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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM ROBERT CHRISTOPHER WALLIS OD
NPI 1356317937
Radiology - Diagnostic Radiology in Zanesville, OH

Active since February 24, 2006
838 MARKET ST, ZANESVILLE, OH 43701(740) 452-9319(740) 452-2427 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About William Robert Christopher Wallis Od NPPES

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

WILLIAM ROBERT CHRISTOPHER WALLIS OD (NPI 1356317937) is an individual diagnostic radiology provider in Zanesville, Ohio, licensed in Ohio (34004926) and active in the NPI registry since February 2006.

NPPES Registry Identity

NPI1356317937
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameWILLIAM ROBERT CHRISTOPHER WALLISCredential: OD
Location Address838 MARKET STZanesville, OH 43701
Mailing Address838 Market StZanesville, OH 43701 · (740) 452-9319 · Fax (740) 452-2427
Phone(740) 452-9319
Fax(740) 452-2427
Sole ProprietorNo
Enumeration DateFebruary 24, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1356317937 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License✔ Licensed in OH · 34004926
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
838 MARKET ST, Zanesville, OH 43701
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Other Identifiers 1

Medicaid0940245OH

Other Providers at the Same Location NPPES 3

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

COLEENE GWENETH COOKE MD
Radiology (Diagnostic Radiology)
838 MARKET ST
ZANESVILLE, OH 43701
Muskingum County (740) 452-9319
JACK GREENSPAN MD
Radiology (Diagnostic Radiology)
838 MARKET ST
ZANESVILLE, OH 43701
Muskingum County (740) 452-9319
RICHARD L MELLON MD
Radiology (Diagnostic Radiology)
838 MARKET ST
ZANESVILLE, OH 43701
Muskingum County (740) 452-9319

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 Robert Wallis's NPI number?

The NPI number for William Robert Wallis is 1356317937. It was assigned to this individual provider in the NPPES registry on February 24, 2006.

Where is William Robert Wallis located?

William Robert Wallis practices at 838 Market St, Zanesville, OH 43701. The listed phone number is (740) 452-9319.

What is William Robert Wallis's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

When was this NPI record last updated?

The NPPES record for William Robert Wallis was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 days 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.