BRIAN JACOB O'NEILL MD
NPI 1700311677
Emergency Medicine in Indianapolis, IN
About Brian Jacob O'neill Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BRIAN JACOB O'NEILL MD (NPI 1700311677) is an individual emergency medicine provider in Indianapolis, Indiana, licensed in Indiana (01087542A) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Indiana University School Of Medicine (2017).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Brian Jacob O'neill Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
5Medicare enrollment records show Brian O'neill reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 523 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 1,781 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 126 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 5,212 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 318 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 46202 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.
INDIANAPOLIS, IN 46202
INDIANAPOLIS, IN 46202
INDIANAPOLIS, IN 46202
INDIANAPOLIS, IN 46202
INDIANAPOLIS, IN 46202
INDIANAPOLIS, IN 46202
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'neill's NPI number?
The NPI number for Brian O'neill is 1700311677. It was assigned to this individual provider in the NPPES registry on April 27, 2017.
Where is Brian O'neill located?
Brian O'neill practices at 705 Riley Hospital Dr, Indianapolis, IN 46202. The listed phone number is (317) 944-5000.
What is Brian O'neill's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Brian O'neill enrolled in Medicare?
Yes. Brian O'neill is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Brian O'neill's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Brian O'neill reassigns Medicare benefits to 5 organizations: Iu Health Medical Group Riley Specialists, LLC (Indianapolis, IN), Indiana University Health Care Associates, Inc (Indianapolis, IN), Icem-Wishard LLC (Indianapolis, IN), Iu Health Medical Group, LLC (Indianapolis, IN) and Indiana Clinic Critical Care LLC (Indianapolis, IN). Each 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'neill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Brian O'neill accept?
Health plans from CareSource and Cigna Healthcare list Brian O'neill 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 Brian O'neill was last updated on March 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.