Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Rheumatology

James W. McNeilis, MD

Sees patients in Westerville, OH · Ohio

Summary

James W. McNeilis, MD (Rheumatology) is enrolled with Medicare at 1 practice location in Westerville, OH. NPI 1811010911. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about James W. McNeilis, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

RheumatologyPrimary specialty
YesAccepts Medicare assignment
23Years since medical school (graduated 2003)
Ohio State University College Of MedicineMedical school
MaleGender (as listed)

Quick answers

Where does James W. McNeilis see patients?
Medicare's clinician data lists 1 practice location in Westerville, OH. Call before your visit to confirm the address.
What is James W. McNeilis's specialty?
Medicare lists Rheumatology as the primary specialty.
Does James W. McNeilis accept Medicare assignment?
Yes. Medicare's clinician data says James W. McNeilis accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for James W. McNeilis?
(614) 389-3536, as listed in official Medicare / NPI Registry data.
What is James W. McNeilis's NPI number?
1811010911. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where James W. McNeilis is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Rheumatology doctors in Ohio →

Other rheumatologists in Westerville

Clinicians with the same Medicare primary specialty in Westerville, OH — not a recommendation.

All rheumatologists in Westerville →

Clinician information

CredentialMD
Medical schoolOhio State University College Of Medicine
Graduation year2003
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1811010911
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians