Quick answers
- Where does Brian J. O'Neill see patients?
- Medicare's clinician data lists 2 practice locations, including Indianapolis, IN. Call before your visit to confirm the address.
- What is Brian J. O'Neill's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Brian J. O'Neill accept Medicare assignment?
- Yes. Medicare's clinician data says Brian J. O'Neill 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 Brian J. O'Neill?
- (888) 484-3258, as listed in official Medicare / NPI Registry data.
- What is Brian J. O'Neill's NPI number?
- 1700311677. 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 Brian J. O'Neill is enrolled with Medicare (CMS data updated 2026-10-02).
- 1701 N Senate BlvdIndianapolis, IN 46202 (888) 484‑3258
- 705 Riley Hospital DrIndianapolis, IN 46202 (888) 484‑3258
Group practices
Medicare enrollment lists Brian J. O'Neill as a member of these groups (CMS data updated 2026-10-02).
- IU Health Medical Group LLC4,462 clinicians in the group
- IU Health Medical Group Riley Specialists LLC302 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Indianapolis
Clinicians with the same Medicare primary specialty in Indianapolis, IN — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana University School Of Medicine |
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1700311677 |
| Corrections | Report 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians