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DR. MARJEL ZALDIVAR D.O.
NPI 1497900971
Pediatrics in Livingston, NJ

Active since November 25, 2008PECOS Enrolled
203 HILLSIDE AVE, LIVINGSTON, NJ 07039(973) 992-5588 Get Directions Write a Review

NPPES record last updated: June 27, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Marjel Zaldivar D.o. NPPES

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

DR. MARJEL ZALDIVAR D.O. (NPI 1497900971) is an individual pediatrics provider in Livingston, New Jersey, licensed in New Jersey (25MB08935600) and active in the NPI registry since November 2008. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1497900971
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. MARJEL ZALDIVARCredential: D.O.
Location Address203 HILLSIDE AVELivingston, NJ 07039-3648
Mailing Address21 Max Dr, Apt 1aMorristown, NJ 07960-3043 · (718) 309-3864
Phone(973) 992-5588
Sole ProprietorNo
Enumeration DateNovember 25, 2008
Last NPPES UpdateJune 27, 2025
✔ NPI 1497900971 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in NJ · 25MB08935600
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.
203 HILLSIDE AVE, Livingston, NJ 07039
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Marjel Zaldivar D.o. 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 Marjel Zaldivar reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southern California Permanente Medical Group
2,410 mi
Health Maintenance Organization
4647 ZION AVE
San Diego, CA 92120
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1225060742 (619) 528-5000

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 07039 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
$98.09 typical visit price
range $63.84 – $190.92
Typical copayment $24.52 (range $15.96 – $47.73)
Most-billed visit code 99203
Established Patient
$111.57 typical visit price
range $20.97 – $155.92
Typical copayment $27.89 (range $5.24 – $38.98)
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 2

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

ESSEX-MORRIS PEDIATRICS GROUP
Pediatrics
203 HILLSIDE AVE
LIVINGSTON, NJ 07039
Essex County (973) 992-5588
THERESA GIANNATTASIO DO
Pediatrics
203 HILLSIDE AVE
LIVINGSTON, NJ 07039
Essex County (973) 992-5588

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 Marjel Zaldivar's NPI number?

The NPI number for Marjel Zaldivar is 1497900971. It was assigned to this individual provider in the NPPES registry on November 25, 2008.

Where is Marjel Zaldivar located?

Marjel Zaldivar practices at 203 Hillside Ave, Livingston, NJ 07039. The listed phone number is (973) 992-5588.

What is Marjel Zaldivar's specialty?

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

Is Marjel Zaldivar enrolled in Medicare?

Yes. Marjel Zaldivar is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Marjel Zaldivar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marjel Zaldivar reassigns Medicare benefits to Southern California Permanente Medical Group (San Diego, CA). 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 Marjel Zaldivar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Marjel Zaldivar was last updated on June 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.