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General Surgery

Stephen J. O Neil, MD

Works at hospitals in Indianapolis, IN · Indiana

Summary

Stephen J. O Neil, MD (General Surgery) is listed by Medicare at 3 hospitals in Indianapolis, IN. NPI 1629009956. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Stephen J. O Neil, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

General SurgeryPrimary specialty
YesAccepts Medicare assignment
35Years since medical school (graduated 1991)
Northwestern University Feinberg Medical SchoolMedical school
MaleGender (as listed)
Community Physicians of Indiana IncGroup practice

Quick answers

Which hospitals does Stephen J. O Neil work at?
Medicare's official clinician data lists Stephen J. O Neil at 3 hospitals: Community Hospital East, Community Hospital South, Inc. and Franciscan Health Indianapolis. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Stephen J. O Neil see patients?
Medicare's clinician data lists 1 practice location in Indianapolis, IN. Call before your visit to confirm the address.
What is Stephen J. O Neil's specialty?
Medicare lists General Surgery as the primary specialty.
Does Stephen J. O Neil accept Medicare assignment?
Yes. Medicare's clinician data says Stephen J. O Neil 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 Stephen J. O Neil?
(317) 621-6262, as listed in official Medicare / NPI Registry data.
What is Stephen J. O Neil's NPI number?
1629009956. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Stephen J. O Neil works

Medicare's Facility Affiliation Data lists Stephen J. O Neil at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Stephen J. O Neil is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Stephen J. O Neil as a member of this group (CMS data updated 2026-10-02).

  • Community Physicians of Indiana Inc1,565 clinicians in the group

Specialties

Find other General Surgery doctors in Indiana →

Other general surgeons in Indianapolis

Clinicians with the same Medicare primary specialty in Indianapolis, IN — not a recommendation.

All general surgeons in Indianapolis →

Clinician information

CredentialMD
Medical schoolNorthwestern University Feinberg Medical School
Graduation year1991
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1629009956
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians