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WILLIAM I ZAIA MD
NPI 1649362500
Pediatrics - Neonatal-Perinatal Medicine in Marion, OH

Active since September 29, 2006PECOS Enrolled
1000 MCKINLEY PARK DR, MARION, OH 43302(740) 383-8400 Get Directions Write a Review

NPPES record last updated: February 6, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 6, 2026, Mar 7, 2023, Sep 21, 2021 and 1 more (4 updates tracked since 2021).

About William I Zaia Md NPPES

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

WILLIAM I ZAIA MD (NPI 1649362500) is an individual neonatal-perinatal medicine provider in Marion, Ohio, licensed in Ohio (35057377) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1649362500
Entity TypeIndividualMale
Primary Taxonomy2080N0001X
Provider Legal NameWILLIAM I ZAIACredential: MD
Location Address1000 MCKINLEY PARK DRMarion, OH 43302-6399
Mailing Address285 E State St Ste 520Columbus, OH 43215-4359 · (614) 566-8586
Phone(740) 383-8400
Sole ProprietorNo
Enumeration DateSeptember 29, 2006
Last NPPES UpdateFebruary 6, 20264 updates tracked since enumeration
NPPES CertifiedFebruary 6, 2026
✔ NPI 1649362500 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in OH · 35057377
Definition
A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.
1000 MCKINLEY PARK DR, Marion, OH 43302
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Other Identifiers 1

Medicaid0711340OH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Antidote Health Plan of Ohio, Inc., CareSource, Molina Healthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William I Zaia 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 William Zaia reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pediatric Academic Association, Inc.
43 mi
Pediatrics
700 CHILDRENS DR
Columbus, OH 43205
  • Reassigned Medicare billing, Ohio enrollment
  • 1,246 clinicians in this Medicare group
NPI 1063419943 (614) 722-4579

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

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.

JENNIFER BIANCA COFFEY CNP
Nurse Practitioner (Acute Care)
1000 MCKINLEY PARK DR
MARION, OH 43302
Marion County (740) 383-8400
MRS. DELLA LANE RICE NP
Nurse Practitioner
1000 MCKINLEY PARK DR
MARION, OH 43302
Marion County (740) 383-8473
JILL R THOMAS PAC
Physician Assistant
1000 MCKINLEY PARK DR
MARION, OH 43302
Marion County (740) 383-8700
ASHLEY JUDSON RD
Dietitian, Registered
1000 MCKINLEY PARK DR
MARION, OH 43302
Marion County (740) 383-8616
FRANKLIN R MILLARD PAC
Physician Assistant
1000 MCKINLEY PARK DR
MARION, OH 43302
Marion County (740) 383-8700
VEERA CHANDRA SEKHAR VEERLA MD
Hospitalist
1000 MCKINLEY PARK DR
MARION, OH 43302
Marion County (740) 383-8473
BRAD BABINES RDN, LD
Dietitian, Registered
1000 MCKINLEY PARK DR
MARION, OH 43302
Marion County (740) 383-8400
DR. MELISSA O'RYAN MEKESA M.D.
Emergency Medicine
1000 MCKINLEY PARK DR
MARION, OH 43302
Marion County (740) 383-8700

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 William Zaia's NPI number?

The NPI number for William Zaia is 1649362500. It was assigned to this individual provider in the NPPES registry on September 29, 2006.

Where is William Zaia located?

William Zaia practices at 1000 Mckinley Park Dr, Marion, OH 43302. The listed phone number is (740) 383-8400.

What is William Zaia's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is William Zaia enrolled in Medicare?

Yes. William Zaia is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for William Zaia's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Zaia reassigns Medicare benefits to Pediatric Academic Association, Inc. (Columbus, OH). 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 William Zaia's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Zaia accept?

Health plans from Antidote Health Plan of Ohio, Inc., CareSource and Molina Healthcare list William Zaia 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 William Zaia was last updated on February 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.