DR. BRIAN JAMES O'NEIL M.D.
NPI 1710948914
Emergency Medicine in Royal Oak, MI
About Dr. Brian James O'neil M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. BRIAN JAMES O'NEIL M.D. (NPI 1710948914) is an individual emergency medicine provider in Royal Oak, Michigan, licensed in Michigan (4301407181) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Brian James O'neil M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Brian O'neil reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Detroit, MI 48201
- Reassigned Medicare billing, Michigan enrollment
- 84 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48073 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ROYAL OAK, MI 48073
ROYAL OAK, MI 48073
ROYAL OAK, MI 48073
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 Brian O'neil's NPI number?
The NPI number for Brian O'neil is 1710948914. It was assigned to this individual provider in the NPPES registry on March 29, 2006.
Where is Brian O'neil located?
Brian O'neil practices at 3601 W 13 Mile Rd Ec, Royal Oak, MI 48073. The listed phone number is (248) 898-1031.
What is Brian O'neil's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Brian O'neil enrolled in Medicare?
Yes. Brian O'neil is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Brian O'neil's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brian O'neil reassigns Medicare benefits to Medical Center Emergency Services (Detroit, MI). 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 Brian O'neil'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 Brian O'neil was last updated on July 27, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.