Quick answers
- Which hospitals does Christopher J. Oconnor work at?
- Medicare's official clinician data lists Christopher J. Oconnor at 1 hospital: Rush University Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Christopher J. Oconnor see patients?
- Medicare's clinician data lists 2 practice locations, including Chicago, IL and Oak Park, IL. Call before your visit to confirm the address.
- What is Christopher J. Oconnor's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Christopher J. Oconnor accept Medicare assignment?
- Yes. Medicare's clinician data says Christopher J. Oconnor 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 Christopher J. Oconnor?
- (312) 942-3138, as listed in official Medicare / NPI Registry data.
- What is Christopher J. Oconnor's NPI number?
- 1164442505. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Christopher J. Oconnor works
Medicare's Facility Affiliation Data lists Christopher J. Oconnor at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Rush University Medical CenterChicago, IL · Acute Care Hospital · CCN 140119
Practice locations
Addresses where Christopher J. Oconnor is enrolled with Medicare (CMS data updated 2026-10-02).
- 1653 W Congress PkwyChicago, IL 60612 (312) 942‑3138
- 520 S Maple AveOak Park, IL 60304 (312) 563‑3971
Group practices
Medicare enrollment lists Christopher J. Oconnor as a member of this group (CMS data updated 2026-10-02).
- University Anesthesiologists SC151 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Rochester School Of Medicine And Dentistry |
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1164442505 |
| 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