JAMES W ONEIL M.D.
NPI 1669462347
Ophthalmology - Pediatric Ophthalmology and Strabismus Specialist in Phoenix, AZ
About James W Oneil M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JAMES W ONEIL M.D. (NPI 1669462347) is an individual pediatric ophthalmology and strabismus specialist in Phoenix, Arizona, licensed in Arizona (20998) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
James W Oneil M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show James Oneil reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Phoenix, AZ 85016
- Reassigned Medicare billing, Arizona enrollment
- 1,416 clinicians in this Medicare group
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 85006 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHOENIX, AZ 85006
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 James Oneil's NPI number?
The NPI number for James Oneil is 1669462347. It was assigned to this individual provider in the NPPES registry on October 25, 2005.
Where is James Oneil located?
James Oneil practices at 1920 E Cambridge Ave Ste 203, Phoenix, AZ 85006. The listed phone number is (602) 933-3937.
What is James Oneil's specialty?
The primary specialty registered for this NPI is Ophthalmology, specializing in Pediatric Ophthalmology and Strabismus Specialist, with taxonomy code 207WX0110X.
Is James Oneil enrolled in Medicare?
Yes. James Oneil is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for James Oneil's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Oneil reassigns Medicare benefits to Phoenix Children's Hospital (Phoenix, AZ). 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 James Oneil'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 James Oneil was last updated on May 31, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years 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.