BRIAN JACOB O'NEILL MD
NPI 1700311677
Emergency Medicine in Indianapolis, IN

Active since April 27, 2017PECOS EnrolledAccepts Medicare Assignment
705 RILEY HOSPITAL DR, INDIANAPOLIS, IN 46202(317) 944-5000 Get Directions Write a Review

NPPES record last updated: March 17, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 17, 2025, Nov 8, 2024, Dec 6, 2022 and 1 more (4 updates tracked since 2017).

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

NPI1700311677
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameBRIAN JACOB O'NEILLCredential: MD
Location Address705 RILEY HOSPITAL DRIndianapolis, IN 46202-5109
Mailing Address250 N Shadeland AveIndianapolis, IN 46219-4959
Sole ProprietorNo
Medical School CMSIndiana University School Of MedicineGraduated 2017
Enumeration DateApril 27, 2017
Last NPPES UpdateMarch 17, 20254 updates tracked since enumeration
NPPES CertifiedMarch 17, 2025
✔ NPI 1700311677 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in IN · 01087542A
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
705 RILEY HOSPITAL DR, Indianapolis, IN 46202

Secondary Practice Locations 3

Location 1705 Riley Hospital Dr Rm 5867Indianapolis, IN 46202-5109 · Phone (317) 944-4034
Location 2720 Eskenazi AveIndianapolis, IN 46202-5187 · Phone (317) 639-6671 · Fax (317) 963-5492
Location 31701 N Senate BlvdIndianapolis, IN 46202-1239 · Phone (888) 484-3258

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.

PECOS PAC ID4880961275
PECOS Enrollment IDI20220621002222
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

5

Medicare 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.

Pediatrics
705 RILEY HOSPITAL DR
Indianapolis, IN 46202
  • Reassigned Medicare billing, Indiana enrollment
  • 523 clinicians in this Medicare group
General Practice
340 W TENTH ST
Indianapolis, IN 46202
  • Reassigned Medicare billing, Indiana enrollment
  • 1,781 clinicians in this Medicare group
Emergency Medicine
1001 W 10TH ST
Indianapolis, IN 46202
  • Reassigned Medicare billing, Indiana enrollment
  • 126 clinicians in this Medicare group
General Practice
1701 N SENATE BLVD
Indianapolis, IN 46202
  • Reassigned Medicare billing, Indiana enrollment
  • 5,212 clinicians in this Medicare group
Pulmonary Disease
1801 N SENATE BLVD, STE 230
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.

New Patient
$82.04 typical visit price
range $53.07 – $161.76
Typical copayment $20.51 (range $13.26 – $40.44)
Most-billed visit code 99203
Established Patient
$94.22 typical visit price
range $16.93 – $132.22
Typical copayment $23.55 (range $4.23 – $33.05)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Pediatrics (Neonatal-Perinatal Medicine)
705 RILEY HOSPITAL DR
INDIANAPOLIS, IN 46202
Nurse Practitioner (Family)
705 RILEY HOSPITAL DR
INDIANAPOLIS, IN 46202
Pediatrics (Neonatal-Perinatal Medicine)
705 RILEY HOSPITAL DR
INDIANAPOLIS, IN 46202
Dentist (Pediatric Dentistry)
705 RILEY HOSPITAL DR
INDIANAPOLIS, IN 46202
Student in an Organized Health Care Education/Training Program
705 RILEY HOSPITAL DR
INDIANAPOLIS, IN 46202
Student in an Organized Health Care Education/Training Program
705 RILEY HOSPITAL DR
INDIANAPOLIS, IN 46202
Nurse Practitioner (Pediatrics)
705 RILEY HOSPITAL DR, RI 1601
INDIANAPOLIS, IN 46202
Dentist (Pediatric Dentistry)
705 RILEY HOSPITAL DR, ROC - SUITE 4205
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.