Quick answers
- Which hospitals does Stephen O'Connor work at?
- Medicare's official clinician data lists Stephen O'Connor at 5 hospitals: CHI Health Bergan Mercy, CHI Health Lakeside, CHI Health Mercy Council Bluffs, Memorial Community Hospital & Health System and St Lukes Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Stephen O'Connor see patients?
- Medicare's clinician data lists 6 practice locations, including Sioux City, IA, Lincoln, NE and Omaha, NE. Call before your visit to confirm the address.
- What is Stephen O'Connor's specialty?
- Medicare lists Interventional Cardiology as the primary specialty, and also Cardiovascular Disease (Cardiology).
- Does Stephen O'Connor accept Medicare assignment?
- Yes. Medicare's clinician data says Stephen O'Connor 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 O'Connor?
- (712) 239-4702, as listed in official Medicare / NPI Registry data.
- What is Stephen O'Connor's NPI number?
- 1548238512. 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 O'Connor works
Medicare's Facility Affiliation Data lists Stephen O'Connor at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- CHI Health Bergan MercyOmaha, NE · Acute Care Hospital · CCN 280060
- CHI Health LakesideOmaha, NE · Acute Care Hospital · CCN 280130
- CHI Health Mercy Council BluffsCouncil Bluffs, IA · Acute Care Hospital · CCN 160028
- Memorial Community Hospital & Health SystemBlair, NE · Critical Access Hospital · CCN 281359
- St Lukes Regional Medical CenterSioux City, IA · Acute Care Hospital · CCN 160146
Practice locations
Addresses where Stephen O'Connor is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 2730 Pierce St, Suite 300bSioux City, IA 51104 (712) 239‑4702
- 555 S 70th St, St Elizabeth Regional Med CenterLincoln, NE 68510 (402) 219‑8000
- 5885 Sunnybrook Dr, Suite L200Sioux City, IA 51106 (712) 239‑4702
- 7500 Mercy RdOmaha, NE 68124 (402) 398‑5580
- 800 Mercy DrCouncil Bluffs, IA 51503 (712) 328‑5490
Group practices
Medicare enrollment lists Stephen O'Connor as a member of these groups (CMS data updated 2026-10-02).
- Alegent Creighton Clinic963 clinicians in the group
- CHI Health Clinic Specialty LLC320 clinicians in the group
- Northwest Iowa Hospital Corporation160 clinicians in the group
Specialties
Other interventional cardiologists in Iowa
Clinicians with the same Medicare primary specialty in Iowa — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Creighton University School Of Medicine |
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548238512 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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