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DR. SUSAN MEZEY LEIB MD
NPI 1376515395
Pediatrics in Philadelphia, PA

Active since February 03, 2006PECOS Enrolled
5501 OLD YORK RD, PALEY 1, PHILADELPHIA, PA 19141(215) 456-7170(215) 456-4923 Get Directions Write a Review

NPPES record last updated: October 24, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Susan Mezey Leib Md NPPES

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

DR. SUSAN MEZEY LEIB MD (NPI 1376515395) is an individual pediatrics provider in Philadelphia, Pennsylvania, licensed in New Jersey (25MA12694000) and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1376515395
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. SUSAN MEZEY LEIBCredential: MD
Location Address5501 OLD YORK RD, PALEY 1Philadelphia, PA 19141-3018
Mailing AddressPo Box 8500-8735Philadelphia, PA 19178-0001 · (215) 456-7000 · Fax (215) 254-3289
Phone(215) 456-7170
Fax(215) 456-4923
Sole ProprietorNo
Enumeration DateFebruary 3, 2006
Last NPPES UpdateOctober 24, 2025
NPPES CertifiedOctober 24, 2025
✔ NPI 1376515395 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
Licenses✔ Licensed in NJ · 25MA12694000✔ Licensed in PA · MD439546
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
5501 OLD YORK RD, Philadelphia, PA 19141
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Other Names 1

Former Name (1)Susan Mezey

Other Identifiers 1

Medicaid001306465CT

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 and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Susan Mezey Leib 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 Reassignment

Medicare enrollment records show Susan Leib reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Einstein Practice Plan Inc
Same address
Diagnostic Radiology
5501 OLD YORK RD
Philadelphia, PA 19141
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 1,205 clinicians in this Medicare group
NPI 1396703955 (215) 456-6200

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 19141 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
$92.69 typical visit price
range $59.88 – $180.99
Typical copayment $23.17 (range $14.97 – $45.24)
Most-billed visit code 99203
Established Patient
$105.21 typical visit price
range $19.30 – $147.29
Typical copayment $26.30 (range $4.82 – $36.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

KENNETH KLECKNER MD
Emergency Medicine
5501 OLD YORK RD, EINSTEIN MEDICAL CENTER - PHILADELPHIA
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-6679
MS. AMMAN HASSAN MD
Pediatrics
5501 OLD YORK RD
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-3810
TAYLOR NICOLE THOMPSON PA-C
Physician Assistant (Medical)
5501 OLD YORK RD, KORMAN BUILDING SUITE 202
PHILADELPHIA, PA 19141
Philadelphia County (215) 254-2630
STEPHEN RYAN CHEN
Orthopaedic Surgery
5501 OLD YORK RD
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-7890
DR. DHRUV SHARMA MD
Student in an Organized Health Care Education/Training Program
5501 OLD YORK RD
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-7890
TIMOTHY DANIEL GARDNER DO
Student in an Organized Health Care Education/Training Program
5501 OLD YORK RD
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-7890
DR. JONATHAN THOMAS LUCIANI DO
Student in an Organized Health Care Education/Training Program
5501 OLD YORK RD
PHILADELPHIA, PA 19141
Philadelphia County (215) 456-7890
ASHIKA KAPOOR MD
Psychiatry & Neurology (Psychiatry)
5501 OLD YORK RD
PHILA, PA 19141
Philadelphia County (215) 456-8103

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 Susan Leib's NPI number?

The NPI number for Susan Leib is 1376515395. It was assigned to this individual provider in the NPPES registry on February 3, 2006. The provider is also known as Susan Mezey.

Where is Susan Leib located?

Susan Leib practices at 5501 Old York Rd Paley 1, Philadelphia, PA 19141. The listed phone number is (215) 456-7170.

What is Susan Leib's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Susan Leib enrolled in Medicare?

Yes. Susan Leib is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Susan Leib's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Susan Leib reassigns Medicare benefits to Einstein Practice Plan Inc (Philadelphia, PA). The 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 Susan Leib's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Susan Leib accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Buckeye Health Plan and Oscar Health list Susan Leib 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 Susan Leib was last updated on October 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.