A HUSSON MD
Pathology (Anatomic Pathology & Clinical Pathology)
801 SPRUCE ST, 10TH FLOOR
PHILADELPHIA, PA 19107
Philadelphia County (215) 615-3517
DR. ANITA ROSE DOYLE PHARMD
Pharmacist
801 SPRUCE ST
PHILADELPHIA, PA 19107
Philadelphia County (215) 829-3246
MRS. LARA BAGBY M.S., C.G.C.
Genetic Counselor, MS
801 SPRUCE ST, 8TH FLOOR
PHILADELPHIA, PA 19107
Philadelphia County (215) 829-5580
MR. GREGG CHARLES JUGLA PHARMD
Pharmacist
801 SPRUCE ST
PHILADELPHIA, PA 19107
Philadelphia County (215) 829-5451
LENA MARIE FLOWER CRNP
Nurse Practitioner (Women's Health)
801 SPRUCE ST, 8TH FLOOR
PHILADELPHIA, PA 19107
Philadelphia County (215) 829-7201
JOHN B KNEELAND MD
Radiology (Diagnostic Radiology)
801 SPRUCE ST, LOWER LEVEL
PHILADELPHIA, PA 19107
Philadelphia County (215) 829-6741

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Rebecca Mazar's NPI number?

The NPI number for Rebecca Mazar is 1407911449. It was assigned to this individual provider in the NPPES registry on December 27, 2006.

Where is Rebecca Mazar located?

Rebecca Mazar practices at 801 Spruce St, Philadelphia, PA 19107. The listed phone number is (215) 829-3396.

What is Rebecca Mazar's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Rebecca Mazar enrolled in Medicare?

Yes. Rebecca Mazar is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Rebecca Mazar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rebecca Mazar reassigns Medicare benefits to 2 organizations: Clinical Care Associates Of The University Of Pennsylvania Health Syst (Philadelphia, PA) and Clinical Health Care Associates Of New Jersey, PC (Cherry Hill, NJ). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Rebecca Mazar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Rebecca Mazar accept?

Health plans from Ambetter Health, Ambetter Health of Delaware and Ambetter from Buckeye Health Plan list Rebecca Mazar as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Rebecca Mazar was last updated on December 18, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.